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
StyledText text= sourceViewer.getTextWidget();			
			if (text == null || text.isDisposed())
				return;
				
			updateColor(sourceViewer);
			sourceViewer.addTextInputListener(this);
			
			IDocument document= sourceViewer.getDocument();
			if (document != null)
				document.addDocumentListener(this);			
			text.addKeyListener(this);
			text.addMouseListener(this);
			text.addMouseMoveListener(this);
			text.addFocusListener(this);
			text.addPaintListener(this);
			
			((ITextViewerExtension4)sourceViewer).addTextPresentationListener(this);
			
			updateKeyModifierMask();
			
			IPreferenceStore preferenceStore= getPreferenceStore();
			preferenceStore.addPropertyChangeListener(this);
		}
		
		private void updateKeyModifierMask() {
			String modifiers= getPreferenceStore().getString(BROWSER_LIKE_LINKS_KEY_MODIFIER);
			fKeyModifierMask= computeStateMask(modifiers);
			if (fKeyModifierMask == -1) {
				
				fKeyModifierMask= getPreferenceStore().getInt(BROWSER_LIKE_LINKS_KEY_MODIFIER_MASK);