From 92968f97201d354a7063a56ab6baa38306922618 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Roland=20H=C3=A4der?= <roland@mxchange.org>
Date: Fri, 3 Mar 2023 10:07:20 +0100
Subject: [PATCH 1/1] Continued: - added more debug lines - added a few more
 checks on parameters - moved EXCEPTION_NULL_POINTER to FrameworkInterface

---
 .../classes/class_BaseFrameworkSystem.php     |   7 +-
 .../user/class_UserDatabaseFrontend.php       |   4 +-
 .../binary/class_BaseBinaryFile.php           | 267 +++++++++---------
 .../binary/index/class_IndexFile.php          |  48 ++--
 .../binary/stack/class_StackFile.php          |  46 +--
 .../class_BaseAbstractFile.php                |  44 ++-
 .../file_directories/class_BaseFileIo.php     |   2 +-
 .../class_FrameworkDirectoryPointer.php       |  34 ++-
 .../class_FrameworkRawFileInputPointer.php    |  18 +-
 .../class_FrameworkTextFileInputPointer.php   |  14 +-
 .../class_FrameworkFileInputOutputPointer.php |  45 +--
 .../io_stream/class_FileIoStream.php          |  82 ++++--
 .../class_FrameworkRawFileOutputPointer.php   |  11 +-
 .../class_FrameworkTextFileOutputPointer.php  |   2 +-
 .../payment/class_PaymentDiscoveryFilter.php  |   2 +-
 .../main/classes/helper/class_BaseHelper.php  |   2 +-
 .../html/links/class_HtmlLinkHelper.php       |   2 +-
 .../registry/class_RegistryIterator.php       |   2 +-
 .../mailer/debug/class_DebugMailer.php        |   2 +-
 .../registry/object/class_ObjectRegistry.php  |   2 +-
 .../interfaces/class_FrameworkInterface.php   |   1 +
 .../debug/class_DebugMiddleware.php           |  10 +-
 22 files changed, 359 insertions(+), 288 deletions(-)

diff --git a/framework/main/classes/class_BaseFrameworkSystem.php b/framework/main/classes/class_BaseFrameworkSystem.php
index 431c3a10..2200b370 100644
--- a/framework/main/classes/class_BaseFrameworkSystem.php
+++ b/framework/main/classes/class_BaseFrameworkSystem.php
@@ -91,7 +91,6 @@ abstract class BaseFrameworkSystem extends stdClass implements FrameworkInterfac
 	 ***********************/
 
 	// @todo Try to clean these constants up
-	const EXCEPTION_IS_NULL_POINTER              = 0x001;
 	const EXCEPTION_IS_NO_OBJECT                 = 0x002;
 	const EXCEPTION_IS_NO_ARRAY                  = 0x003;
 	const EXCEPTION_MISSING_METHOD               = 0x004;
@@ -711,7 +710,7 @@ Loaded includes:
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-FRAMEWORK-SYSTEM: this->resultInstance[]=%s', gettype($this->getResultInstance())));
 		if (!$this->getResultInstance() instanceof SearchableResult) {
 			// Throw an exception here
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Rewind it
@@ -767,7 +766,7 @@ Loaded includes:
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-FRAMEWORK-SYSTEM: resultInstance[]=%s', gettype($resultInstance)));
 		if (is_null($resultInstance)) {
 			// Then the user instance is no longer valid (expired cookies?)
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Get current array
@@ -818,7 +817,7 @@ Loaded includes:
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-FRAMEWORK-SYSTEM: resultInstance[]=%s', gettype($resultInstance)));
 		if (is_null($resultInstance)) {
 			// Then the user instance is no longer valid (expired cookies?)
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Get current array
diff --git a/framework/main/classes/database/frontend/user/class_UserDatabaseFrontend.php b/framework/main/classes/database/frontend/user/class_UserDatabaseFrontend.php
index c0cae135..fc8348ad 100644
--- a/framework/main/classes/database/frontend/user/class_UserDatabaseFrontend.php
+++ b/framework/main/classes/database/frontend/user/class_UserDatabaseFrontend.php
@@ -113,7 +113,7 @@ class UserDatabaseFrontend extends BaseDatabaseFrontend implements ManageableAcc
 			// Is this null?
 			if (is_null($updateInstance)) {
 				// Throw an exception here
-				throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+				throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 			}
 
 			// Get search instance from update instance
@@ -122,7 +122,7 @@ class UserDatabaseFrontend extends BaseDatabaseFrontend implements ManageableAcc
 			// Is it still null?
 			if (is_null($searchInstance)) {
 				// Throw an exception here
-				throw new NullPointerException($updateInstance, self::EXCEPTION_IS_NULL_POINTER);
+				throw new NullPointerException($updateInstance, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 			}
 		}
 
diff --git a/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php b/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php
index a7a1dcfd..cb53584f 100644
--- a/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php
+++ b/framework/main/classes/file_directories/binary/class_BaseBinaryFile.php
@@ -96,7 +96,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function __construct (string $className) {
 		// Call parent constructor
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: className=%s - CALLED!', $className));
 		parent::__construct($className);
+
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FRAMEWORK-DIRECTORY-POINTER: EXIT!');
 	}
 
 	/**
@@ -106,7 +110,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	void
 	 */
 	private function setBackBuffer (string $backBuffer) {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting backBuffer(%d)=%s - CALLED!', strlen($backBuffer), $backBuffer));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting backBuffer(%d)=%s - CALLED!', strlen($backBuffer), $backBuffer));
 		$this->backBuffer = $backBuffer;
 	}
 
@@ -116,7 +120,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	$backBuffer		Characters "stored" in back-buffer
 	 */
 	private function getBackBuffer () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Getting this->backBuffer(%d)=%s - CALLED!', strlen($this->backBuffer), $this->backBuffer));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->backBuffer(%d)=%s - CALLED!', strlen($this->backBuffer), $this->backBuffer));
 		return $this->backBuffer;
 	}
 
@@ -127,7 +131,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	void
 	 */
 	private function setCurrentBlock (string $currentBlock) {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting currentBlock(%d)=%s - CALLED!', strlen($currentBlock), $currentBlock));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting currentBlock(%d)=%s - CALLED!', strlen($currentBlock), $currentBlock));
 		$this->currentBlock = $currentBlock;
 	}
 
@@ -137,7 +141,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	$current	Currently read data
 	 */
 	public function getCurrentBlock () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Getting this->currentBlock(%d)=%s - CALLED!', strlen($this->currentBlock), $this->currentBlock));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->currentBlock(%d)=%s - CALLED!', strlen($this->currentBlock), $this->currentBlock));
 		return $this->currentBlock;
 	}
 
@@ -147,7 +151,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	$totalEntries	Size of file header
 	 */
 	public final function getHeaderSize () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Getting this->headerSize=%d - CALLED!', $this->headerSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->headerSize=%d - CALLED!', $this->headerSize));
 		return $this->headerSize;
 	}
 
@@ -158,7 +162,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	void
 	 */
 	public final function setHeaderSize (int $headerSize) {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting headerSize=%d - CALLED!', $headerSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting headerSize=%d - CALLED!', $headerSize));
 		$this->headerSize = $headerSize;
 	}
 
@@ -189,7 +193,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	$seekPosition	Current seek position (stored here in object)
 	 */
 	public final function getSeekPosition () {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Getting this->seekPosition=%d - CALLED!', $this->seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Getting this->seekPosition=%d - CALLED!', $this->seekPosition));
 		return $this->seekPosition;
 	}
 
@@ -200,7 +204,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @return	void
 	 */
 	protected final function setSeekPosition (int $seekPosition) {
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting seekPosition=%d - CALLED!', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Setting seekPosition=%d - CALLED!', $seekPosition));
 		$this->seekPosition = $seekPosition;
 	}
 
@@ -213,24 +217,24 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function isFileGapsOnly () {
 		// Count every gap
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$gapsSize = 0;
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->gaps()=%d', count($this->gaps)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->gaps()=%d', count($this->gaps)));
 		foreach ($this->gaps as $gap) {
 			// Calculate size of found gap: end-start including both
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: gap[%s]=%d,ga[%s]=%d', BinaryFile::GAPS_INDEX_START, $gap[BinaryFile::GAPS_INDEX_START], BinaryFile::GAPS_INDEX_END, $gap[BinaryFile::GAPS_INDEX_END]));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: gap[%s]=%d,ga[%s]=%d', BinaryFile::GAPS_INDEX_START, $gap[BinaryFile::GAPS_INDEX_START], BinaryFile::GAPS_INDEX_END, $gap[BinaryFile::GAPS_INDEX_END]));
 			$gapsSize += ($gap[BinaryFile::GAPS_INDEX_END] - $gap[BinaryFile::GAPS_INDEX_START]);
 
 			// Debug message
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: gapsSize=%d', $gapsSize));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: gapsSize=%d', $gapsSize));
 		}
 
 		// Total gap size + header size + 1 must be same as file size
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: gapsSize=%d,this->headerSize=%d,this->fileSize=%d', $gapsSize, $this->getHeaderSize(), $this->getFileSize()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: gapsSize=%d,this->headerSize=%d,this->fileSize=%d', $gapsSize, $this->getHeaderSize(), $this->getFileSize()));
 		$determinedFileSize = ($gapsSize + $this->getHeaderSize() + 1);
 
 		// Should not be more!
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: determinedFileSize=%d,this->fileSize=%d', $determinedFileSize, $this->getFileSize()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: determinedFileSize=%d,this->fileSize=%d', $determinedFileSize, $this->getFileSize()));
 		if ($determinedFileSize > $this->getFileSize()) {
 			// Should not happen
 			throw new OutOfBoundsException(sprintf('determinedFileSize=%d is larger than this->fileSize=%d', $determinedFileSize, $this->getFileSize()));
@@ -240,7 +244,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$isGapsOnly = ($determinedFileSize == $this->getFileSize());
 
 		// Return flag
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: isGapsOnly=%d - EXIT!', intval($isGapsOnly)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isGapsOnly=%d - EXIT!', intval($isGapsOnly)));
 		return $isGapsOnly;
 	}
 
@@ -253,26 +257,26 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	private function markFileGapsOnly (string $type, int $minimumBlockLength) {
 		// Is config cache there?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: type=%s,minimumBlockLength=%d - CALLED!', $type, $minimumBlockLength));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: type=%s,minimumBlockLength=%d - CALLED!', $type, $minimumBlockLength));
 		if (!isset(self::$configCache[$type . '_pre_allocate_count'])) {
 			// Then set it
 			self::$configCache[$type . '_pre_allocate_count'] = FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($type . '_pre_allocate_count');
 		}
 
 		// Very simple to do ...
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: self:configCache[%s_pre_allocate_count]()=%d', count(self::$configCache[$type . '_pre_allocate_count'])));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: self:configCache[%s_pre_allocate_count]()=%d', count(self::$configCache[$type . '_pre_allocate_count'])));
 		for ($idx = 0; $idx < self::$configCache[$type . '_pre_allocate_count']; $idx++) {
 			// Calculate start/end positions
 			$startPosition = $idx * $minimumBlockLength;
 			$endPosition = $idx * $minimumBlockLength + $minimumBlockLength;
 
 			// Mark start and end position as gap
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->addGap(%d, %d) ...', $startPosition, $endPosition));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->addGap(%d, %d) ...', $startPosition, $endPosition));
 			$this->addGap($startPosition, $endPosition);
 		}
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -284,14 +288,14 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	private function addGap(int $startPosition, int $endPosition) {
 		// Push to gaps array
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: startPosition=%d,endPosition=%d - CALLED!', $startPosition, $endPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: startPosition=%d,endPosition=%d - CALLED!', $startPosition, $endPosition));
 		array_push($this->gaps, [
 			BinaryFile::GAPS_INDEX_START  => $startPosition,
 			BinaryFile::GAPS_INDEX_END    => $endPosition,
 		]);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -301,11 +305,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	private function initBackBuffer () {
 		// Simply call the setter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$this->setBackBuffer('');
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -317,22 +321,22 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function rewindUpdateSeekPosition (bool $flushHeader = false) {
 		// Seek to beginning of file
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: flushHeader=%d - CALLED!', intval($flushHeader)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: flushHeader=%d - CALLED!', intval($flushHeader)));
 		$this->rewind();
 
