From: Roland Häder <roland@mxchange.org>
Date: Mon, 9 Jun 2025 00:13:26 +0000 (+0200)
Subject: Continued:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=ac7305b181dc742f3484701318feac2a636d5623;p=hub.git

Continued:
- method `accept(Visitor)` does now return `void`
- same with `executeTask()` and `doShutdown()`
- `isFeatureAvailable()` returns `bool` by now
---

diff --git a/application/hub/classes/container/socket/class_SocketContainer.php b/application/hub/classes/container/socket/class_SocketContainer.php
index 7fb555475..6e6ca46ce 100644
--- a/application/hub/classes/container/socket/class_SocketContainer.php
+++ b/application/hub/classes/container/socket/class_SocketContainer.php
@@ -282,7 +282,7 @@ class SocketContainer extends BaseHubContainer implements StorableSocket, Visita
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this listener
 		/* DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(strtoupper($this->getSocketProtocol()) . '-SOCKET: ' . $visitorInstance->__toString() . ' has visited ' . $this->__toString() . ' - CALLED!');
 		$visitorInstance->visitSocket($this);
@@ -663,7 +663,7 @@ class SocketContainer extends BaseHubContainer implements StorableSocket, Visita
 	 * @todo	We may want to implement a filter for ease notification of other objects like our pool
 	 * @todo	rewrite this!
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		// Should be valid socket
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('%s-SOCKET: this->socketResource=%s - CALLED!', strtoupper($this->getSocketProtocol()), $this->getPrintableName()));
 		if (!$this->isValidSocket()) {
diff --git a/application/hub/classes/feature/hubcoin_reward/class_HubcoinRewardFeature.php b/application/hub/classes/feature/hubcoin_reward/class_HubcoinRewardFeature.php
index ee2092bbf..fc78e1226 100644
--- a/application/hub/classes/feature/hubcoin_reward/class_HubcoinRewardFeature.php
+++ b/application/hub/classes/feature/hubcoin_reward/class_HubcoinRewardFeature.php
@@ -64,7 +64,7 @@ class HubcoinRewardFeature extends BaseFeature implements Feature {
 	 *
 	 * @return	$isAvailable	Whether this feature is available
 	 */
-	public function isFeatureAvailable () {
+	public function isFeatureAvailable (): bool {
 		// Testing this feature is pretty simple:
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('[%s:%d]: CALLED!', __METHOD__, __LINE__));
 		$isAvailable = ((FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('extension_scrypt_loaded') === TRUE) && (extension_loaded('scrypt')) && (is_callable('scrypt')));
diff --git a/application/hub/classes/handler/package/class_NetworkPackageHandler.php b/application/hub/classes/handler/package/class_NetworkPackageHandler.php
index 1dd2aee66..474083834 100644
--- a/application/hub/classes/handler/package/class_NetworkPackageHandler.php
+++ b/application/hub/classes/handler/package/class_NetworkPackageHandler.php
@@ -1376,7 +1376,7 @@ class NetworkPackageHandler extends BaseHubHandler implements Deliverable, Recei
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit the package
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('NETWORK-PACKAGE-HANDLER: ' . $visitorInstance->__toString() . ' has visited - CALLED!');
 		$visitorInstance->visitNetworkPackageHandler($this);
diff --git a/application/hub/classes/helper/connection/class_BaseConnectionHelper.php b/application/hub/classes/helper/connection/class_BaseConnectionHelper.php
index 69b7b6804..8b81844d4 100644
--- a/application/hub/classes/helper/connection/class_BaseConnectionHelper.php
+++ b/application/hub/classes/helper/connection/class_BaseConnectionHelper.php
@@ -292,7 +292,7 @@ abstract class BaseConnectionHelper extends BaseHubSystemHelper implements Visit
 	 * @param	$visitorInstance	A Visitor instance
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Trace message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('BASE-CONNECTION-HELPER: visitorInstance=%s - CALLED!', $visitorInstance->__toString()));
 
diff --git a/application/hub/classes/helper/connection/ipv4/tcp/class_TcpConnectionHelper.php b/application/hub/classes/helper/connection/ipv4/tcp/class_TcpConnectionHelper.php
index 932b81329..8aea8ee9e 100644
--- a/application/hub/classes/helper/connection/ipv4/tcp/class_TcpConnectionHelper.php
+++ b/application/hub/classes/helper/connection/ipv4/tcp/class_TcpConnectionHelper.php
@@ -147,7 +147,7 @@ class TcpConnectionHelper extends BaseIpV4ConnectionHelper implements Connection
 	 * @throws	SocketShutdownException		If the current socket could not be shut down
 	 * @todo	rewrite this!
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		// Debug message
 		self::createDebugInstance(__CLASS__, __LINE__)->traceMessage('TCP-CONNECTION-HELPER: Shutting down connection ... - CALLED!');
 
diff --git a/application/hub/classes/helper/connection/ipv4/udp/class_UdpConnectionHelper.php b/application/hub/classes/helper/connection/ipv4/udp/class_UdpConnectionHelper.php
index 28d644bd9..17c5ca1d5 100644
--- a/application/hub/classes/helper/connection/ipv4/udp/class_UdpConnectionHelper.php
+++ b/application/hub/classes/helper/connection/ipv4/udp/class_UdpConnectionHelper.php
@@ -67,7 +67,7 @@ class UdpConnectionHelper extends BaseIpV4ConnectionHelper implements Connection
 	 * @throws	SocketShutdownException		If the current socket could not be shut down
 	 * @todo	Implement a filter for ease notification of other objects like the pool
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Please implement this method.');
 	}
 
