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
ISourceReference element= computeHighlightRangeSourceReference();
		if (getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_SYNC_OUTLINE_ON_CURSOR_MOVE))
			synchronizeOutlinePage(element);
		setSelection(element, false);
		updateStatusLine();
	}
	
	protected void setSelection(ISourceReference reference, boolean moveCursor) {
		if (getSelectionProvider() == null)
			return;
		ISelection selection= getSelectionProvider().getSelection();
		if (selection instanceof TextSelection) {
			TextSelection textSelection= (TextSelection) selection;
			
			
			
			if (moveCursor && (textSelection.getOffset() != 0 || textSelection.getLength() != 0))
				markInNavigationHistory();
		}
		
		if (reference != null) {
			
			StyledText  textWidget= null;
			
			ISourceViewer sourceViewer= getSourceViewer();
			if (sourceViewer != null)
				textWidget= sourceViewer.getTextWidget();
			
			if (textWidget == null)
				return;