 		// And update seek position ...
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->updateSeekPosition() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->updateSeekPosition() ...');
 		$this->updateSeekPosition();
 
 		// Flush headers?
 		if ($flushHeader) {
 			// ... to write it back into the file
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->flushFileHeader() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->flushFileHeader() ...');
 			$this->flushFileHeader();
 		}
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -342,11 +346,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function seekToOldPosition () {
 		// Seek to currently ("old") saved position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$this->seek($this->determineSeekPosition());
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -357,15 +361,15 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function initFile (SplFileInfo $fileInfoInstance) {
 		// Get a file i/o pointer instance
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: fileInfoInstance[%s]=%s - CALLED!', get_class($fileInfoInstance), $fileInfoInstance));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: fileInfoInstance[%s]=%s - CALLED!', get_class($fileInfoInstance), $fileInfoInstance));
 		$pointerInstance = ObjectFactory::createObjectByConfiguredName('file_raw_input_output_class', array($fileInfoInstance));
 
 		// ... and set it here
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting pointerInstance=%s ...', $pointerInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Setting pointerInstance=%s ...', $pointerInstance->__toString()));
 		$this->setPointerInstance($pointerInstance);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -377,21 +381,21 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function markCurrentBlockAsEmpty (int $length) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
 		if ($length < 1) {
 			// Length cannot below one
-			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length));
+			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		}
 
 		// Get current seek position
 		$currentPosition = $this->determineSeekPosition();
 
 		// Now add it as gap entry
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->addGap(%d, %d) ..', ($currentPosition - $length), $currentPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->addGap(%d, %d) ..', ($currentPosition - $length), $currentPosition));
 		$this->addGap(($currentPosition - $length), $currentPosition);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -404,18 +408,18 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function initCountersGapsArray () {
 		// Init counter and seek position to header size
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->determineSeekPosition() - CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->determineSeekPosition() - CALLED!');
 		$seekPosition = $this->getSeekPosition();
 
 		// Set counter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
 		$this->setCounter(0);
 
 		// Get header size
 		$headerSize = $this->getHeaderSize();
 
 		// Set it
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting this->seekPosition=%d ...', $headerSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Setting this->seekPosition=%d ...', $headerSize));
 		$this->setSeekPosition($headerSize);
 
 		// Init arrays
@@ -423,11 +427,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$this->damagedEntries = [];
 
 		// Seek back to old position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->seek(%d) ...', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->seek(%d) ...', $seekPosition));
 		$this->seek($seekPosition);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -437,15 +441,15 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function updateSeekPosition () {
 		// Get key (= seek position)
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$seekPosition = $this->determineSeekPosition();
 
 		// And set it here
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
 		$this->setSeekPosition($seekPosition);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -457,7 +461,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public static function isBlockSeparatorFound (string $str) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: str=%s - CALLED!', $str));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: str=%s - CALLED!', $str));
 		if (empty($str)) {
 			// Throw IAE
 			throw new InvalidArgumentException('Parameter "str" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -467,7 +471,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$isFound = (strpos($str, chr(BinaryFile::SEPARATOR_ENTRIES)) !== false);
 
 		// Return result
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: isFound=%d - EXIT!', intval($isFound)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isFound=%d - EXIT!', intval($isFound)));
 		return $isFound;
 	}
 
@@ -483,7 +487,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function writeData (int $seekPosition, string $data, bool $flushHeader = true) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%s,data()=%d,flushHeader=%d - CALLED!', $seekPosition, strlen($data), intval($flushHeader)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%s,data()=%d,flushHeader=%d - CALLED!', $seekPosition, strlen($data), intval($flushHeader)));
 		if ($seekPosition < 0) {
 			// Invalid seek position
 			throw new OutOfBoundsException(sprintf('seekPosition=%d is not valid', $seekPosition));
@@ -493,31 +497,31 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		}
 
 		// Write data at given position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->writeAtPosition(%d,%s) ...', $seekPosition, $data));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->writeAtPosition(%d,%s) ...', $seekPosition, $data));
 		$this->writeAtPosition($seekPosition, $data);
 
 		// Increment counter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->incrementCounter() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->incrementCounter() ...');
 		$this->incrementCounter();
 
 		// Update seek position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->updateSeekPosition() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->updateSeekPosition() ...');
 		$this->updateSeekPosition();
 
 		// Flush the header?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: flushHeader=%d', intval($flushHeader)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: flushHeader=%d', intval($flushHeader)));
 		if ($flushHeader === true) {
 			// Flush header
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->flushFileHeader() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->flushFileHeader() ...');
 			$this->flushFileHeader();
 
 			// Seek to old position
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->seekToOldPosition() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->seekToOldPosition() ...');
 			$this->seekToOldPosition();
 		}
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -531,7 +535,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function writeAtPosition (int $seekPosition, string $dataStream) {
 		// Validate parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d,dataStream(%d)=%s - CALLED!', $seekPosition, strlen($dataStream), $dataStream));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d,dataStream(%d)=%s - CALLED!', $seekPosition, strlen($dataStream), $dataStream));
 		if ($seekPosition < 0) {
 			// Invalid seek position
 			throw new OutOfBoundsException(sprintf('seekPosition=%d is not valid.', $seekPosition));
@@ -541,11 +545,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		}
 
 		// Call pointer's method
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->pointerInstance->writeAtPosition(%d, %s) ...', $seekPosition, $dataStream));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->pointerInstance->writeAtPosition(%d, %s) ...', $seekPosition, $dataStream));
 		$status = $this->getPointerInstance()->writeAtPosition($seekPosition, $dataStream);
 
 		// Return status
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: status[%s]=%d - EXIT!', gettype($status), $status));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: status[%s]=%d - EXIT!', gettype($status), $status));
 		return $status;
 	}
 
@@ -556,7 +560,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function isFileHeaderInitialized () {
 		// Default is not initialized
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$isInitialized = false;
 
 		// Is the file initialized?
@@ -565,19 +569,19 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 			$this->rewind();
 
 			// Read file header
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->readFileHeader() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->readFileHeader() ...');
 			$this->readFileHeader();
 
 			// Get header count
 			$headerCount = count($this->getHeader());
 
 			// The above method does already check the header
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: headerCount=%d', $headerCount));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: headerCount=%d', $headerCount));
 			$isInitialized = ($headerCount > 0);
 		}
 
 		// Return result
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: isInitialized=%d - EXIT!', intval($isInitialized)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isInitialized=%d - EXIT!', intval($isInitialized)));
 		return $isInitialized;
 	}
 
@@ -589,14 +593,14 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function isFileInitialized () {
 		// Get it from iterator which holds the pointer instance. If false is returned
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$fileSize = $this->size();
 
 		/*
 		 * The returned file size should not be false or NULL as this means
 		 * that the pointer class does not work correctly.
 		 */
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: fileSize[%s]=%d', gettype($fileSize), $fileSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: fileSize[%s]=%d', gettype($fileSize), $fileSize));
 		if (!is_int($fileSize)) {
 			// Bad file?
 			throw new UnexpectedValueException(sprintf('fileSize[]=%s is unexpected', gettype($fileSize)), FrameworkInterface::EXCEPTION_UNEXPECTED_VALUE);
@@ -606,7 +610,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$isInitialized = ($fileSize > 0);
 
 		// Return result
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: isInitialized=%d - EXIT!', intval($isInitialized)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isInitialized=%d - EXIT!', intval($isInitialized)));
 		return $isInitialized;
 	}
 
@@ -618,23 +622,23 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function createFileHeader () {
 		// The file's header should not be initialized here
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		if ($this->isFileHeaderInitialized()) {
 			// Bad method call
 			//* DEBUG-DIE: */ ApplicationEntryPoint::exitApplication(sprintf('[%s:%d]: this=%s', __METHOD__, __LINE__, print_r($this, TRUE)));
-			throw new BadMethodCallException('File header is already initialized but method called');
+			throw new BadMethodCallException('File header is already initialized but method called', FrameworkInterface::EXCEPTION_BAD_METHOD_CALL);
 		}
 
 		// Simple flush file header which will create it.
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->flushFileHeader() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->flushFileHeader() ...');
 		$this->flushFileHeader();
 
 		// Rewind seek position (to beginning of file) and update/flush file header
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->rewindUpdateSeekPosition() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->rewindUpdateSeekPosition() ...');
 		$this->rewindUpdateSeekPosition();
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -644,11 +648,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function determineSeekPosition () {
 		// Call pointer instance
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$seekPosition = $this->getPointerInstance()->determineSeekPosition();
 
 		// Return position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d - EXIT!', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d - EXIT!', $seekPosition));
 		return $seekPosition;
 	}
 
@@ -662,7 +666,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function seek (int $offset, int $whence = SEEK_SET) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: offset=%d,whence=%d - CALLED!', $offset, $whence));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: offset=%d,whence=%d - CALLED!', $offset, $whence));
 		if ($offset < 0) {
 			// No offset is smaller than zero
 			throw new OutOfBoundsException(sprintf('offset=%d is not valid', $offset));
@@ -672,7 +676,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$status = $this->getPointerInstance()->seek($offset, $whence);
 
 		// Return status
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: status[%s]=%d - EXIT!', gettype($status), $status));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: status[%s]=%d - EXIT!', gettype($status), $status));
 		return $status;
 	}
 
@@ -685,22 +689,22 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function read (int $bytes = 0) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: bytes=%d - CALLED!', $bytes));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: bytes=%d - CALLED!', $bytes));
 		if ($bytes < 0) {
 			// Throw exception
 			throw new OutOfBoundsException(sprintf('bytes=%d is not valid', $bytes));
 		}
 
 		// Call pointer instance
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->pointerInstance->read(%d) ...', $bytes));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->pointerInstance->read(%d) ...', $bytes));
 		$data = $this->getPointerInstance()->read($bytes);
 
 		// Update seek position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->updateSeekPosition() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->updateSeekPosition() ...');
 		$this->updateSeekPosition();
 
 		// Return data
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: data[%s]=%s - EXIT!', gettype($data), $data));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: data[%s]=%s - EXIT!', gettype($data), $data));
 		return $data;
 	}
 
@@ -711,11 +715,11 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function rewind () {
 		// Call pointer instance
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		$this->getPointerInstance()->rewind();
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -728,59 +732,59 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function analyzeFileStructure () {
 		// Make sure the file is initialized
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: CALLED!');
 		if (!$this->isFileInitialized()) {
 			// Bad method call
-			throw new BadMethodCallException('Method called but file is not initialized.');
+			throw new BadMethodCallException('Method called but file is not initialized.', FrameworkInterface::EXCEPTION_BAD_METHOD_CALL);
 		}
 
 		// Init counters and gaps array
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->initCounterGapsArrays() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->initCounterGapsArrays() ...');
 		$this->initCountersGapsArray();
 
 		// Output message (as this may take some time)
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('Analyzing file structure ... (this may take some time)'));
+		self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('Analyzing file structure ... (this may take some time)'));
 
 		// First Seek to right after file header
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->seek(%d) ...', $this->getHeaderSize() + 1));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->seek(%d) ...', $this->getHeaderSize() + 1));
 		$this->seek($this->getHeaderSize() + 1);
 
 		// Then try to load all entries
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, looping through file ...', $this->getSeekPosition()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, looping through file ...', $this->getSeekPosition()));
 		while ($this->isValid()) {
 			// Get current entry
 			$current = $this->getCurrentBlock();
 
 			// Go to next entry
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: current=%s, calling this->readNextBlock() ...', $current));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: current=%s, Invoking this->readNextBlock() ...', $current));
 			$this->readNextBlock();
 
