[344289]  Fix FindBug warnings in WAR Products

FrameworkUIPlugin.singleton needs to stay in use, revert premature
removal of assignment
diff --git a/plugins/org.eclipse.libra.framework.ui/src/org/eclipse/libra/framework/ui/FrameworkUIPlugin.java b/plugins/org.eclipse.libra.framework.ui/src/org/eclipse/libra/framework/ui/FrameworkUIPlugin.java
index add6158..1b06613 100644
--- a/plugins/org.eclipse.libra.framework.ui/src/org/eclipse/libra/framework/ui/FrameworkUIPlugin.java
+++ b/plugins/org.eclipse.libra.framework.ui/src/org/eclipse/libra/framework/ui/FrameworkUIPlugin.java
@@ -36,7 +36,7 @@
 
 
 public class FrameworkUIPlugin extends AbstractUIPlugin {
-	protected static FrameworkUIPlugin singleton;
+	private static FrameworkUIPlugin singleton;
 
 	protected Map<String, ImageDescriptor> imageDescriptors = new HashMap<String, ImageDescriptor>();
 
@@ -60,6 +60,7 @@
 
 	public FrameworkUIPlugin() {
 		super();
+		singleton = this;
 	}
 
 	protected ImageRegistry createImageRegistry() {