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
return;
			}
			
			if (PreferenceConstants.EDITOR_FOLDING_PROVIDER.equals(property)) {
				if (sourceViewer instanceof ProjectionViewer) {
					ProjectionViewer projectionViewer= (ProjectionViewer) sourceViewer;
					if (fProjectionModelUpdater != null)
						fProjectionModelUpdater.uninstall();
					
					fProjectionModelUpdater= JavaPlugin.getDefault().getFoldingStructureProviderRegistry().getCurrentFoldingProvider();
					if (fProjectionModelUpdater != null) {
						fProjectionModelUpdater.install(this, projectionViewer);
					}
				}
				return;
			}
			
		} finally {
			super.handlePreferenceStoreChanged(event);
		}
	}
	
	/**
	 * Initializes the given viewer's colors.
	 * 
	 * @param viewer the viewer to be initialized
	 * @since 3.0
	 */
	protected void initializeViewerColors(ISourceViewer viewer) {