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
return;
					
				offset= widgetRange.getOffset();
				length= widgetRange.getLength();
				
			} else {
				offset= region.getOffset() - viewer.getVisibleRegion().getOffset();
				length= region.getLength();
			}
			text.redrawRange(offset, length, false);
			
			
			fActiveRegion= region;
			if (viewer instanceof ITextViewerExtension2)
				((ITextViewerExtension2) viewer).invalidateTextPresentation(region.getOffset(), region.getLength());
			else
				viewer.invalidateTextPresentation();
		}
		
		private void activateCursor(ISourceViewer viewer) {
			StyledText text= viewer.getTextWidget();
			if (text == null || text.isDisposed())
				return;
			Display display= text.getDisplay();
			if (fCursor == null)
				fCursor= new Cursor(display, SWT.CURSOR_HAND);
			text.setCursor(fCursor);
		}
		
		private void resetCursor(ISourceViewer viewer) {