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
if (fEditor instanceof CompilationUnitEditor) {
				IWorkingCopyManager manager= JavaPlugin.getDefault().getWorkingCopyManager();
				fInput= manager.getWorkingCopy(fEditor.getEditorInput());
			} else if (fEditor instanceof ClassFileEditor) {
				IClassFileEditorInput editorInput= (IClassFileEditorInput) fEditor.getEditorInput();
				fInput= editorInput.getClassFile();
			}
			
			if (fInput != null) {
				ProjectionAnnotationModel model= (ProjectionAnnotationModel) fEditor.getAdapter(ProjectionAnnotationModel.class);
				if (model != null) {
					Map additions= computeAdditions((IParent) fInput);
					model.removeAllAnnotations();
					model.replaceAnnotations(null, additions);
				}
			}
			
		} finally {
			fCachedDocument= null;
			fAllowCollapsing= false;
		}
	}
	private void initializePreferences() {
		IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore();
		fCollapseInnerTypes= store.getBoolean(PreferenceConstants.EDITOR_FOLDING_INNERTYPES);
		fCollapseImportContainer= store.getBoolean(PreferenceConstants.EDITOR_FOLDING_IMPORTS);
		fCollapseJavadoc= store.getBoolean(PreferenceConstants.EDITOR_FOLDING_JAVADOC);
		fCollapseMethods= store.getBoolean(PreferenceConstants.EDITOR_FOLDING_METHODS);
	}