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 <code>true</code> if Semantic Highlighting is enabled.
	 * 
	 * @since 3.0
	 */
	private boolean isSemanticHighlightingEnabled() {
		return getPreferenceStore().getBoolean(PreferenceConstants.EDITOR_SEMANTIC_HIGHLIGHTING_ENABLED);
	}
	
	/**
	 * Install Semantic Highlighting.
	 * 
	 * @since 3.0
	 */
	private void installSemanticHighlighting() {
		if (fSemanticManager == null) {
			fSemanticManager= new SemanticHighlightingManager();
			JavaPresentationReconciler backgroundPresentationReconciler= (JavaPresentationReconciler) new JavaSourceViewerConfiguration(JavaPlugin.getDefault().getJavaTextTools().getColorManager(), getPreferenceStore(), this, IJavaPartitions.JAVA_PARTITIONING).getPresentationReconciler(getSourceViewer());
			fSemanticManager.install(this, (JavaSourceViewer) getSourceViewer(), JavaPlugin.getDefault().getJavaTextTools().getColorManager(), getPreferenceStore(), backgroundPresentationReconciler);
		}
	}
	
	/**
	 * Uninstall Semantic Highlighting.
	 * 
	 * @since 3.0
	 */
	private void uninstallSemanticHighlighting() {
		if (fSemanticManager != null) {
			fSemanticManager.uninstall();
			fSemanticManager= null;