 			/*
 			 * If the block is empty, maybe the whole file is? This could mean
 			 * that the file has been pre-allocated.
 			 */
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: current(%d)[]=%s', strlen($current), gettype($current)));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current(%d)[]=%s', strlen($current), gettype($current)));
 			if (empty(trim($current, chr(0)))) {
 				// Then skip this part
-				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: current[]=%s is empty - CONTINUE!', gettype($current)));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current[]=%s is empty - CONTINUE!', gettype($current)));
 				continue;
 			}
 
 			// Handle current record
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: current(%d)[%s]=%s', strlen($current), gettype($current), $current));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current(%d)[%s]=%s', strlen($current), gettype($current), $current));
 		}
 
 		// If the last read block is empty, check gaps
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: current()=%d', strlen($current)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: current()=%d', strlen($current)));
 		if (empty(trim($current, chr(0)))) {
 			// Output message
-			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Found a total of %d gaps.', count($this->gaps)));
+			self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Found a total of %d gaps.', count($this->gaps)));
 
 			// Check gaps, if the whole file is empty.
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->isFileGapsOnly() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->isFileGapsOnly() ...');
 			if ($this->isFileGapsOnly()) {
 				// Only gaps, so don't continue here.
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: File is gaps-only - EXIT!');
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('BASE-BINARY-FILE: File is gaps-only - EXIT!');
 				return;
 			}
 		}
@@ -791,15 +795,15 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		 * defragmentation is to far in the past, or if a "hard" limit has
 		 * reached, run defragmentation.
 		 */
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->isDefragmentationNeeded() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->isDefragmentationNeeded() ...');
 		if ($this->isDefragmentationNeeded()) {
 			// Run "defragmentation"
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->doRunDefragmentation() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->doRunDefragmentation() ...');
 			$this->doRunDefragmentation();
 		}
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -812,10 +816,10 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function readNextBlockByLength (int $length) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,length=%d - CALLED!', $this->getSeekPosition(), $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,length=%d - CALLED!', $this->getSeekPosition(), $length));
 		if ($length < 1) {
 			// Throw IAE
-			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length));
+			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		}
 
 		// Read possibly back-buffered bytes from previous call of next().
@@ -826,21 +830,21 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		 * "block" may not fit, so this loop will continue until the EOB or EOF
 		 * has been reached whatever comes first.
 		 */
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,data()=%d', $this->getSeekPosition(), strlen($data)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,data()=%d', $this->getSeekPosition(), strlen($data)));
 		while ((!$this->isEndOfFileReached()) && (empty($data) || !self::isBlockSeparatorFound($data))) {
 			// Then read the next possible block
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, calling this->read(%d) ...', $this->getSeekPosition(), $length));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, Invoking this->read(%d) ...', $this->getSeekPosition(), $length));
 			$block = $this->read($length);
 
 			// Is the block empty?
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: block()=%d,length=%d', strlen($block), $length));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: block()=%d,length=%d', strlen($block), $length));
 			if (strlen($block) == 0) {
 				// Read empty block, maybe EOF
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, block is empty, maybe EOF reached - BREAK!', $this->getSeekPosition()));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, block is empty, maybe EOF reached - BREAK!', $this->getSeekPosition()));
 				break;
 			} elseif (empty(trim($block, chr(0)))) {
 				// Mark it as empty
-				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, calling this->markCurrentBlockAsEmpty(%d) ...', $this->getSeekPosition(), $length));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, Invoking this->markCurrentBlockAsEmpty(%d) ...', $this->getSeekPosition(), $length));
 				$this->markCurrentBlockAsEmpty($length);
 			}
 
@@ -848,22 +852,22 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 			$data .= $block;
 
 			// Debug message
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,data()=%d', $this->getSeekPosition(), strlen($data)));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d,data()=%d', $this->getSeekPosition(), strlen($data)));
 		}
 
 		/*
 		 * Init back-buffer which is the data that has been found beyond the
 		 * separator.
 		 */
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->initBackBuffer(), clearing this->currentBlock ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->initBackBuffer(), clearing this->currentBlock ...');
 		$this->initBackBuffer();
 		$this->setCurrentBlock('');
 
 		// Is $data empty?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: data(%d)=%s', strlen($data), $data));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: data(%d)=%s', strlen($data), $data));
 		if (empty(trim($data, chr(0)))) {
 			// Yes, maybe whole file was ...
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, maybe empty file found - EXIT!', $this->getSeekPosition()));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: this->seekPosition=%d, maybe empty file found - EXIT!', $this->getSeekPosition()));
 			return;
 		}
 
@@ -871,19 +875,19 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$dataArray = explode(chr(BinaryFile::SEPARATOR_ENTRIES), $data);
 
 		// Left part is the actual block, right one the back-buffer data, if found
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: dataArray()=%d', count($dataArray)));
-		//* PRINTR-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: dataArray=%s', print_r($dataArray, true)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: dataArray()=%d', count($dataArray)));
+		//* PRINTR-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: dataArray=%s', print_r($dataArray, true)));
 		$this->setCurrentBlock($dataArray[0]);
 
 		// Is back buffere data found?
 		if (isset($dataArray[1]) && !empty(trim($dataArray[1], chr(0)))) {
 			// Set back buffer
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Setting this->backBuffer=%s ...', $dataArray[1]));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: Setting this->backBuffer=%s ...', $dataArray[1]));
 			$this->setBackBuffer($dataArray[1]);
 		}
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -892,20 +896,19 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 * @param	$type	Type of the file
 	 * @return	void
 	 * @throws	InvalidArgumentException	If a parameter is empty
-	 * @throws	BadMethodCallException	If this->stackInstance is not properly set
 	 */
 	protected function preAllocateFileByTypeLength (string $type, int $minimumBlockLength) {
 		// Is it enabled?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: type=%s,minimumBlockLength=%d - CALLED!', $type, $minimumBlockLength));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: type=%s,minimumBlockLength=%d - CALLED!', $type, $minimumBlockLength));
 		if (empty($type)) {
 			// Empty type
 			throw new InvalidArgumentException('Parameter "type" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif ($minimumBlockLength < 1) {
 			// Invalid block length
-			throw new InvalidArgumentException(sprintf('Parameter minimumBlockLength=%d is not valid', $minimumBlockLength));
+			throw new InvalidArgumentException(sprintf('Parameter minimumBlockLength=%d is not valid', $minimumBlockLength), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (!FrameworkBootstrap::getConfigurationInstance()->isEnabled($type . '_pre_allocate')) {
 			// Don't continue here.
-			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Not pre-allocating file.'));
+			self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Not pre-allocating file. - EXIT!');
 			return;
 		}
 
@@ -913,31 +916,31 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		$fileSize = $this->getFileSize();
 
 		// Calulcate seek position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: minimumBlockLength=%d,fileSize=%d', $minimumBlockLength, $fileSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: minimumBlockLength=%d,fileSize=%d', $minimumBlockLength, $fileSize));
 		$seekPosition = $this->getHeaderSize() + $minimumBlockLength * FrameworkBootstrap::getConfigurationInstance()->getConfigEntry($type . '_pre_allocate_count') + $fileSize ;
 
 		// Now simply write a NUL there. This will pre-allocate the file.
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->writeAtPosition(%d,NUL) ...', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->writeAtPosition(%d,NUL) ...', $seekPosition));
 		$this->writeAtPosition($seekPosition, chr(0));
 
 		// Is the seek position zero?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: fileSize=%d', $fileSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: fileSize=%d', $fileSize));
 		if ($fileSize == 0) {
 			// Mark file as gaps-only
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: Calling this->markGapsOnly(%s,%d) ...', $type, $minimumBlockLength));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: Invoking this->markGapsOnly(%s,%d) ...', $type, $minimumBlockLength));
 			$this->markFileGapsOnly($type, $minimumBlockLength);
 		} else {
 			// Analyze file structure
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->analyzeFileStructure() ...');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->analyzeFileStructure() ...');
 			$this->analyzeFileStructure();
 		}
 
 		// Rewind seek position
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: Calling this->rewind() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: Invoking this->rewind() ...');
 		$this->rewind();
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-BINARY-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-BINARY-FILE: EXIT!');
 	}
 
 	/**
@@ -949,29 +952,29 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	protected function isValidByLength (int $length) {
 		// Validate parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
 		if ($length < 1) {
 			// Throw IAE
-			throw new InvalidArgumentException(sprintf('Parameter length=%d is not valid', $length));
+			throw new InvalidArgumentException(sprintf('Parameter length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		}
 
 		// Get current seek position
 		$seekPosition = $this->determineSeekPosition();
 
 		// Then try to read it
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d', $seekPosition));
 		$data = $this->read($length);
 
 		// If some bytes could be read, all is fine
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: data[%s]()=%d', gettype($data), strlen($data)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: data[%s]()=%d', gettype($data), strlen($data)));
 		$isValid = ((is_string($data)) && (strlen($data) > 0));
 
 		// Get header size
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: isValid=%d', intval($isValid)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: isValid=%d', intval($isValid)));
 		$headerSize = $this->getHeaderSize();
 
 		// Is the seek position at or beyond the header?
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d,headerSize=%d', $seekPosition, $headerSize));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d,headerSize=%d', $seekPosition, $headerSize));
 		if ($seekPosition >= $headerSize) {
 			// Seek back to old position
 			$isValid = ($isValid && $this->seek($seekPosition) === 0);
@@ -981,7 +984,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 		}
 
 		// Return result
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: isValid=%d - EXIT!', intval($isValid)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: isValid=%d - EXIT!', intval($isValid)));
 		return $isValid;
 	}
 
@@ -1012,10 +1015,10 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 	 */
 	public function searchNextGap (int $length) {
 		// If the file is only gaps, no need to seek
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: length=%d - CALLED!', $length));
 		if ($length <= 0) {
 			// Throw IAE
-			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length));
+			throw new InvalidArgumentException(sprintf('length=%d is not valid', $length), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif ($this->isFileGapsOnly()) {
 			/*
 			 * The first empty block is the 2nd one right after the header, so
@@ -1024,7 +1027,7 @@ abstract class BaseBinaryFile extends BaseAbstractFile implements BinaryFile {
 			$seekPosition = ($this->getHeaderSize() + 2);
 
 			// Return position
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-BINARY-FILE: seekPosition=%d - EXIT!', $seekPosition));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-BINARY-FILE: seekPosition=%d - EXIT!', $seekPosition));
 			return $seekPosition;
 		}
 
diff --git a/framework/main/classes/file_directories/binary/index/class_IndexFile.php b/framework/main/classes/file_directories/binary/index/class_IndexFile.php
index df36ffbd..28ca8b1b 100644
--- a/framework/main/classes/file_directories/binary/index/class_IndexFile.php
+++ b/framework/main/classes/file_directories/binary/index/class_IndexFile.php
@@ -58,7 +58,7 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	public final static function createIndexFile (SplFileInfo $fileInfoInstance, Indexable $indexInstance) {
 		// Get a new instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: fileInfoInstance[%s]=%s,indexInstance=%s - CALLED!', get_class($fileInfoInstance), $fileInfoInstance, $indexInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: fileInfoInstance[%s]=%s,indexInstance=%s - CALLED!', get_class($fileInfoInstance), $fileInfoInstance, $indexInstance->__toString()));
 		$indexFileInstance = new IndexFile();
 
 		// Set file instance here for callbacks
@@ -74,7 +74,7 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 		$indexFileInstance->initCountersGapsArray();
 
 		// Return the prepared instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: indexFileInstance=%s - EXIT!', $indexFileInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: indexFileInstance=%s - EXIT!', $indexFileInstance->__toString()));
 		return $indexFileInstance;
 	}
 
@@ -86,18 +86,18 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	public function flushFileHeader () {
 		// Validate call
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: CALLED!');
 		if (!($this->getIndexInstance() instanceof Indexable)) {
 			// Index instance not set
 			throw new BadMethodCallException('this->indexInstance[] is not properly set.');
 		}
 
