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/text/folding/DefaultJavaFoldingStructureProvider.java
/*
		 * @see org.eclipse.jdt.core.IElementChangedListener#elementChanged(org.eclipse.jdt.core.ElementChangedEvent)
		 */
		public void elementChanged(ElementChangedEvent e) {
			IJavaElementDelta delta= findElement(fInput, e.getDelta());
			if (delta != null)
				processDelta(delta);
		}
		
		private IJavaElementDelta findElement(IJavaElement target, IJavaElementDelta delta) {
			
			if (delta == null || target == null)
				return null;
			
			IJavaElement element= delta.getElement();
			
			if (element.getElementType() > IJavaElement.CLASS_FILE)
				return null;
			
			if (target.equals(element))
				return delta;				
			
			IJavaElementDelta[] children= delta.getAffectedChildren();
			if (children == null || children.length == 0)
				return null;