diff --git a/application/hub/classes/listener/class_BaseListener.php b/application/hub/classes/listener/class_BaseListener.php
index b9228eb04..966f22db0 100644
--- a/application/hub/classes/listener/class_BaseListener.php
+++ b/application/hub/classes/listener/class_BaseListener.php
@@ -296,7 +296,7 @@ abstract class BaseListener extends BaseHubSystem implements Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Debug message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(strtoupper($this->getProtocolName()) . '-LISTENER: ' . $visitorInstance->__toString() . ' has visited ' . $this->__toString() . ' - CALLED!');
 
diff --git a/application/hub/classes/listener/class_BaseListenerDecorator.php b/application/hub/classes/listener/class_BaseListenerDecorator.php
index c1c156e9e..36750577f 100644
--- a/application/hub/classes/listener/class_BaseListenerDecorator.php
+++ b/application/hub/classes/listener/class_BaseListenerDecorator.php
@@ -106,7 +106,7 @@ abstract class BaseListenerDecorator extends BaseDecorator implements Visitable
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Trace message
 		//* NOSY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('%s-LISTENER-DECORATOR: visitorInstance=%s - CALLED!', strtoupper($this->getProtocolName()), $visitorInstance->__toString()));
 
diff --git a/application/hub/classes/package/assembler/class_PackageAssembler.php b/application/hub/classes/package/assembler/class_PackageAssembler.php
index c02d2c6f3..122d92ac3 100644
--- a/application/hub/classes/package/assembler/class_PackageAssembler.php
+++ b/application/hub/classes/package/assembler/class_PackageAssembler.php
@@ -307,7 +307,7 @@ class PackageAssembler extends BaseHubSystem implements Assembler, Registerable,
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit the assembler
 		$visitorInstance->visitAssembler($this);
 	}
diff --git a/application/hub/classes/tasks/apt-proxy/class_ b/application/hub/classes/tasks/apt-proxy/class_
index 1518714f5..c5a55d0ab 100644
--- a/application/hub/classes/tasks/apt-proxy/class_
+++ b/application/hub/classes/tasks/apt-proxy/class_
@@ -62,7 +62,7 @@ class AptProxy???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class AptProxy???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class AptProxy???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('APT-PROXY-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/apt-proxy/class_AptProxyListenerTask.php b/application/hub/classes/tasks/apt-proxy/class_AptProxyListenerTask.php
index d20f03a87..85c28a29e 100644
--- a/application/hub/classes/tasks/apt-proxy/class_AptProxyListenerTask.php
+++ b/application/hub/classes/tasks/apt-proxy/class_AptProxyListenerTask.php
@@ -64,7 +64,7 @@ class AptProxyListenerTask extends BaseHubTask implements Taskable, Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class AptProxyListenerTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -85,7 +85,7 @@ class AptProxyListenerTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('APT-PROXY-LISTENER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/chat/class_ b/application/hub/classes/tasks/chat/class_
index a6bca41ba..2bfd82298 100644
--- a/application/hub/classes/tasks/chat/class_
+++ b/application/hub/classes/tasks/chat/class_
@@ -62,7 +62,7 @@ class Chat???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class Chat???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class Chat???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CHAT-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/chat/class_ChatTelnetListenerTask.php b/application/hub/classes/tasks/chat/class_ChatTelnetListenerTask.php
index ae7d7649b..ae85cd0e8 100644
--- a/application/hub/classes/tasks/chat/class_ChatTelnetListenerTask.php
+++ b/application/hub/classes/tasks/chat/class_ChatTelnetListenerTask.php
@@ -64,7 +64,7 @@ class ChatTelnetListenerTask extends BaseHubTask implements Taskable, Visitable
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class ChatTelnetListenerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -85,7 +85,7 @@ class ChatTelnetListenerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CHAT-TELNET-LISTENER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/class_Crawler b/application/hub/classes/tasks/crawler/class_Crawler
index 3932c9aa3..93ad9ac5c 100644
--- a/application/hub/classes/tasks/crawler/class_Crawler
+++ b/application/hub/classes/tasks/crawler/class_Crawler
@@ -62,7 +62,7 @@ class Crawler???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class Crawler???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class Crawler???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/communicator/class_CrawlerNodeCommunicatorTask.php b/application/hub/classes/tasks/crawler/communicator/class_CrawlerNodeCommunicatorTask.php
index 22c4d9628..55e148b70 100644
--- a/application/hub/classes/tasks/crawler/communicator/class_CrawlerNodeCommunicatorTask.php
+++ b/application/hub/classes/tasks/crawler/communicator/class_CrawlerNodeCommunicatorTask.php
@@ -66,7 +66,7 @@ class CrawlerNodeCommunicatorTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerNodeCommunicatorTask extends BaseHubTask implements Taskable, Visit
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the communicator instance
 		$communicatorInstance = CommunicatorFactory::createCommunicatorInstance('crawler_node_communicator_class', 'node');
 