 		// Call block instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: Invoking this->indexInstance->flushFileHeader() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('INDEX-FILE: Invoking this->indexInstance->flushFileHeader() ...');
 		$this->getIndexInstance()->flushFileHeader();
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: EXIT!');
 	}
 
 	/**
@@ -110,7 +110,7 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	public function preAllocateFile (string $type) {
 		// Is it enabled?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: type=%s - CALLED!', $type));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: type=%s - CALLED!', $type));
 		if (empty($type)) {
 			// Empty type
 			throw new InvalidArgumentException('Parameter "type" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -120,17 +120,17 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 		}
 
 		// Message to user
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: Pre-allocating file ...');
+		self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('INDEX-FILE: Pre-allocating file ...');
 
 		// Calculate minimum block length
 		$minimumBlockLength = $this->getIndexInstance()->calculateMinimumBlockLength();
 
 		// Call protected method
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: Invoking this->preAllocateFileByTypeLength(%s,%d) ...', $type, $minimumBlockLength));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: Invoking this->preAllocateFileByTypeLength(%s,%d) ...', $type, $minimumBlockLength));
 		$this->preAllocateFileByTypeLength($type, $minimumBlockLength);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: EXIT!');
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: EXIT!');
 	}
 
 	/**
@@ -142,22 +142,22 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	public function isValid () {
 		// Validate call
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: CALLED!');
 		if (!($this->getIndexInstance() instanceof Indexable)) {
 			// Index instance not set
 			throw new BadMethodCallException('this->indexInstance[] is not properly set.');
 		}
 
 		// Get length from index
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: Invoking this->indexInstance->calculateMinimumBlockLength() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: Invoking this->indexInstance->calculateMinimumBlockLength() ...');
 		$length = $this->getIndexInstance()->calculateMinimumBlockLength();
 
 		// Call protected method
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: Invoking this->isValidByLength(%d) ...', $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: Invoking this->isValidByLength(%d) ...', $length));
 		$isValid = $this->isValidByLength($length);
 
 		// Return result
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: isValid=%d - EXIT!', intval($isValid)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: isValid=%d - EXIT!', intval($isValid)));
 		return $isValid;
 	}
 
@@ -170,15 +170,15 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	protected function readNextBlock () {
 		// First calculate minimum block length
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: this->seekPosition=%d - CALLED!', $this->getSeekPosition()));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: this->seekPosition=%d - CALLED!', $this->getSeekPosition()));
 		$length = $this->getIndexInstance()->calculateMinimumBlockLength();
 
 		// Call protected method
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: Invoking parent::readNextBlockByLength(%d) ...', $length));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: Invoking parent::readNextBlockByLength(%d) ...', $length));
 		parent::readNextBlockByLength($length);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: EXIT!');
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: EXIT!');
 	}
 
 	/**
@@ -188,11 +188,11 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	public function readFileHeader () {
 		// Call index class' method
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: Invoking this->indexInstance->readIndexHeader() - CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: Invoking this->indexInstance->readIndexHeader() - CALLED!');
 		$this->getIndexInstance()->readIndexHeader();
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: EXIT!');
 	}
 
 	/**
@@ -206,7 +206,7 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 */
 	public function writeValueToFile (string $stackName, $value) {
 		// Validate parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: stackName=%s,value[]=%s - CALLED!', $stackName, gettype($value)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('INDEX-FILE: stackName=%s,value[]=%s - CALLED!', $stackName, gettype($value)));
 		if (empty($stackName)) {
 			// Throw IAE
 			throw new InvalidArgumentException('Parameter "stackName" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -219,19 +219,19 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 		}
 
 		// Encode/convert the value into a "binary format"
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: Invoking StringUtils::encodeData(value[]=%s) ...', gettype($value)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: Invoking StringUtils::encodeData(value[]=%s) ...', gettype($value)));
 		$encoded = StringUtils::encodeData($value);
 
 		// Get a strong hash for the "encoded" data
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: encoded(%d)=%s', strlen($encoded), $encoded));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('INDEX-FILE: encoded(%d)=%s', strlen($encoded), $encoded));
 		$hash = CryptoUtils::hash($encoded);
 
 		// Then write it to the next free gap
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: hash=%s', $hash));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('INDEX-FILE: hash=%s', $hash));
 		$data = $this->getIndexInstance()->writeDataToFreeGap($stackName, $hash, $encoded);
 
 		// Return info
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('INDEX-FILE: data[]=%s - EXIT!', gettype($data)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('INDEX-FILE: data[]=%s - EXIT!', gettype($data)));
 		return $data;
 	}
 
@@ -245,7 +245,7 @@ class IndexFile extends BaseBinaryFile implements IndexableFile {
 	 * @throws	UnsupportedOperationException	If this method is called
 	 */
 	public function writeDataToFreeGap (string $stackName, string $hash, string $encoded) {
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('INDEX-FILE: stackName=' . $stackName . ',hash=' . $hash . ',encoded()=' . strlen($encoded));
+		self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('INDEX-FILE: stackName=' . $stackName . ',hash=' . $hash . ',encoded()=' . strlen($encoded));
 		throw new UnsupportedOperationException([$this, __FUNCTION__], FrameworkInterface::EXCEPTION_UNSPPORTED_OPERATION);
 	}
 
diff --git a/framework/main/classes/file_directories/binary/stack/class_StackFile.php b/framework/main/classes/file_directories/binary/stack/class_StackFile.php
index b3f27e4b..4f3c5b5e 100644
--- a/framework/main/classes/file_directories/binary/stack/class_StackFile.php
+++ b/framework/main/classes/file_directories/binary/stack/class_StackFile.php
@@ -59,7 +59,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	public final static function createStackFile (SplFileInfo $infoInstance, StackableFile $stackInstance) {
 		// Get a new instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: infoInstance[%s]=%s,stackInstance=%s - CALLED!', get_class($infoInstance), $infoInstance, $stackInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: infoInstance[%s]=%s,stackInstance=%s - CALLED!', get_class($infoInstance), $infoInstance, $stackInstance->__toString()));
 		$stackFileInstance = new StackFile();
 
 		// Set stack instance here for callbacks
@@ -72,7 +72,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 		$stackFileInstance->initCountersGapsArray();
 
 		// Return the prepared instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: stackFileInstance=%s - EXIT!', $stackFileInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: stackFileInstance=%s - EXIT!', $stackFileInstance->__toString()));
 		return $stackFileInstance;
 	}
 
@@ -84,18 +84,18 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	public function flushFileHeader () {
 		// Validate call
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: CALLED!');
 		if (!($this->getStackInstance() instanceof StackableFIle)) {
 			// Index instance not set
 			throw new BadMethodCallException('this->stackInstance[] is not properly set.');
 		}
 
 		// Call block instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: Invoking this->indexInstance->flushFileHeader() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: Invoking this->indexInstance->flushFileHeader() ...');
 		$this->getStackInstance()->flushFileHeader();
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: EXIT!');
 	}
 
 	/**
@@ -108,7 +108,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	public function preAllocateFile (string $type) {
 		// Is it enabled?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: type=%s - CALLED!', $type));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: type=%s - CALLED!', $type));
 		if (empty($type)) {
 			// Empty type
 			throw new InvalidArgumentException('Parameter "type" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -118,7 +118,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 		}
 
 		// Message to user
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: Pre-allocating file ...');
+		self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('STACK-FILE: Pre-allocating file ...');
 
 		// Calculate minimum block length and get file size
 		$minimumBlockLength = $this->getStackInstance()->calculateMinimumBlockLength();
@@ -127,7 +127,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 		$this->preAllocateFileByTypeLength($type, $minimumBlockLength);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: EXIT!');
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: EXIT!');
 	}
 
 	/**
@@ -139,22 +139,22 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	public function isValid () {
 		// Validate call
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: CALLED!');
 		if (!($this->getStackInstance() instanceof StackableFile)) {
 			// Index instance not set
 			throw new BadMethodCallException('this->stackInstance[] is not properly set.');
 		}
 
 		// Get length from index
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: Invoking this->stackInstance->calculateMinimumBlockLength() ...');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: Invoking this->stackInstance->calculateMinimumBlockLength() ...');
 		$length = $this->getStackInstance()->calculateMinimumBlockLength();
 
 		// Call protected method
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: Invoking this->isValidByLength(%d) ...', $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('STACK-FILE: Invoking this->isValidByLength(%d) ...', $length));
 		$isValid = $this->isValidByLength($length);
 
 		// Return result
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: isValid=%d - EXIT!', intval($isValid)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: isValid=%d - EXIT!', intval($isValid)));
 		return $isValid;
 	}
 
@@ -166,11 +166,11 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	public function readFileHeader () {
 		// Call stacke instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: Invoking this->stackInstance->readStackHeader() - CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: Invoking this->stackInstance->readStackHeader() - CALLED!');
 		$this->getStackInstance()->readStackHeader();
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: EXIT!');
 	}
 
 	/**
@@ -182,15 +182,15 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	protected function readNextBlock () {
 		// First calculate minimum block length
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: this->seekPosition=%d - CALLED!', $this->getSeekPosition()));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: this->seekPosition=%d - CALLED!', $this->getSeekPosition()));
 		$length = $this->getStackInstance()->calculateMinimumBlockLength();
 
 		// Call protected method
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: Invoking parent::readNextBlockByLength(%d) ...', $length));
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: Invoking parent::readNextBlockByLength(%d) ...', $length));
 		parent::readNextBlockByLength($length);
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: EXIT!');
+		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: EXIT!');
 	}
 
 	/**
@@ -203,7 +203,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 */
 	public function writeValueToFile (string $stackName, $value) {
 		// Validate parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: stackName=%s,value[]=%s - CALLED!', $stackName, gettype($value)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: stackName=%s,value[]=%s - CALLED!', $stackName, gettype($value)));
 		if (empty($stackName)) {
 			// Throw IAE
 			throw new InvalidArgumentException('Parameter "stackName" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -213,19 +213,19 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 		}
 
 		// Encode/convert the value into a "binary format"
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: Invoking StringUtils::encodeData(value[]=%s) ...', gettype($value)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: Invoking StringUtils::encodeData(value[]=%s) ...', gettype($value)));
 		$encoded = StringUtils::encodeData($value);
 
 		// Get a strong hash for the "encoded" data
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: Invoking CryptoUtils::hash(%s) ...', $encoded));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: Invoking CryptoUtils::hash(%s) ...', $encoded));
 		$hash = CryptoUtils::hash($encoded);
 
 		// Then write it to the next free gap
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: Invoking this->stackInstance->writeDataToFreeGap(%s,%s,%s) ...', $stackName, $hash, $encoded));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: Invoking this->stackInstance->writeDataToFreeGap(%s,%s,%s) ...', $stackName, $hash, $encoded));
 		$data = $this->getStackInstance()->writeDataToFreeGap($stackName, $hash, $encoded);
 
 		// Return info
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('STACK-FILE: data[]=%s - EXIT!', gettype($data)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('STACK-FILE: data[]=%s - EXIT!', gettype($data)));
 		return $data;
 	}
 
@@ -239,7 +239,7 @@ class StackFile extends BaseBinaryFile implements FileStacker {
 	 * @throws	UnsupportedOperationException	If this method is called
 	 */
 	public function writeDataToFreeGap (string $stackName, string $hash, string $encoded) {
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('STACK-FILE: stackName=' . $stackName . ',hash=' . $hash . ',encoded()=' . strlen($encoded));
+		self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('STACK-FILE: stackName=' . $stackName . ',hash=' . $hash . ',encoded()=' . strlen($encoded));
 		throw new UnsupportedOperationException([$this, __FUNCTION__], FrameworkInterface::EXCEPTION_UNSPPORTED_OPERATION);
 	}
 
diff --git a/framework/main/classes/file_directories/class_BaseAbstractFile.php b/framework/main/classes/file_directories/class_BaseAbstractFile.php
index f80e39e3..2e0aefe4 100644
--- a/framework/main/classes/file_directories/class_BaseAbstractFile.php
+++ b/framework/main/classes/file_directories/class_BaseAbstractFile.php
@@ -5,9 +5,13 @@ namespace Org\Mxchange\CoreFramework\Filesystem\File;
 // Import framework stuff
 use Org\Mxchange\CoreFramework\Filesystem\CloseableFile;
 use Org\Mxchange\CoreFramework\Filesystem\FilePointer;
+use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
 use Org\Mxchange\CoreFramework\Generic\UnsupportedOperationException;
 use Org\Mxchange\CoreFramework\Object\BaseFrameworkSystem;
 
