Bug 77598 [nls tooling] NLS hovers / Ctrl+Click not consistent for duplicate keys
20041103 With the following files, the key A.0 is duplicate. - Ctrl + Click: Junps to 'hello' - Hover over "A.0" in class A: shows 'world' public class A { String h= Messages.getString("A.0"); //$NON-NLS-1$ } messages.properties: A.0=hello A.0=world
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
fMarkOccurrenceAnnotations= false;
		uninstallOccurrencesFinder();
		
		uninstallOverrideIndicator();
		
		uninstallSemanticHighlighting();
		
		if (fActivationListener != null) {
			Shell shell= getEditorSite().getShell();
			if (shell != null && !shell.isDisposed())
				shell.removeShellListener(fActivationListener);
			fActivationListener= null;
		}
		
		if (isBrowserLikeLinks())
			disableBrowserLikeLinks();
			
		if (fEncodingSupport != null) {
			fEncodingSupport.dispose();
			fEncodingSupport= null;
		}
		
		if (fBracketMatcher != null) {
			fBracketMatcher.dispose();
			fBracketMatcher= null;
		}
		
		if (fSelectionHistory != null) {
			fSelectionHistory.dispose();