@@ -96,7 +96,7 @@ class CrawlerNodeCommunicatorTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-NODE-COMMUNICATOR-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/document_parser/class_CrawlerDocumentParserTask.php b/application/hub/classes/tasks/crawler/document_parser/class_CrawlerDocumentParserTask.php
index be7fa59c7..8d70f0b94 100644
--- a/application/hub/classes/tasks/crawler/document_parser/class_CrawlerDocumentParserTask.php
+++ b/application/hub/classes/tasks/crawler/document_parser/class_CrawlerDocumentParserTask.php
@@ -65,7 +65,7 @@ class CrawlerDocumentParserTask extends BaseHubTask implements Taskable, Visitab
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerDocumentParserTask extends BaseHubTask implements Taskable, Visitab
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerDocumentParserTask extends BaseHubTask implements Taskable, Visitab
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-DOCUMENT-PARSER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/mime_sniffer/class_CrawlerMimeSnifferTask.php b/application/hub/classes/tasks/crawler/mime_sniffer/class_CrawlerMimeSnifferTask.php
index 3de0b9c9b..87cf8301b 100644
--- a/application/hub/classes/tasks/crawler/mime_sniffer/class_CrawlerMimeSnifferTask.php
+++ b/application/hub/classes/tasks/crawler/mime_sniffer/class_CrawlerMimeSnifferTask.php
@@ -65,7 +65,7 @@ class CrawlerMimeSnifferTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerMimeSnifferTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerMimeSnifferTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-MIME-SNIFFER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/ping/class_CrawlerPingTask.php b/application/hub/classes/tasks/crawler/ping/class_CrawlerPingTask.php
index fb47e34f7..56c5fe534 100644
--- a/application/hub/classes/tasks/crawler/ping/class_CrawlerPingTask.php
+++ b/application/hub/classes/tasks/crawler/ping/class_CrawlerPingTask.php
@@ -65,7 +65,7 @@ class CrawlerPingTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerPingTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerPingTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-PING-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/publisher/class_CrawlerRemoteJobPublisherTask.php b/application/hub/classes/tasks/crawler/publisher/class_CrawlerRemoteJobPublisherTask.php
index 386a72d8b..824f273c9 100644
--- a/application/hub/classes/tasks/crawler/publisher/class_CrawlerRemoteJobPublisherTask.php
+++ b/application/hub/classes/tasks/crawler/publisher/class_CrawlerRemoteJobPublisherTask.php
@@ -65,7 +65,7 @@ class CrawlerRemoteJobPublisherTask extends BaseHubTask implements Taskable, Vis
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerRemoteJobPublisherTask extends BaseHubTask implements Taskable, Vis
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerRemoteJobPublisherTask extends BaseHubTask implements Taskable, Vis
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-REMOTE-JOB-PUBLISHER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/snippet_extractor/class_CrawlerSnippetExtractorTask.php b/application/hub/classes/tasks/crawler/snippet_extractor/class_CrawlerSnippetExtractorTask.php
index dd3891d4c..7ba402f59 100644
--- a/application/hub/classes/tasks/crawler/snippet_extractor/class_CrawlerSnippetExtractorTask.php
+++ b/application/hub/classes/tasks/crawler/snippet_extractor/class_CrawlerSnippetExtractorTask.php
@@ -65,7 +65,7 @@ class CrawlerSnippetExtractorTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerSnippetExtractorTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerSnippetExtractorTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-SNIPPET-EXTRACTOR-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/structure_analyzer/class_CrawlerStructureAnalyzerTask.php b/application/hub/classes/tasks/crawler/structure_analyzer/class_CrawlerStructureAnalyzerTask.php
index 95f8f1b21..4230601b3 100644
--- a/application/hub/classes/tasks/crawler/structure_analyzer/class_CrawlerStructureAnalyzerTask.php
+++ b/application/hub/classes/tasks/crawler/structure_analyzer/class_CrawlerStructureAnalyzerTask.php
@@ -65,7 +65,7 @@ class CrawlerStructureAnalyzerTask extends BaseHubTask implements Taskable, Visi
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerStructureAnalyzerTask extends BaseHubTask implements Taskable, Visi
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerStructureAnalyzerTask extends BaseHubTask implements Taskable, Visi
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-STRUCTURE-ANALYZER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_crawler/local/class_CrawlerLocalUrlCrawlerTask.php b/application/hub/classes/tasks/crawler/url_crawler/local/class_CrawlerLocalUrlCrawlerTask.php
index 2ba83d6ba..789b898b7 100644
--- a/application/hub/classes/tasks/crawler/url_crawler/local/class_CrawlerLocalUrlCrawlerTask.php
+++ b/application/hub/classes/tasks/crawler/url_crawler/local/class_CrawlerLocalUrlCrawlerTask.php
@@ -65,7 +65,7 @@ class CrawlerLocalUrlCrawlerTask extends BaseHubTask implements Taskable, Visita
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerLocalUrlCrawlerTask extends BaseHubTask implements Taskable, Visita
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerLocalUrlCrawlerTask extends BaseHubTask implements Taskable, Visita
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-LOCAL-URL-CRAWLER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_crawler/remote/class_CrawlerRemoteUrlCrawlerTask.php b/application/hub/classes/tasks/crawler/url_crawler/remote/class_CrawlerRemoteUrlCrawlerTask.php
index 50f87d1ee..0b74b980b 100644
--- a/application/hub/classes/tasks/crawler/url_crawler/remote/class_CrawlerRemoteUrlCrawlerTask.php
+++ b/application/hub/classes/tasks/crawler/url_crawler/remote/class_CrawlerRemoteUrlCrawlerTask.php
@@ -65,7 +65,7 @@ class CrawlerRemoteUrlCrawlerTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -76,7 +76,7 @@ class CrawlerRemoteUrlCrawlerTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -86,7 +86,7 @@ class CrawlerRemoteUrlCrawlerTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-REMOTE-URL-CRAWLER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSource b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSource
index 752e07658..888f469f2 100644
--- a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSource
+++ b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSource
@@ -60,7 +60,7 @@ class CrawlerUrlSource???Task extends BaseUrlSourceTask implements Taskable, Vis
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -70,7 +70,7 @@ class CrawlerUrlSource???Task extends BaseUrlSourceTask implements Taskable, Vis
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get source instance
 		$sourceInstance = $this->getUrlSourceInstance();
 