+// Import SPL stuff
+use \InvalidArgumentException;
+
 /**
  * An abstract file class
  *
@@ -49,7 +53,11 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	protected function __construct (string $className) {
 		// Call parent constructor
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-ABSTRACT-FILE: className=%s - CONSTRUCTED!', $className));
 		parent::__construct($className);
+
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: EXIT!');
 	}
 
 	/**
@@ -84,7 +92,11 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	protected final function unsetPointerInstance () {
 		// Simply invoke setter with no parameter
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		$this->setPointerInstance();
+
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: EXIT!');
 	}
 
 	/**
@@ -94,10 +106,14 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public final function __destruct() {
 		// Try to close a file
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: DESTRUCTED!');
 		$this->closeFile();
 
 		// Call the parent destructor
 		parent::__destruct();
+
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: EXIT!');
 	}
 
 	/**
@@ -107,6 +123,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public function getFileSize () {
 		// Call pointer instanze
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		return $this->getPointerInstance()->getFileSize();
 	}
 
@@ -117,7 +134,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public final function getCounter () {
 		// Get it
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-ABSTRACT-FILE: Getting this->totalEntries=%d ... - CALLED!', $this->totalEntries));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-ABSTRACT-FILE: Getting this->totalEntries=%d ... - CALLED!', $this->totalEntries));
 		return $this->totalEntries;
 	}
 
@@ -129,7 +146,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	protected final function setCounter (int $counter) {
 		// Set it
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-ABSTRACT-FILE: Setting this->totalEntries=%d ... - CALLED!', $counter));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-ABSTRACT-FILE: Setting this->totalEntries=%d ... - CALLED!', $counter));
 		$this->totalEntries = $counter;
 	}
 
@@ -139,12 +156,12 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 * @return	void
 	 */
 	protected final function incrementCounter () {
-		// Get it
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-ABSTRACT-FILE: CALLED!');
+		// Count up
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		$this->totalEntries++;
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-ABSTRACT-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: EXIT!');
 	}
 
 	/**
@@ -153,6 +170,8 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 * @return	$fileObject		An instance of a SplFileObject
 	 */
 	public final function getFileObject () {
+		// Call pointer instanze
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		return $this->getPointerInstance()->getFileObject();
 	}
 
@@ -161,6 +180,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public final function getFilename () {
 		// Invole file object's method
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		return $this->getFileObject()->getFilename();
 	}
 
@@ -172,11 +192,11 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public function closeFile () {
 		// Close down pointer instance as well by unsetting it
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-ABSTRACT-FILE: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		$this->unsetPointerInstance();
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('BASE-ABSTRACT-FILE: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: EXIT!');
 	}
 
 	/**
@@ -187,6 +207,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public function size () {
 		// Call pointer instance
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		return $this->getPointerInstance()->size();
 	}
 
@@ -200,6 +221,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public function readFromFile () {
 		// Call pointer instance
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		return $this->getPointerInstance()->readFromFile();
 	}
 
@@ -214,6 +236,13 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 *											an invalid file resource
 	 */
 	public function writeToFile (string $dataStream) {
+		// Check parameter
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-ABSTRACT-FILE: dataStream()=%d - CALLED!', strlen($dataStream)));
+		if (empty($dataStream)) {
+			// Throw IAE
+			throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
+
 		// Call pointer instance
 		return $this->getPointerInstance()->writeToFile($dataStream);
 	}
@@ -225,6 +254,7 @@ abstract class BaseAbstractFile extends BaseFrameworkSystem implements FilePoint
 	 */
 	public final function isEndOfFileReached () {
 		// Call pointer instance
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('BASE-ABSTRACT-FILE: CALLED!');
 		return $this->getPointerInstance()->isEndOfFileReached();
 	}
 
diff --git a/framework/main/classes/file_directories/class_BaseFileIo.php b/framework/main/classes/file_directories/class_BaseFileIo.php
index c934ecb5..d093dda0 100644
--- a/framework/main/classes/file_directories/class_BaseFileIo.php
+++ b/framework/main/classes/file_directories/class_BaseFileIo.php
@@ -90,7 +90,7 @@ abstract class BaseFileIo extends BaseFrameworkSystem implements FilePointer, Cl
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('BASE-FILE-IO: fileName=%s - CALLED!', $this->getFileObject()->getPathname()));
 		if (is_null($this->getFileObject())) {
 			// Pointer not initialized
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		} elseif (!is_object($this->getFileObject())) {
 			// Pointer is not a valid resource!
 			throw new LogicException(sprintf('this->fileObject[]=%s is no object', gettype($this->getFileObject())), FrameworkInterface::EXCEPTION_LOGIC_EXCEPTION);
diff --git a/framework/main/classes/file_directories/directory/class_FrameworkDirectoryPointer.php b/framework/main/classes/file_directories/directory/class_FrameworkDirectoryPointer.php
index 5386a528..f080e328 100644
--- a/framework/main/classes/file_directories/directory/class_FrameworkDirectoryPointer.php
+++ b/framework/main/classes/file_directories/directory/class_FrameworkDirectoryPointer.php
@@ -61,6 +61,7 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 	 */
 	public function __destruct() {
 		// Is there a resource pointer? Then we have to close the directory here!
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FRAMEWORK-DIRECTORY-POINTER: DESTRUCTED!');
 		if ($this->getDirectoryIteratorInstance() instanceof DirectoryIterator) {
 			// Try to close a directory
 			$this->closeDirectory();
@@ -68,6 +69,9 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 
 		// Call the parent destructor
 		parent::__destruct();
+
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FRAMEWORK-DIRECTORY-POINTER: EXIT!');
 	}
 
 	/**
@@ -83,6 +87,7 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 	 */
 	public static final function createFrameworkDirectoryPointer (string $pathName) {
 		// Some pre-sanity checks...
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FRAMEWORK-DIRECTORY-POINTER: pathName=%s - CALLED!', $pathName));
 		if (empty($pathName)) {
 			// Throw IAE
 			throw new InvalidArgumentException('Parameter "pathName" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -108,7 +113,7 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 		$pointerInstance->setPathName($pathName);
 
 		// Return the instance
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('DIRECTORY-POINTER: Opened pathName=' . $pathName . ' - EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('DIRECTORY-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
 		return $pointerInstance;
 	}
 
@@ -119,14 +124,14 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 	 */
 	public function readRawDirectory () {
 		// Can the next entry be read?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('DIRECTORY-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('DIRECTORY-POINTER: CALLED!');
 		assert($this->getDirectoryIteratorInstance()->valid());
 
 		// Read data from the directory pointer and return it
 		$currentEntry = $this->getDirectoryIteratorInstance()->current();
 
 		// Return found entry
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('DIRECTORY-POINTER: currentEntry[%s]=%s - EXIT!', gettype($currentEntry), $currentEntry));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('DIRECTORY-POINTER: currentEntry[%s]=%s - EXIT!', gettype($currentEntry), $currentEntry));
 		return $currentEntry;
 	}
 
@@ -135,17 +140,17 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 	 *
 	 * @param	$except		Some parts of a directory we want to ignore. Valid: directory and file names, other values will be silently ignored
 	 * @return	SplFileInfo		An instance of a SplFileInfo class
+	 * @throws	InvalidArgumentException	If a parameter has an invalid value
 	 */
 	public function readDirectoryExcept (array $except = []) {
 		// No exceptions given?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('DIRECTORY-POINTER: except()=%d - CALLED!', count($except)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('DIRECTORY-POINTER: except()=%d - CALLED!', count($except)));
 		if (count($except) == 0) {
 			// No exception given, so read all files and directories, but not recursive
-			self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('DIRECTORY-POINTER: No exceptions given, please use readRawDirectory() instead!');
-			return $this->readRawDirectory();
+			throw new InvalidArgumentException('Parameter "except" is an empty array', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (!$this->getDirectoryIteratorInstance()->valid()) {
 			// No more left to read
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('DIRECTORY-POINTER: EOD reached - EXIT!');
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('DIRECTORY-POINTER: EOD reached - EXIT!');
 			return NULL;
 		}
 
@@ -156,26 +161,26 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 		$currentEntry = $this->readRawDirectory();
 
 		// Shall we exclude directories?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('DIRECTORY-POINTER: currentEntry[]=%s', gettype($currentEntry)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('DIRECTORY-POINTER: currentEntry[]=%s', gettype($currentEntry)));
 		if (is_object($currentEntry)) {
 			// Get file name
 			$fileInfoInstance = $currentEntry;
 
 			// Is it a dot-directory or excluded?
-			//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('DIRECTORY-POINTER: fileInfoInstance->filename=%s,isDot=%d', $fileInfoInstance->getFilename(), intval($this->getDirectoryIteratorInstance()->isDot())));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('DIRECTORY-POINTER: fileInfoInstance->filename=%s,isDot=%d', $fileInfoInstance->getFilename(), intval($this->getDirectoryIteratorInstance()->isDot())));
 			while ($this->getDirectoryIteratorInstance()->valid() && ($this->getDirectoryIteratorInstance()->isDot() || in_array($fileInfoInstance->getFilename(), $except))) {
 				// Update current instance
-				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('DIRECTORY-POINTER: fileInfoInstance->filename=%s,isDot=%d', $fileInfoInstance->getFilename(), intval($this->getDirectoryIteratorInstance()->isDot())));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('DIRECTORY-POINTER: fileInfoInstance->filename=%s,isDot=%d', $fileInfoInstance->getFilename(), intval($this->getDirectoryIteratorInstance()->isDot())));
 				$fileInfoInstance = $this->readRawDirectory();
 
 				// To next entry
-				//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('DIRECTORY-POINTER: Invoking directoryIteratorInstance->next() ...');
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('DIRECTORY-POINTER: Invoking directoryIteratorInstance->next() ...');
 				$this->getDirectoryIteratorInstance()->next();
 			}
 		}
 
 		// Return read line
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('DIRECTORY-POINTER: fileInfoInstance[%s]=%s - EXIT!', gettype($fileInfoInstance), $fileInfoInstance));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('DIRECTORY-POINTER: fileInfoInstance[%s]=%s - EXIT!', gettype($fileInfoInstance), $fileInfoInstance));
 		return $fileInfoInstance;
 	}
 
@@ -187,9 +192,12 @@ class FrameworkDirectoryPointer extends BaseFrameworkSystem implements Framework
 	 */
 	public function closeDirectory () {
 		// Close the directory by unsetting it
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('DIRECTORY-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('DIRECTORY-POINTER: CALLED!');
 		$this->unsetDirectoryIteratorInstance();
 		$this->setPathName('');
+
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('DIRECTORY-POINTER: CALLED!');
 	}
 
 	/**
diff --git a/framework/main/classes/file_directories/input/raw/class_FrameworkRawFileInputPointer.php b/framework/main/classes/file_directories/input/raw/class_FrameworkRawFileInputPointer.php
index 71eed4d4..4ba33c57 100644
--- a/framework/main/classes/file_directories/input/raw/class_FrameworkRawFileInputPointer.php
+++ b/framework/main/classes/file_directories/input/raw/class_FrameworkRawFileInputPointer.php
@@ -65,7 +65,7 @@ class FrameworkRawFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public static final function createFrameworkRawFileInputPointer (SplFileInfo $fileInstance) {
 		// Some pre-sanity checks...
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: fileInstance[%s]=%s - CALLED!', get_class($fileInstance), $fileInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: fileInstance[%s]=%s - CALLED!', get_class($fileInstance), $fileInstance->__toString()));
 		if (!FrameworkBootstrap::isReachableFilePath($fileInstance)) {
 			// File cannot be accessed (due to open_basedir restriction)
 			throw new FileIoException($fileInstance, self::EXCEPTION_FILE_NOT_REACHABLE);
@@ -81,21 +81,21 @@ class FrameworkRawFileInputPointer extends BaseFileIo implements InputPointer {
 		$fileObject = $fileInstance->openFile('rb');
 
