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
IInformationControlCreator informationControlCreator= new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell shell) {
				boolean cutDown= false;
				int style= cutDown ? SWT.NONE : (SWT.V_SCROLL | SWT.H_SCROLL);
				return new DefaultInformationControl(shell, SWT.RESIZE, style, new HTMLTextPresenter(cutDown));
			}
		};
		fInformationPresenter= new InformationPresenter(informationControlCreator);
		fInformationPresenter.setSizeConstraints(60, 10, true, true);		
		fInformationPresenter.install(getSourceViewer());
		
		fEditorSelectionChangedListener= new EditorSelectionChangedListener();
		fEditorSelectionChangedListener.install(getSelectionProvider());
		
		if (isBrowserLikeLinks())
			enableBrowserLikeLinks();
		if (PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_DISABLE_OVERWRITE_MODE))
			enableOverwriteMode(false);
		if (fMarkOccurrenceAnnotations)
			installOccurrencesFinder();
		
		if (isSemanticHighlightingEnabled())
			installSemanticHighlighting();
		getEditorSite().getShell().addShellListener(fActivationListener);
	}
	
	protected void configureSourceViewerDecorationSupport(SourceViewerDecorationSupport support) {
		
		fBracketMatcher.setVersion(getPreferenceStore().getString(JavaCore.COMPILER_SOURCE));