@@ -93,7 +93,7 @@ class CrawlerUrlSource???Task extends BaseUrlSourceTask implements Taskable, Vis
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceFoundRssTask.php b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceFoundRssTask.php
index 6fef4e956..d247b5cf8 100644
--- a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceFoundRssTask.php
+++ b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceFoundRssTask.php
@@ -63,7 +63,7 @@ class CrawlerUrlSourceFoundRssTask extends BaseUrlSourceTask implements Taskable
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class CrawlerUrlSourceFoundRssTask extends BaseUrlSourceTask implements Taskable
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Trace message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-UPLOADED-LIST-TASK: CALLED!');
 
@@ -111,7 +111,7 @@ class CrawlerUrlSourceFoundRssTask extends BaseUrlSourceTask implements Taskable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-FOUND-RSS-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceLocalStartTask.php b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceLocalStartTask.php
index 927a21f2c..344eca89a 100644
--- a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceLocalStartTask.php
+++ b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceLocalStartTask.php
@@ -63,7 +63,7 @@ class CrawlerUrlSourceLocalStartTask extends BaseUrlSourceTask implements Taskab
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class CrawlerUrlSourceLocalStartTask extends BaseUrlSourceTask implements Taskab
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Trace message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-UPLOADED-LIST-TASK: CALLED!');
 
@@ -111,7 +111,7 @@ class CrawlerUrlSourceLocalStartTask extends BaseUrlSourceTask implements Taskab
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-LOCAL-START-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceRssStartTask.php b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceRssStartTask.php
index 715de8772..7468fe587 100644
--- a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceRssStartTask.php
+++ b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceRssStartTask.php
@@ -63,7 +63,7 @@ class CrawlerUrlSourceRssStartTask extends BaseUrlSourceTask implements Taskable
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class CrawlerUrlSourceRssStartTask extends BaseUrlSourceTask implements Taskable
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Trace message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-UPLOADED-LIST-TASK: CALLED!');
 
@@ -111,7 +111,7 @@ class CrawlerUrlSourceRssStartTask extends BaseUrlSourceTask implements Taskable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-RSS-START-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceUploadedListTask.php b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceUploadedListTask.php
index a02436e74..1d96e25b7 100644
--- a/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceUploadedListTask.php
+++ b/application/hub/classes/tasks/crawler/url_source/class_CrawlerUrlSourceUploadedListTask.php
@@ -63,7 +63,7 @@ class CrawlerUrlSourceUploadedListTask extends BaseUrlSourceTask implements Task
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class CrawlerUrlSourceUploadedListTask extends BaseUrlSourceTask implements Task
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Trace message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-UPLOADED-LIST-TASK: CALLED!');
 
@@ -111,7 +111,7 @@ class CrawlerUrlSourceUploadedListTask extends BaseUrlSourceTask implements Task
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRAWLER-URL-SOURCE-UPLOADED-LIST-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/cruncher/class_Cruncher b/application/hub/classes/tasks/cruncher/class_Cruncher
index d1a5ecec5..6b150cd13 100644
--- a/application/hub/classes/tasks/cruncher/class_Cruncher
+++ b/application/hub/classes/tasks/cruncher/class_Cruncher
@@ -62,7 +62,7 @@ class Cruncher???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class Cruncher???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class Cruncher???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRUNCHER-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/cruncher/class_CruncherKeyProducerTask.php b/application/hub/classes/tasks/cruncher/class_CruncherKeyProducerTask.php
index 5bc79f48c..c58fdd7fe 100644
--- a/application/hub/classes/tasks/cruncher/class_CruncherKeyProducerTask.php
+++ b/application/hub/classes/tasks/cruncher/class_CruncherKeyProducerTask.php
@@ -65,7 +65,7 @@ class CruncherKeyProducerTask extends BaseHubTask implements Taskable, Visitable
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class CruncherKeyProducerTask extends BaseHubTask implements Taskable, Visitable
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the instance
 		$producerInstance = ProducerFactory::createProducerInstance('cruncher_key_producer_class', 'key');
 