 		// Is it valid?
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: fileObject[]=%s', gettype($fileObject)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('RAW-FILE-INPUT-POINTER: fileObject[]=%s', gettype($fileObject)));
 		if (!($fileObject instanceof SplFileObject)) {
 			// Something bad happend
 			throw new FileIoException($fileInstance, self::EXCEPTION_FILE_POINTER_INVALID);
 		}
 
 		// Create new instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: fileObject.pathname=%s', $fileObject->getPathname()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('RAW-FILE-INPUT-POINTER: fileObject.pathname=%s', $fileObject->getPathname()));
 		$pointerInstance = new FrameworkRawFileInputPointer();
 
 		// Set file pointer and file name
 		$pointerInstance->setFileObject($fileObject);
 
 		// Return the instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
 		return $pointerInstance;
 	}
 
@@ -108,17 +108,17 @@ class FrameworkRawFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public function readFromFile () {
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('RAW-FILE-INPUT-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('RAW-FILE-INPUT-POINTER: CALLED!');
 		if (is_null($this->getFileObject())) {
 			// Pointer not initialized
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		} elseif (!is_object($this->getFileObject())) {
 			// Pointer is not a valid resource!
 			throw new LogicException(sprintf('this->fileObject[]=%s is no object', gettype($this->getFileObject())), FrameworkInterface::EXCEPTION_LOGIC_EXCEPTION);
 		}
 
 		// Read data from the file pointer and return it
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('RAW-FILE-INPUT-POINTER: Invoking this->read(1024) - EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('RAW-FILE-INPUT-POINTER: Invoking this->read(1024) - EXIT!');
 		return $this->read(1024);
 	}
 
@@ -143,7 +143,7 @@ class FrameworkRawFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public function read (int $bytes = 0) {
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: bytes=%d - CALLED!', $bytes));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: bytes=%d - CALLED!', $bytes));
 		if ($bytes < 0) {
 			// Throw IAE
 			throw new InvalidArgumentException(sprintf('bytes=%d is an invalid value, only zero or postive numbers are accepted', $bytes));
@@ -159,7 +159,7 @@ class FrameworkRawFileInputPointer extends BaseFileIo implements InputPointer {
 		}
 
 		// Then return it
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: data()=%d - EXIT!', strlen($data)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: data()=%d - EXIT!', strlen($data)));
 		return $data;
 	}
 
diff --git a/framework/main/classes/file_directories/input/text/class_FrameworkTextFileInputPointer.php b/framework/main/classes/file_directories/input/text/class_FrameworkTextFileInputPointer.php
index d113df5d..1805d7c8 100644
--- a/framework/main/classes/file_directories/input/text/class_FrameworkTextFileInputPointer.php
+++ b/framework/main/classes/file_directories/input/text/class_FrameworkTextFileInputPointer.php
@@ -62,7 +62,7 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public static final function createFrameworkTextFileInputPointer (SplFileInfo $fileInstance) {
 		// Check parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-INPUT-POINTER: fileInstance[%s]=%s - CALLED!', get_class($fileInstance), $fileInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: fileInstance[%s]=%s - CALLED!', get_class($fileInstance), $fileInstance->__toString()));
 		if (!FrameworkBootstrap::isReachableFilePath($fileInstance)) {
 			// File cannot be reached
 			throw new FileIoException($fileInstance, self::EXCEPTION_FILE_NOT_REACHABLE);
@@ -78,7 +78,7 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 		$fileObject = $fileInstance->openFile('r');
 
 		// Is it valid?
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('TEXT-FILE-INPUT-POINTER: fileObject[]=%s', gettype($fileObject)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('TEXT-FILE-INPUT-POINTER: fileObject[]=%s', gettype($fileObject)));
 		if (!($fileObject instanceof SplFileObject)) {
 			// Something bad happend
 			throw new FileIoException($fileInstance, self::EXCEPTION_FILE_POINTER_INVALID);
@@ -91,7 +91,7 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 		$pointerInstance->setFileObject($fileObject);
 
 		// Return the instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('TEXT-FILE-INPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('TEXT-FILE-INPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
 		return $pointerInstance;
 	}
 
@@ -102,6 +102,7 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public function readFromFile () {
 		// Read 1024 Byte data from the file pointer and return it
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('RAW-FILE-INPUT-POINTER: CALLED!');
 		return $this->read(1024);
 	}
 
@@ -112,6 +113,7 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public function readLine () {
 		// Read whole line from the file pointer and return it
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('RAW-FILE-INPUT-POINTER: CALLED!');
 		return $this->read();
 	}
 
@@ -126,12 +128,13 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 	 */
 	public function read (int $bytes = 0) {
 		// Some sanity checks
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: bytes=%d - CALLED!', $bytes));
 		if ($bytes < 0) {
 			// Cannot be below zero
 			throw new OutOfBoundsException(sprintf('bytes=%d is not valid', $bytes));
 		} elseif (is_null($this->getFileObject())) {
 			// Pointer not initialized
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		} elseif (!is_object($this->getFileObject())) {
 			// Pointer is not a valid resource!
 			throw new LogicException(sprintf('this->fileObject[]=%s is no object', gettype($this->getFileObject())), FrameworkInterface::EXCEPTION_LOGIC_EXCEPTION);
@@ -140,13 +143,16 @@ class FrameworkTextFileInputPointer extends BaseFileIo implements InputPointer {
 		// Is $bytes set?
 		if ($bytes > 0) {
 			// Try to read given characters
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: Invoking this->fileObject->fread(%d) ...', $bytes));
 			$data = $this->getFileObject()->fread($bytes);
 		} else {
 			// Try to read whole line
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('RAW-FILE-INPUT-POINTER: Invoking this->fileObject->fgets() ...');
 			$data = $this->getFileObject()->fgets();
 		}
 
 		// Then return it
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-INPUT-POINTER: data()=%d - EXIT!', strlen($data)));
 		return $data;
 	}
 
diff --git a/framework/main/classes/file_directories/io/class_FrameworkFileInputOutputPointer.php b/framework/main/classes/file_directories/io/class_FrameworkFileInputOutputPointer.php
index ed4c49e1..2a03a011 100644
--- a/framework/main/classes/file_directories/io/class_FrameworkFileInputOutputPointer.php
+++ b/framework/main/classes/file_directories/io/class_FrameworkFileInputOutputPointer.php
@@ -67,7 +67,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public static final function createFrameworkFileInputOutputPointer (SplFileInfo $fileInstance) {
 		// Some pre-sanity checks...
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: fileInstance[%s]=%s - CALLED!', get_class($fileInstance), $fileInstance));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: fileInstance[%s]=%s - CALLED!', get_class($fileInstance), $fileInstance));
 		if (!FrameworkBootstrap::isReachableFilePath($fileInstance)) {
 			// File exists but cannot be read
 			throw new FileIoException($fileInstance, self::EXCEPTION_FILE_NOT_REACHABLE);
@@ -86,7 +86,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		$fileObject = $fileInstance->openFile('c+b');
 
 		// Is it valid?
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: fileObject[]=%s', gettype($fileObject)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: fileObject[]=%s', gettype($fileObject)));
 		if (!($fileObject instanceof SplFileObject)) {
 			// Something bad happend
 			throw new FileIoException($fileInstance->getPathname(), self::EXCEPTION_FILE_POINTER_INVALID);
@@ -99,7 +99,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		$pointerInstance->setFileObject($fileObject);
 
 		// Return the instance
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
 		return $pointerInstance;
 	}
 
@@ -110,11 +110,11 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function readFromFile () {
 		// Read data from the file pointer and return it
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-INPUT-OUTPUT-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-INPUT-OUTPUT-POINTER: CALLED!');
 		$data = $this->read(1024);
 
 		// Return data
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: data[%s]=%d - EXIT!', gettype($data), $data));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: data[%s]=%d - EXIT!', gettype($data), $data));
 		return $data;
 	}
 
@@ -126,7 +126,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function writeToFile (string $dataStream) {
 		// Validate parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: dataStream(%d)=%s - CALLED!', strlen($dataStream), $dataStream));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: dataStream(%d)=%s - CALLED!', strlen($dataStream), $dataStream));
 		if (empty($dataStream)) {
 			// Empty dataStream
 			throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
@@ -136,11 +136,11 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		$length = strlen($dataStream);
 
 		// Write data to the file pointer and return written bytes
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: Invoking this->fileObject->fwrite(%s,%d) ...', $dataStream, $length));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: Invoking this->fileObject->fwrite(%s,%d) ...', $dataStream, $length));
 		$status = $this->getFileObject()->fwrite($dataStream, $length);
 
 		// Return status
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: status[%s]=%d - EXIT!', gettype($status), $status));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: status[%s]=%d - EXIT!', gettype($status), $status));
 		return $status;
 	}
 
@@ -155,7 +155,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function writeAtPosition (int $seekPosition, string $dataStream) {
 		// Validate parameter
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: seekPosition=%d,dataStream(%d)=%s - CALLED!', $seekPosition, strlen($dataStream), $dataStream));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: seekPosition=%d,dataStream(%d)=%s - CALLED!', $seekPosition, strlen($dataStream), $dataStream));
 		if ($seekPosition < 0) {
 			// Invalid seek position
 			throw new OutOfBoundsException(sprintf('seekPosition=%d is not valid.', $seekPosition));
@@ -168,11 +168,11 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		}
 
 		// Then write the data at that position
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: Invoking this->writeToFile(%s) ...', $dataStream));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: Invoking this->writeToFile(%s) ...', $dataStream));
 		$status = $this->writeToFile($dataStream);
 
 		// Return status
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: status[%s]=%d - EXIT!', gettype($status), $status));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: status[%s]=%d - EXIT!', gettype($status), $status));
 		return $status;
 	}
 
@@ -183,11 +183,11 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function rewind () {
 		/// Rewind the pointer
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-INPUT-OUTPUT-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-INPUT-OUTPUT-POINTER: CALLED!');
 		$this->getFileObject()->rewind();
 
 		// Trace message
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-INPUT-OUTPUT-POINTER: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-INPUT-OUTPUT-POINTER: EXIT!');
 	}
 
 	/**
@@ -200,17 +200,20 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function seek (int $seekPosition, int $whence = SEEK_SET) {
 		// Validate parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: seekPosition=%d,whence=%d - CALLED!', $seekPosition, $whence));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: seekPosition=%d,whence=%d - CALLED!', $seekPosition, $whence));
 		if ($seekPosition < 0) {
 			// Invalid seek position
 			throw new OutOfBoundsException(sprintf('seekPosition=%d is not valid.', $seekPosition));
+		} elseif ($whence < 0) {
+			// Invalid seek position
+			throw new OutOfBoundsException(sprintf('whence=%d is not valid.', $whence));
 		}
 
 		// Move the file pointer
 		$status = $this->getFileObject()->fseek($seekPosition, $whence);
 
 		// Return status
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: status[%s]=%d - EXIT!', gettype($status), $status));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: status[%s]=%d - EXIT!', gettype($status), $status));
 		return $status;
 	}
 
@@ -221,11 +224,11 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function readLine () {
 		// Read whole line
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-INPUT-OUTPUT-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-INPUT-OUTPUT-POINTER: CALLED!');
 		$data = $this->read();
 
 		// Return data
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: data[%s]=%s - EXIT!', gettype($data), $data));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: data[%s]=%s - EXIT!', gettype($data), $data));
 		return $data;
 	}
 
