From 294bf1736ccd210b30a43430049ac5a7a3354d9d Mon Sep 17 00:00:00 2001
From: Roland Haeder <roland@mxchange.org>
Date: Fri, 23 Oct 2015 20:47:02 +0200
Subject: [PATCH] Added work-around for NPE "this.user is null". Not a fix!

---
 .../profile/UserProfileWebRequestBean.java    | 25 +++++++++++++++++--
 .../UserProfileWebRequestController.java      | 10 ++++++++
 .../login_start_sharing_addressbook.xhtml     |  2 +-
 3 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestBean.java b/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestBean.java
index aefe771b..45eae1dd 100644
--- a/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestBean.java
+++ b/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestBean.java
@@ -102,8 +102,29 @@ public class UserProfileWebRequestBean implements UserProfileWebRequestControlle
 
 		// Check all conditions (except for admin)
 		// TODO: Add admin role somehow?
-		return ((profileMode.equals(ProfileMode.PUBLIC))
-				|| (this.loginController.isUserLoggedIn()) && (profileMode.equals(ProfileMode.MEMBERS)));
+		return ((profileMode.equals(ProfileMode.PUBLIC)) ||
+				 (this.loginController.isUserLoggedIn()) && (profileMode.equals(ProfileMode.MEMBERS)));
+	}
+
+	@Override
+	public boolean isProfileLinkVisibleByUser (final User user) {
+		// Is the user instance valid?
+		if (null == user) {
+			// Throw NPE here
+			throw new NullPointerException("user is null");
+		} else if (user.getUserId() == null) {
+			// Throw NPE again
+			throw new NullPointerException("user.userId is null");
+		} else if (user.getUserId() < 1) {
+			// Throw NPE again
+			throw new IllegalArgumentException(MessageFormat.format("user.userId={0} is not valid", user.getUserId()));
+		}
+
+		// Set it here
+		this.setUser(user);
+
+		// Ask other method
+		return this.isProfileLinkVisible();
 	}
 
 	@Override
diff --git a/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestController.java b/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestController.java
index 12e04ebd..437c2d4c 100644
--- a/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestController.java
+++ b/src/java/org/mxchange/addressbook/beans/profile/UserProfileWebRequestController.java
@@ -33,6 +33,16 @@ public interface UserProfileWebRequestController extends Serializable {
 	 */
 	boolean isProfileLinkVisible ();
 
+	/**
+	 * Checks if given user's profile is visible to the currently logged-in
+	 * user.
+	 * <p>
+	 * @param user User instance
+	 * <p>
+	 * @return Whether the profile link is visible
+	 */
+	boolean isProfileLinkVisibleByUser (final User user);
+
 	/**
 	 * Checks if the user profile link is visible
 	 * <p>
diff --git a/web/login/login_start_sharing_addressbook.xhtml b/web/login/login_start_sharing_addressbook.xhtml
index 857df3f3..8158d04a 100644
--- a/web/login/login_start_sharing_addressbook.xhtml
+++ b/web/login/login_start_sharing_addressbook.xhtml
@@ -38,7 +38,7 @@
 
 						<h:column>
 							<f:facet name="header">#{msg.LOGIN_START_SHARING_TITLE}</f:facet>
-							<h:form acceptcharset="utf-8" id="startSharing" rendered="#{profileController.isProfileLinkVisible()}">
+							<h:form acceptcharset="utf-8" id="startSharing" rendered="#{profileController.isProfileLinkVisibleByUser(user)}">
 								<h:commandButton class="submit" id="submit" value="#{msg.LOGIN_START_SHARING_BUTTON}" action="#{shareController.startSharing(user, addressbookController.addressbook)}" title="#{msg.LOGIN_START_SHARING_BUTTON_TITLE}" />
 							</h:form>
 						</h:column>
-- 
2.39.5