@@ -95,7 +95,7 @@ class CruncherKeyProducerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRUNCHER-KEY-PRODUCER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/cruncher/class_CruncherTestUnitProducerTask.php b/application/hub/classes/tasks/cruncher/class_CruncherTestUnitProducerTask.php
index ddad57dde..0c6e9052b 100644
--- a/application/hub/classes/tasks/cruncher/class_CruncherTestUnitProducerTask.php
+++ b/application/hub/classes/tasks/cruncher/class_CruncherTestUnitProducerTask.php
@@ -65,7 +65,7 @@ class CruncherTestUnitProducerTask extends BaseHubTask implements Taskable, Visi
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class CruncherTestUnitProducerTask extends BaseHubTask implements Taskable, Visi
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the producer instance
 		$producerInstance = ProducerFactory::createProducerInstance('cruncher_test_unit_producer_class', 'test_unit');
 
@@ -95,7 +95,7 @@ class CruncherTestUnitProducerTask extends BaseHubTask implements Taskable, Visi
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRUNCHER-TEST-UNIT-PRODUCER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/cruncher/class_CruncherWorkUnitFetcherTask.php b/application/hub/classes/tasks/cruncher/class_CruncherWorkUnitFetcherTask.php
index 22c1da6bd..08fac3832 100644
--- a/application/hub/classes/tasks/cruncher/class_CruncherWorkUnitFetcherTask.php
+++ b/application/hub/classes/tasks/cruncher/class_CruncherWorkUnitFetcherTask.php
@@ -65,7 +65,7 @@ class CruncherWorkUnitFetcherTask extends BaseHubTask implements Taskable, Visit
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class CruncherWorkUnitFetcherTask extends BaseHubTask implements Taskable, Visit
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		/*
 		 * Get the cruncher instance and call a method which should check if
 		 * the in-buffer is going to depleted. If so, new WUs are fetched from
@@ -94,7 +94,7 @@ class CruncherWorkUnitFetcherTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('CRUNCHER-WORK-UNIT-FETCHER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/miner/block_fetcher/class_MinerBlockFetcherTask.php b/application/hub/classes/tasks/miner/block_fetcher/class_MinerBlockFetcherTask.php
index 3cba4fa19..c93e90293 100644
--- a/application/hub/classes/tasks/miner/block_fetcher/class_MinerBlockFetcherTask.php
+++ b/application/hub/classes/tasks/miner/block_fetcher/class_MinerBlockFetcherTask.php
@@ -65,7 +65,7 @@ class MinerBlockFetcherTask extends BaseHubTask implements Taskable, Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class MinerBlockFetcherTask extends BaseHubTask implements Taskable, Visitable {
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		/*
 		 * Get the miner instance and call a method which should check if
 		 * the in-buffer is going to depleted. If so, new WUs are fetched from
@@ -94,7 +94,7 @@ class MinerBlockFetcherTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('MINER-BLOCK-FETCHER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/miner/block_producer/class_MinerRealGenesisBlockProducerTask.php b/application/hub/classes/tasks/miner/block_producer/class_MinerRealGenesisBlockProducerTask.php
index 7412f9cd7..3ccfc3b53 100644
--- a/application/hub/classes/tasks/miner/block_producer/class_MinerRealGenesisBlockProducerTask.php
+++ b/application/hub/classes/tasks/miner/block_producer/class_MinerRealGenesisBlockProducerTask.php
@@ -65,7 +65,7 @@ class MinerRealGenesisBlockProducerTask extends BaseHubTask implements Taskable,
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class MinerRealGenesisBlockProducerTask extends BaseHubTask implements Taskable,
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the producer instance
 		$producerInstance = ProducerFactory::createProducerInstance('miner_real_genesis_block_producer_class', 'real_unit');
 
@@ -95,7 +95,7 @@ class MinerRealGenesisBlockProducerTask extends BaseHubTask implements Taskable,
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('MINER-GENESIS-BLOCK-PRODUCER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/miner/block_producer/class_MinerTestGenesisBlockProducerTask.php b/application/hub/classes/tasks/miner/block_producer/class_MinerTestGenesisBlockProducerTask.php
index 900717d7b..6ee5b5e22 100644
--- a/application/hub/classes/tasks/miner/block_producer/class_MinerTestGenesisBlockProducerTask.php
+++ b/application/hub/classes/tasks/miner/block_producer/class_MinerTestGenesisBlockProducerTask.php
@@ -65,7 +65,7 @@ class MinerTestGenesisBlockProducerTask extends BaseHubTask implements Taskable,
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class MinerTestGenesisBlockProducerTask extends BaseHubTask implements Taskable,
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the producer instance
 		$producerInstance = ProducerFactory::createProducerInstance('miner_test_genesis_block_producer_class', 'test_unit');
 
@@ -95,7 +95,7 @@ class MinerTestGenesisBlockProducerTask extends BaseHubTask implements Taskable,
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('MINER-TEST-GENESIS-BLOCK-PRODUCER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/miner/class_Miner b/application/hub/classes/tasks/miner/class_Miner
index 1ddb62ec9..ef9e81316 100644
--- a/application/hub/classes/tasks/miner/class_Miner
+++ b/application/hub/classes/tasks/miner/class_Miner
@@ -62,7 +62,7 @@ class Miner???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class Miner???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class Miner???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('MINER-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/miner/communicator/class_MinerNodeCommunicatorTask.php b/application/hub/classes/tasks/miner/communicator/class_MinerNodeCommunicatorTask.php
index 7a66fb543..8337970f7 100644
--- a/application/hub/classes/tasks/miner/communicator/class_MinerNodeCommunicatorTask.php
+++ b/application/hub/classes/tasks/miner/communicator/class_MinerNodeCommunicatorTask.php
@@ -65,7 +65,7 @@ class MinerNodeCommunicatorTask extends BaseHubTask implements Taskable, Visitab
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class MinerNodeCommunicatorTask extends BaseHubTask implements Taskable, Visitab
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the communicator instance
 		$communicatorInstance = CommunicatorFactory::createCommunicatorInstance('miner_node_communicator_class', 'node');
 
