Bug 66234 [projection] Revert file sometimes does not display the imports
I was able to recreate the scenario, I have a Java file in a Java project as /* * Created on Jun 8, 2004 * * TODO To change the template for this generated file go to * Window - Preferences - Java - Code Style - Code Templates */ package com; import java.net.URL; import java.util.Date; /** * @author admin * * TODO To change the template for this generated type comment go to * Window - Preferences - Java - Code Style - Code Templates */ public class Test { Date xyz; URL abc; } I open it in the editor, delete the keyword 'package' so that that line only says com. Now I right click on file and select 'Revert File'. Notice that the imports list disappears. This is in M9.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
if (text == null || text.isDisposed())
				return;
			
			
			int offset= 0;
			int length= 0;
			if (viewer instanceof ITextViewerExtension5) {
				ITextViewerExtension5 extension= (ITextViewerExtension5) viewer;
				IRegion widgetRange= extension.modelRange2WidgetRange(region);
				if (widgetRange == null)
					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) {