@@ -238,7 +241,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function read (int $bytes = 0) {
 		// Validatre parameter
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: bytes=%d - CALLED!', $bytes));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: bytes=%d - CALLED!', $bytes));
 		if ($bytes < 0) {
 			// Bytes cannot be lesser than zero
 			throw new OutOfBoundsException(sprintf('bytes=%d is not valid', $bytes));
@@ -254,7 +257,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		}
 
 		// Then return it
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: data[%s]=%s - EXIT!', gettype($data), $data));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: data[%s]=%s - EXIT!', gettype($data), $data));
 		return $data;
 	}
 
@@ -309,7 +312,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 	 */
 	public function getFileSize () {
 		// Get file's data
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-INPUT-OUTPUT-POINTER: CALLED!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-INPUT-OUTPUT-POINTER: CALLED!');
 		$fileData = $this->getFileObject()->fstat();
 
 		// Make sure the required array key is there
@@ -319,7 +322,7 @@ class FrameworkFileInputOutputPointer extends BaseFileIo implements InputOutputP
 		}
 
 		// Return size
-		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-INPUT-OUTPUT-POINTER: fileData[size]=%d - EXIT!', $fileData['size']));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-INPUT-OUTPUT-POINTER: fileData[size]=%d - EXIT!', $fileData['size']));
 		return $fileData['size'];
 	}
 
diff --git a/framework/main/classes/file_directories/io_stream/class_FileIoStream.php b/framework/main/classes/file_directories/io_stream/class_FileIoStream.php
index 126ab896..9a82005c 100644
--- a/framework/main/classes/file_directories/io_stream/class_FileIoStream.php
+++ b/framework/main/classes/file_directories/io_stream/class_FileIoStream.php
@@ -77,9 +77,11 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 */
 	public static final function createFileIoStream () {
 		// Create new instance
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-IO-STREAM: CALLED!');
 		$ioInstance = new FileIoStream();
 
 		// Return the instance
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: ioInstance=%s - EXIT!', $ioInstance->__toString()));
 		return $ioInstance;
 	}
 
@@ -95,7 +97,7 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 */
 	public final function saveFile (SplFileInfo $fileInfoInstance, array $dataArray) {
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: fileInfoInstance=%s,dataArray()=%d - CALLED!', $fileInfoInstance, count($dataArray)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: fileInfoInstance=%s,dataArray()=%d - CALLED!', $fileInfoInstance, count($dataArray)));
 		if (count($dataArray) < 2) {
 			// Not valid array, at least 2 elements must be there!
 			throw new InvalidArgumentException(sprintf('Parameter "dataArray" should have at least 2 elements, has %d', count($dataArray)));
@@ -116,7 +118,7 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 		}
 
 		// Write a header information for validation purposes
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Writing header to fileInstance=%s ...', $fileInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Writing header to fileInstance=%s ...', $fileInstance->__toString()));
 		$fileInstance->writeToFile(sprintf('%s%s%s%s%s%s%s%s%s' . PHP_EOL,
 			self::FILE_IO_FILE_HEADER_ID,
 			self::FILE_IO_SEPARATOR,
@@ -130,7 +132,7 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 		));
 
 		// Encode the (maybe) binary stream with Base64
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Encoding %d bytes to BASE64 string ...', strlen($dataArray[1])));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Encoding %d bytes to BASE64 string ...', strlen($dataArray[1])));
 		$b64Stream = base64_encode($dataArray[1]);
 
 		// write the data line-by-line
@@ -140,7 +142,7 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 			$line = substr($b64Stream, $idx, 50);
 
 			// Save it to the stream
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Writing %d bytes to file ...', strlen($line)));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Writing %d bytes to file ...', strlen($line)));
 			$fileInstance->writeToFile(sprintf('%s%s%s%s%s' . PHP_EOL,
 				self::FILE_IO_DATA_BLOCK_ID,
 				self::FILE_IO_SEPARATOR,
@@ -154,10 +156,11 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 		}
 
 		// Close the file
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('FILE-IO-STREAM: Closing file ...');
 		unset($fileInstance);
 
 		// Trace message
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-IO-STREAM: EXIT!');
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-IO-STREAM: EXIT!');
 	}
 
 	/**
@@ -169,7 +172,7 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 */
 	public final function loadFileContents (SplFileInfo $infoInstance) {
 		// Initialize some variables and arrays
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: infoInstance=%s - CALLED!', $infoInstance));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: infoInstance=%s - CALLED!', $infoInstance));
 		$inputBuffer = '';
 		$lastBuffer = '';
 		$header = [];
@@ -180,16 +183,16 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 		$fileInstance = ObjectFactory::createObjectByConfiguredName('file_raw_input_class', array($infoInstance));
 
 		// Read all it's contents (we very and transparently decompress it below)
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: fileInstance=%s', $fileInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: fileInstance=%s', $fileInstance->__toString()));
 		while ($readRawLine = $fileInstance->readFromFile()) {
 			// Add the read line to the buffer
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Adding %d read bytes to input buffer.', strlen($readRawLine)));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Adding %d read bytes to input buffer.', strlen($readRawLine)));
 			$inputBuffer .= $readRawLine;
 
 			// Break infinite loop maybe caused by the input handler
 			if ($lastBuffer == $inputBuffer) {
 				// Break out of loop, EOF reached?
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('FILE-IO-STREAM: EOF reached!');
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('FILE-IO-STREAM: EOF reached!');
 				break;
 			}
 
@@ -198,23 +201,24 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 		}
 
 		// Close directory handle
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage('FILE-IO-STREAM: Closing file ...');
 		unset($fileInstance);
 
 		// Convert it into an array
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Read inputBuffer=%d bytes from infoInstance=%s', strlen($inputBuffer), $infoInstance));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Read inputBuffer=%d bytes from infoInstance=%s', strlen($inputBuffer), $infoInstance));
 		$inputArray = explode(chr(10), $inputBuffer);
 
 		// Now process the read lines and verify it's content
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: inputArray()=%d', count($inputArray)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: inputArray()=%d', count($inputArray)));
 		foreach ($inputArray as $rawLine) {
 			// Trim it a little but not the leading spaces/tab-stops
 			$rawLine = rtrim($rawLine);
 
 			// Analyze this line
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: rawLine()=%d', strlen($rawLine)));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: rawLine()=%d', strlen($rawLine)));
 			if (substr($rawLine, 0, 5) == self::FILE_IO_FILE_HEADER_ID) {
 				// Header found, so let's extract it
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Found header, rawLine=%s', $rawLine));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Found header, rawLine=%s', $rawLine));
 				$header = explode(self::FILE_IO_SEPARATOR, $rawLine);
 				$headerLine = trim($header[1]);
 
@@ -222,14 +226,14 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 				$header = explode(self::FILE_IO_CHUNKER, $headerLine);
 
 				// Is the header (maybe) valid?
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: header()=%d', count($header)));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: header()=%d', count($header)));
 				if (count($header) != 4) {
 					// Throw an exception
-					throw new InvalidArrayCountException(array($this, 'header', count($header), 4), self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
+					throw new InvalidArrayCountException([$this, 'header', count($header), 4], self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
 				}
 			} elseif (substr($rawLine, 0, 5) == self::FILE_IO_DATA_BLOCK_ID) {
 				// Is a data line!
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Data line found rawLine=%s', $rawLine));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Data line found rawLine=%s', $rawLine));
 				$data = explode(self::FILE_IO_SEPARATOR, $rawLine);
 				$dataLine = $data[1];
 
@@ -237,68 +241,69 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 				$data = explode(self::FILE_IO_CHUNKER, $dataLine);
 
 				// Validate the read line
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: data()=%d', count($data)));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: data()=%d', count($data)));
 				if (count($data) == 2) {
 					// Generate checksum (MD5 is okay here)
 					$checksum = md5($data[0]);
 
 					// Check if it matches provided one
-					/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: checksum=%s,data[1]=%s', $checksum, $data[1]));
+					/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: checksum=%s,data[1]=%s', $checksum, $data[1]));
 					if ($checksum != $data[1]) {
 						// MD5 hash did not match!
-						throw new InvalidMD5ChecksumException(array($this, $checksum, $data[1]), self::EXCEPTION_MD5_CHECKSUMS_MISMATCH);
+						throw new InvalidMD5ChecksumException([$this, $checksum, $data[1]], self::EXCEPTION_MD5_CHECKSUMS_MISMATCH);
 					}
 				} else {
 					// Invalid count!
-					throw new InvalidArrayCountException(array($this, 'data', count($data), 2), self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
+					throw new InvalidArrayCountException([$this, 'data', count($data), 2], self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
 				}
 
 				// Add this to the readData string
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Adding %d raw data to input stream', strlen($data[0])));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Adding %d raw data to input stream', strlen($data[0])));
 				$readData .= $data[0];
 			} else {
 				// Other raw lines than header/data tagged lines and re-add the new-line char
-				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: Adding rawLine=%s(%d) + PHP_EOL to input stream', $rawLine, strlen($rawLine)));
+				/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: Adding rawLine=%s(%d) + PHP_EOL to input stream', $rawLine, strlen($rawLine)));
 				$readData .= $rawLine . PHP_EOL;
 			}
 		}
 
 		// Was raw lines read and no header/data?
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: readData()=%d,header()=%d,data()=%d', strlen($readData), count($header), count($data)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: readData()=%d,header()=%d,data()=%d', strlen($readData), count($header), count($data)));
 		if ((!empty($readData)) && (count($header) == 0) && (count($data) == 0)) {
 			// Return raw lines back
-			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: readData()=%d - EXIT!', strlen($readData)));
+			/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: readData()=%d - EXIT!', strlen($readData)));
 			return $readData;
 		}
 
 		// Was a header found?
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: header()=%d', count($header)));
 		if (count($header) != 4) {
 			// Throw an exception
-			throw new InvalidArrayCountException(array($this, 'header', count($header), 4), self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
+			throw new InvalidArrayCountException([$this, 'header', count($header), 4], self::EXCEPTION_ARRAY_HAS_INVALID_COUNT);
 		}
 
 		// Decode all from Base64
 		$decodedData = @base64_decode($readData);
 
 		// Does the size match?
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: decodedData()=%d,header[2]=%d', strlen($decodedData), $header[2]));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: decodedData()=%d,header[2]=%d', strlen($decodedData), $header[2]));
 		if (strlen($decodedData) != $header[2]) {
 			// Size did not match
-			throw new InvalidDataLengthException(array($this, strlen($decodedData), $header[2]), self::EXCEPTION_UNEXPECTED_STRING_SIZE);
+			throw new InvalidDataLengthException([$this, strlen($decodedData), $header[2]], self::EXCEPTION_UNEXPECTED_STRING_SIZE);
 		}
 
 		// Generate checksum from whole read data
 		$checksum = md5($decodedData);
 
 		// Validate the decoded data with the final MD5 hash
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: checksum=%s,header[3]=%s', $checksum, $header[3]));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('FILE-IO-STREAM: checksum=%s,header[3]=%s', $checksum, $header[3]));
 		if ($checksum != $header[3]) {
 			// MD5 hash did not match!
-			throw new InvalidMD5ChecksumException(array($this, $checksum, $header[3]), self::EXCEPTION_MD5_CHECKSUMS_MISMATCH);
+			throw new InvalidMD5ChecksumException([$this, $checksum, $header[3]], self::EXCEPTION_MD5_CHECKSUMS_MISMATCH);
 		}
 
 		// Return all in an array
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-IO-STREAM: header()=%d,decodedData()=%d - EXIT!', count($header), strlen($decodedData)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: header()=%d,decodedData()=%d - EXIT!', count($header), strlen($decodedData)));
 		return [
 			'header' => $header,
 			'data'   => $decodedData,
@@ -313,7 +318,8 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 * @throws	UnsupportedOperationException	If this method is called
 	 */
 	public function streamData (string $data) {
-		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('Unhandled ' . strlen($data) . ' bytes in this stream.');
+		// Not supported
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: data=()=%d - CALLED!', strlen($data)));
 		throw new UnsupportedOperationException([$this, __FUNCTION__], FrameworkInterface::EXCEPTION_UNSPPORTED_OPERATION);
 	}
 