@@ -95,7 +95,7 @@ class MinerNodeCommunicatorTask extends BaseHubTask implements Taskable, Visitab
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('MINER-NODE-COMMUNICATOR-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/network/class_NetworkPackage b/application/hub/classes/tasks/network/class_NetworkPackage
index 95bdf70bb..6252ede90 100644
--- a/application/hub/classes/tasks/network/class_NetworkPackage
+++ b/application/hub/classes/tasks/network/class_NetworkPackage
@@ -62,7 +62,7 @@ class NetworkPackage???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class NetworkPackage???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class NetworkPackage???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NETWORK-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/network/class_NetworkPackageReaderTask.php b/application/hub/classes/tasks/network/class_NetworkPackageReaderTask.php
index f0ca8858d..5ee252b12 100644
--- a/application/hub/classes/tasks/network/class_NetworkPackageReaderTask.php
+++ b/application/hub/classes/tasks/network/class_NetworkPackageReaderTask.php
@@ -66,7 +66,7 @@ class NetworkPackageReaderTask extends BaseHubTask implements Taskable, Visitabl
 	 * @return	void
 	 * @todo	Also visit some sub-objects?
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Trace message
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('NETWORK-PACKAGE-READER-TASK: visitorInstance=%s - CALLED!', $visitorInstance->__toString()));
 
@@ -82,7 +82,7 @@ class NetworkPackageReaderTask extends BaseHubTask implements Taskable, Visitabl
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get package instance
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NETWORK-PACKAGE-READER-TASK: CALLED!');
 		$handlerInstance = NetworkPackageHandlerFactory::createNetworkPackageHandlerInstance();
@@ -157,7 +157,7 @@ class NetworkPackageReaderTask extends BaseHubTask implements Taskable, Visitabl
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NETWORK-PACKAGE-READER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/network/class_NetworkPackageWriterTask.php b/application/hub/classes/tasks/network/class_NetworkPackageWriterTask.php
index 68047940c..fa1ce5ba6 100644
--- a/application/hub/classes/tasks/network/class_NetworkPackageWriterTask.php
+++ b/application/hub/classes/tasks/network/class_NetworkPackageWriterTask.php
@@ -68,7 +68,7 @@ class NetworkPackageWriterTask extends BaseHubTask implements Taskable, Visitabl
 	 * @return	void
 	 * @todo	Also visit some sub-objects?
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('NETWORK-PACKAGE-WRITER-TASK: visitorInstance=%s - CALLED!', $visitorInstance->__toString()));
 		$visitorInstance->visitTask($this);
@@ -82,7 +82,7 @@ class NetworkPackageWriterTask extends BaseHubTask implements Taskable, Visitabl
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get package handler instance
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NETWORK-PACKAGE-WRITER-TASK: CALLED!');
 		$handlerInstance = NetworkPackageHandlerFactory::createNetworkPackageHandlerInstance();
@@ -117,7 +117,7 @@ class NetworkPackageWriterTask extends BaseHubTask implements Taskable, Visitabl
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NETWORK-PACKAGE-WRITER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/announcement/class_NodeAnnouncementTask.php b/application/hub/classes/tasks/node/announcement/class_NodeAnnouncementTask.php
index f3b49d379..bcfc4cd9d 100644
--- a/application/hub/classes/tasks/node/announcement/class_NodeAnnouncementTask.php
+++ b/application/hub/classes/tasks/node/announcement/class_NodeAnnouncementTask.php
@@ -64,7 +64,7 @@ class NodeAnnouncementTask extends BaseHubTask implements Taskable, Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -74,7 +74,7 @@ class NodeAnnouncementTask extends BaseHubTask implements Taskable, Visitable {
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the node instance and announce us
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-ANNOUNCEMENT-TASK: Creating node instance ...');
 		NodeObjectFactory::createNodeInstance()->announceToUpperNodes($this);
@@ -86,7 +86,7 @@ class NodeAnnouncementTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-ANNOUNCEMENT-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/chunks/class_NodeChunkAssemblerTask.php b/application/hub/classes/tasks/node/chunks/class_NodeChunkAssemblerTask.php
index 06e65afe6..38a696bc4 100644
--- a/application/hub/classes/tasks/node/chunks/class_NodeChunkAssemblerTask.php
+++ b/application/hub/classes/tasks/node/chunks/class_NodeChunkAssemblerTask.php
@@ -76,7 +76,7 @@ class NodeChunkAssemblerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	Also visit some sub-objects?
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -86,7 +86,7 @@ class NodeChunkAssemblerTask extends BaseHubTask implements Taskable, Visitable
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// "Cache" handler instance
 		$handlerInstance = $this->getHandlerInstance();
 
@@ -125,7 +125,7 @@ class NodeChunkAssemblerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-CHUNK-ASSEMBLER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/class_Node b/application/hub/classes/tasks/node/class_Node
index 4ced91d7c..a137c5e6e 100644
--- a/application/hub/classes/tasks/node/class_Node
+++ b/application/hub/classes/tasks/node/class_Node
@@ -62,7 +62,7 @@ class Node???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class Node???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class Node???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/decoder/class_NodePackageDecoderTask.php b/application/hub/classes/tasks/node/decoder/class_NodePackageDecoderTask.php
index 9c0abfe08..25fc04162 100644
--- a/application/hub/classes/tasks/node/decoder/class_NodePackageDecoderTask.php
+++ b/application/hub/classes/tasks/node/decoder/class_NodePackageDecoderTask.php
@@ -64,7 +64,7 @@ class NodePackageDecoderTask extends BaseHubTask implements Taskable, Visitable
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -74,7 +74,7 @@ class NodePackageDecoderTask extends BaseHubTask implements Taskable, Visitable
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get a decoder instance
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-PACKAGE-DECODER-TASK: CALLED!');
 		$decoderInstance = DecoderFactory::createPackageDecoderInstance();
@@ -101,7 +101,7 @@ class NodePackageDecoderTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-PACKAGE-DECODER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDht b/application/hub/classes/tasks/node/dht/class_NodeDht
index a41a876f4..37a313203 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDht
+++ b/application/hub/classes/tasks/node/dht/class_NodeDht
@@ -62,7 +62,7 @@ class NodeDht???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -73,7 +73,7 @@ class NodeDht???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -83,7 +83,7 @@ class NodeDht???Task extends BaseTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-DHT-|||-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDhtBootstrapTask.php b/application/hub/classes/tasks/node/dht/class_NodeDhtBootstrapTask.php
index 9c61a9ee7..8dd6fc7db 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDhtBootstrapTask.php
+++ b/application/hub/classes/tasks/node/dht/class_NodeDhtBootstrapTask.php
@@ -64,7 +64,7 @@ class NodeDhtBootstrapTask extends BaseHubTask implements Taskable, Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -74,7 +74,7 @@ class NodeDhtBootstrapTask extends BaseHubTask implements Taskable, Visitable {
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Let the DHT class do the work for us
 		DhtObjectFactory::createDhtInstance('node')->bootstrapDht();
 	}
@@ -85,7 +85,7 @@ class NodeDhtBootstrapTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-DHT-BOOTSTRAP-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDhtInitializationTask.php b/application/hub/classes/tasks/node/dht/class_NodeDhtInitializationTask.php
index 7146f78e1..f322fd93c 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDhtInitializationTask.php
+++ b/application/hub/classes/tasks/node/dht/class_NodeDhtInitializationTask.php
@@ -64,7 +64,7 @@ class NodeDhtInitializationTask extends BaseHubTask implements Taskable, Visitab
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -74,7 +74,7 @@ class NodeDhtInitializationTask extends BaseHubTask implements Taskable, Visitab
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Intiailize the DHT
 		DhtObjectFactory::createDhtInstance('node')->initDht();
 	}
@@ -85,7 +85,7 @@ class NodeDhtInitializationTask extends BaseHubTask implements Taskable, Visitab
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-DHT-INITIALIZATION-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDhtLateBootstrapTask.php b/application/hub/classes/tasks/node/dht/class_NodeDhtLateBootstrapTask.php
index cd7452285..1b5fd25d7 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDhtLateBootstrapTask.php
+++ b/application/hub/classes/tasks/node/dht/class_NodeDhtLateBootstrapTask.php
@@ -64,7 +64,7 @@ class NodeDhtLateBootstrapTask extends BaseHubTask implements Taskable, Visitabl
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -74,7 +74,7 @@ class NodeDhtLateBootstrapTask extends BaseHubTask implements Taskable, Visitabl
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Let the DHT class do the work for us
 		DhtObjectFactory::createDhtInstance('node')->bootstrapDht();
 	}
@@ -85,7 +85,7 @@ class NodeDhtLateBootstrapTask extends BaseHubTask implements Taskable, Visitabl
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-DHT-LATE-BOOTSTRAP-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationCheckTask.php b/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationCheckTask.php
index 888cc7b12..7c45c5cb5 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationCheckTask.php
+++ b/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationCheckTask.php
@@ -64,7 +64,7 @@ class NodeDhtPublicationCheckTask extends BaseHubTask implements Taskable, Visit
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class NodeDhtPublicationCheckTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	Add more?
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get DHT instance
 		$dhtInstance = DhtObjectFactory::createDhtInstance('node');
 
@@ -92,7 +92,7 @@ class NodeDhtPublicationCheckTask extends BaseHubTask implements Taskable, Visit
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-PUBLICATION-CHECK-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationTask.php b/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationTask.php
index 51de5d185..606741dfc 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationTask.php
+++ b/application/hub/classes/tasks/node/dht/class_NodeDhtPublicationTask.php
@@ -64,7 +64,7 @@ class NodeDhtPublicationTask extends BaseHubTask implements Taskable, Visitable
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class NodeDhtPublicationTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	Add more?
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get DHT instance
 		$dhtInstance = DhtObjectFactory::createDhtInstance('node');
 