@@ -324,6 +330,8 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 * @todo	0% done
 	 */
 	public function determineSeekPosition () {
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-IO-STREAM: CALLED!');
 		DebugMiddleware::getSelfInstance()->partialStub();
 	}
 
@@ -335,6 +343,16 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 * @return	$status		Status of file seek: 0 = success, -1 = failed
 	 */
 	public function seek (int $offset, int $whence = SEEK_SET) {
+		// Check parameters
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('FILE-IO-STREAM: offset=%d,whence=%d - CALLED!', $offset, $whence));
+		if ($offset < 0) {
+			// Throw IAE
+			throw new InvalidArgumentException(sprintf('offset=%d is below zero', $offset), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		} elseif ($whence < 0) {
+			// Throw IAE
+			throw new InvalidArgumentException(sprintf('whence=%d is below zero', $whence), FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+		}
+
 		DebugMiddleware::getSelfInstance()->partialStub('offset=' . $offset . ',whence=' . $whence);
 	}
 
@@ -344,6 +362,8 @@ class FileIoStream extends BaseFrameworkSystem implements FileInputStreamer, Fil
 	 * @return	$size	Size (in bytes) of file
 	 */
 	public function size () {
+		// Trace message
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('FILE-IO-STREAM: CALLED!');
 		DebugMiddleware::getSelfInstance()->partialStub();
 	}
 
diff --git a/framework/main/classes/file_directories/output/raw/class_FrameworkRawFileOutputPointer.php b/framework/main/classes/file_directories/output/raw/class_FrameworkRawFileOutputPointer.php
index 61eb1705..6d2c3a26 100644
--- a/framework/main/classes/file_directories/output/raw/class_FrameworkRawFileOutputPointer.php
+++ b/framework/main/classes/file_directories/output/raw/class_FrameworkRawFileOutputPointer.php
@@ -59,14 +59,14 @@ class FrameworkRawFileOutputPointer extends BaseFileIo implements OutputPointer
 	 */
 	public static final function createFrameworkRawFileOutputPointer (SplFileInfo $fileInstance, string $mode) {
 		// Is the parameter valid?
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-OUTPUT-POINTER: fileInstance=%s,mode=%s - CALLED!', $fileInstance->__toString(), $mode));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-OUTPUT-POINTER: fileInstance=%s,mode=%s - CALLED!', $fileInstance->__toString(), $mode));
 		if (empty($mode)) {
 			// No fileInstance given
 			throw new InvalidArgumentException('Parameter "mode" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		}
 
 		// Try to open a handler
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-OUTPUT-POINTER: Invoking fileInstance->openFile(%s) ...', $mode));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-OUTPUT-POINTER: Invoking fileInstance->openFile(%s) ...', $mode));
 		$fileObject = $fileInstance->openFile($mode);
 
 		// Is it valid?
@@ -85,7 +85,7 @@ class FrameworkRawFileOutputPointer extends BaseFileIo implements OutputPointer
 		$pointerInstance->setFileObject($fileObject);
 
 		// Return the instance
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-OUTPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-OUTPUT-POINTER: pointerInstance=%s - EXIT!', $pointerInstance->__toString()));
 		return $pointerInstance;
 	}
 
@@ -100,19 +100,20 @@ class FrameworkRawFileOutputPointer extends BaseFileIo implements OutputPointer
 	 */
 	public function writeToFile (string $dataStream) {
 		// Validate parameter and class own attributes
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('RAW-FILE-OUTPUT-POINTER: dataStream(%d)=%s (trimmed) - CALLED!', strlen($dataStream), trim($dataStream)));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-OUTPUT-POINTER: dataStream(%d)=%s (trimmed) - CALLED!', strlen($dataStream), trim($dataStream)));
 		if (empty($dataStream)) {
 			// Empty data stream
 			throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getFileObject())) {
 			// Pointer not initialized
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		} elseif (!is_object($this->getFileObject())) {
 			// Pointer is not a valid resource!
 			throw new LogicException(sprintf('this->fileObject[]=%s is no object', gettype($this->getFileObject())), FrameworkInterface::EXCEPTION_LOGIC_EXCEPTION);
 		}
 
 		// Write data to the file pointer and return written bytes
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-OUTPUT-POINTER: Invoking this->fileObject->fwrite(dataStream()=%d - EXIT!', strlen($dataStream)));
 		return $this->getFileObject()->fwrite($dataStream);
 	}
 
diff --git a/framework/main/classes/file_directories/output/text/class_FrameworkTextFileOutputPointer.php b/framework/main/classes/file_directories/output/text/class_FrameworkTextFileOutputPointer.php
index bf1657c4..f6587257 100644
--- a/framework/main/classes/file_directories/output/text/class_FrameworkTextFileOutputPointer.php
+++ b/framework/main/classes/file_directories/output/text/class_FrameworkTextFileOutputPointer.php
@@ -103,7 +103,7 @@ class FrameworkTextFileOutputPointer extends BaseFileIo implements OutputPointer
 			throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getFileObject())) {
 			// Pointer not initialized
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		} elseif (!is_object($this->getFileObject())) {
 			// Pointer is not a valid object!
 			throw new LogicException(sprintf('this->fileObject[]=%s is no object', gettype($this->getFileObject())), FrameworkInterface::EXCEPTION_LOGIC_EXCEPTION);
diff --git a/framework/main/classes/filter/payment/class_PaymentDiscoveryFilter.php b/framework/main/classes/filter/payment/class_PaymentDiscoveryFilter.php
index 7299f4f7..1536aec8 100644
--- a/framework/main/classes/filter/payment/class_PaymentDiscoveryFilter.php
+++ b/framework/main/classes/filter/payment/class_PaymentDiscoveryFilter.php
@@ -72,7 +72,7 @@ class PaymentDiscoveryFilter extends BaseFilter implements Filterable {
 		// Is the resolver set?
 		if (is_null($resolverInstance)) {
 			// Throw an exception here
-			throw new NullPointerException($filterInstance, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($filterInstance, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Get the action name from resolver
diff --git a/framework/main/classes/helper/class_BaseHelper.php b/framework/main/classes/helper/class_BaseHelper.php
index 0651d0c1..b6545819 100644
--- a/framework/main/classes/helper/class_BaseHelper.php
+++ b/framework/main/classes/helper/class_BaseHelper.php
@@ -597,7 +597,7 @@ abstract class BaseHelper extends BaseFrameworkSystem {
 		// The $valueInstance attribute should not be null!
 		if (is_null($this->getValueInstance())) {
 			// Throws an exception here
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Is the field set?
diff --git a/framework/main/classes/helper/html/links/class_HtmlLinkHelper.php b/framework/main/classes/helper/html/links/class_HtmlLinkHelper.php
index f4b0ffe6..170a3092 100644
--- a/framework/main/classes/helper/html/links/class_HtmlLinkHelper.php
+++ b/framework/main/classes/helper/html/links/class_HtmlLinkHelper.php
@@ -93,7 +93,7 @@ class HtmlLinkHelper extends BaseHtmlHelper implements HelpableTemplate {
 		// Sanity-check on it
 		if (is_null($requestInstance)) {
 			// Throw an exception here
-			throw new NullPointerException($helperInstance, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($helperInstance, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Get page (this will throw an exception if not set)
diff --git a/framework/main/classes/iterator/registry/class_RegistryIterator.php b/framework/main/classes/iterator/registry/class_RegistryIterator.php
index 94640bac..731c61ac 100644
--- a/framework/main/classes/iterator/registry/class_RegistryIterator.php
+++ b/framework/main/classes/iterator/registry/class_RegistryIterator.php
@@ -250,7 +250,7 @@ class RegistryIterator extends BaseIterator implements IteratableRegistry {
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugMessage(sprintf('REGISTRY-ITERATOR[%s]: registryKey=%s,current[]=%s', $this->key(), $registryKey, gettype($current)));
 		if (is_null($current)) {
 			// This cannot happen and indicates a logic error
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Return it
diff --git a/framework/main/classes/mailer/debug/class_DebugMailer.php b/framework/main/classes/mailer/debug/class_DebugMailer.php
index 3d34d045..884b3858 100644
--- a/framework/main/classes/mailer/debug/class_DebugMailer.php
+++ b/framework/main/classes/mailer/debug/class_DebugMailer.php
@@ -108,7 +108,7 @@ class DebugMailer extends BaseMailer implements DeliverableMail {
 					// Is the value instance there?
 					if (!isset($recipientList['values'][$variable])) {
 						// Throw exception
-						throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+						throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 					}
 
 					// Get the field from the value instance
diff --git a/framework/main/classes/registry/object/class_ObjectRegistry.php b/framework/main/classes/registry/object/class_ObjectRegistry.php
index 8d25922f..0d01db6d 100644
--- a/framework/main/classes/registry/object/class_ObjectRegistry.php
+++ b/framework/main/classes/registry/object/class_ObjectRegistry.php
@@ -163,7 +163,7 @@ class ObjectRegistry extends BaseRegistry implements ObjectRegister {
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('OBJECT-REGISTRY: Invoking this->instanceExists(%s) ...', $instanceKey));
 		if (!$this->instanceExists($instanceKey)) {
 			// This might happen if a non-registered key was requested
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Get the instance
diff --git a/framework/main/interfaces/class_FrameworkInterface.php b/framework/main/interfaces/class_FrameworkInterface.php
index 836bba5e..8c1003d5 100644
--- a/framework/main/interfaces/class_FrameworkInterface.php
+++ b/framework/main/interfaces/class_FrameworkInterface.php
@@ -35,6 +35,7 @@ interface FrameworkInterface {
 	const EXCEPTION_CLASS_NOT_FOUND      = 0x204;
 	const EXCEPTION_BAD_METHOD_CALL      = 0x205;
 	const EXCEPTION_OUT_OF_BOUNDS        = 0x206;
+	const EXCEPTION_IS_NULL_POINTER      = 0x207;
 
 	/**
 	 * Getter for field name
diff --git a/framework/main/middleware/debug/class_DebugMiddleware.php b/framework/main/middleware/debug/class_DebugMiddleware.php
index 53a2ece6..d5ec854d 100644
--- a/framework/main/middleware/debug/class_DebugMiddleware.php
+++ b/framework/main/middleware/debug/class_DebugMiddleware.php
@@ -198,7 +198,7 @@ class DebugMiddleware extends BaseMiddleware implements Registerable, Logger {
 			throw new InvalidArgumentException('Parameter "message" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getOutputInstance())) {
 			// Should not be NULL
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Use debug output handler
@@ -230,7 +230,7 @@ class DebugMiddleware extends BaseMiddleware implements Registerable, Logger {
 			throw new InvalidArgumentException('Parameter "message" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getOutputInstance())) {
 			// Should not be NULL
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Use debug output handler
@@ -262,7 +262,7 @@ class DebugMiddleware extends BaseMiddleware implements Registerable, Logger {
 			throw new InvalidArgumentException('Parameter "message" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getOutputInstance())) {
 			// Should not be NULL
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Use debug output handler
@@ -294,7 +294,7 @@ class DebugMiddleware extends BaseMiddleware implements Registerable, Logger {
 			throw new InvalidArgumentException('Parameter "message" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getOutputInstance())) {
 			// Should not be NULL
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Use debug output handler
@@ -352,7 +352,7 @@ class DebugMiddleware extends BaseMiddleware implements Registerable, Logger {
 			throw new InvalidArgumentException('Parameter "message" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
 		} elseif (is_null($this->getOutputInstance())) {
 			// Should not be NULL
-			throw new NullPointerException($this, self::EXCEPTION_IS_NULL_POINTER);
+			throw new NullPointerException($this, FrameworkInterface::EXCEPTION_IS_NULL_POINTER);
 		}
 
 		// Invoke Inner method
-- 
2.39.2