@@ -92,7 +92,7 @@ class NodeDhtPublicationTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-DHT-PUBLICATION-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/dht/class_NodeDhtQueryTask.php b/application/hub/classes/tasks/node/dht/class_NodeDhtQueryTask.php
index 1cb21bf3a..b85707d86 100644
--- a/application/hub/classes/tasks/node/dht/class_NodeDhtQueryTask.php
+++ b/application/hub/classes/tasks/node/dht/class_NodeDhtQueryTask.php
@@ -64,7 +64,7 @@ class NodeDhtQueryTask extends BaseHubTask implements Taskable, Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class NodeDhtQueryTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	~5% done
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get DHT instance
 		$dhtInstance = DhtObjectFactory::createDhtInstance('node');
 
@@ -92,7 +92,7 @@ class NodeDhtQueryTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-DHT-QUERY-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/listener/class_NodeSocketListenerTask.php b/application/hub/classes/tasks/node/listener/class_NodeSocketListenerTask.php
index d5e2dc5a4..ef0a390a0 100644
--- a/application/hub/classes/tasks/node/listener/class_NodeSocketListenerTask.php
+++ b/application/hub/classes/tasks/node/listener/class_NodeSocketListenerTask.php
@@ -72,7 +72,7 @@ class NodeSocketListenerTask extends BaseHubTask implements Taskable, Visitable
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit the pool listener task
 		//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('LISTENER-TASK: Going to visit object ' . $this->getNodeInstance()->getListenerPoolInstance()->__toString() . ' ...');
 		$this->getNodeInstance()->getListenerPoolInstance()->accept($visitorInstance);
@@ -87,7 +87,7 @@ class NodeSocketListenerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -97,7 +97,7 @@ class NodeSocketListenerTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-SOCKET-LISTENER-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/ping/class_NodePingTask.php b/application/hub/classes/tasks/node/ping/class_NodePingTask.php
index 94e0e029f..1c879bb61 100644
--- a/application/hub/classes/tasks/node/ping/class_NodePingTask.php
+++ b/application/hub/classes/tasks/node/ping/class_NodePingTask.php
@@ -79,7 +79,7 @@ class NodePingTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	Also visit some sub-objects?
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -90,7 +90,7 @@ class NodePingTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -100,7 +100,7 @@ class NodePingTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-PING-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/self_connect/class_NodeSelfConnectTask.php b/application/hub/classes/tasks/node/self_connect/class_NodeSelfConnectTask.php
index 9a8f8301b..a226eb08d 100644
--- a/application/hub/classes/tasks/node/self_connect/class_NodeSelfConnectTask.php
+++ b/application/hub/classes/tasks/node/self_connect/class_NodeSelfConnectTask.php
@@ -64,7 +64,7 @@ class NodeSelfConnectTask extends BaseHubTask implements Taskable, Visitable {
 	 * @param	$visitorInstance	An instance of a Visitor class
 	 * @return	void
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -74,7 +74,7 @@ class NodeSelfConnectTask extends BaseHubTask implements Taskable, Visitable {
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get the node instance and try it
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-SELF-CONNECT-TASK: Creating node instance ...');
 		NodeObjectFactory::createNodeInstance()->doSelfConnection($this);
@@ -86,7 +86,7 @@ class NodeSelfConnectTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-SELF-CONNECT-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/tags/class_NodePackageTagsInitTask.php b/application/hub/classes/tasks/node/tags/class_NodePackageTagsInitTask.php
index 47d1cb4bf..8e0a05ac5 100644
--- a/application/hub/classes/tasks/node/tags/class_NodePackageTagsInitTask.php
+++ b/application/hub/classes/tasks/node/tags/class_NodePackageTagsInitTask.php
@@ -65,7 +65,7 @@ class NodePackageTagsInitTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	Maybe visit some sub-objects
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class NodePackageTagsInitTask extends BaseHubTask implements Taskable, Visitable
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		// Get a factory instance and do no more as this loads the object (tags) registry
 		$tagsInstance = PackageTagsFactory::createPackageTagsInstance();
 	}
@@ -86,7 +86,7 @@ class NodePackageTagsInitTask extends BaseHubTask implements Taskable, Visitable
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-PACKAGE-TAGS-INIT-TASK: Shutting down...');
 	}
 
diff --git a/application/hub/classes/tasks/node/update/class_NodeUpdateCheckTask.php b/application/hub/classes/tasks/node/update/class_NodeUpdateCheckTask.php
index 001a61d19..4ffd37812 100644
--- a/application/hub/classes/tasks/node/update/class_NodeUpdateCheckTask.php
+++ b/application/hub/classes/tasks/node/update/class_NodeUpdateCheckTask.php
@@ -65,7 +65,7 @@ class NodeUpdateCheckTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0%
 	 */
-	public function accept (Visitor $visitorInstance) {
+	public function accept (Visitor $visitorInstance): void {
 		// Visit this task
 		$visitorInstance->visitTask($this);
 	}
@@ -75,7 +75,7 @@ class NodeUpdateCheckTask extends BaseHubTask implements Taskable, Visitable {
 	 *
 	 * @return	void
 	 */
-	public function executeTask () {
+	public function executeTask (): void {
 		DebugMiddleware::getSelfInstance()->partialStub('Unimplemented task.');
 	}
 
@@ -85,7 +85,7 @@ class NodeUpdateCheckTask extends BaseHubTask implements Taskable, Visitable {
 	 * @return	void
 	 * @todo	0% done
 	 */
-	public function doShutdown () {
+	public function doShutdown (): void {
 		self::createDebugInstance(__CLASS__, __LINE__)->debugOutput('NODE-UPDATE-CHECK-TASK: Shutting down...');
 	}