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
setAction("ShowJavaDoc", resAction); 
		WorkbenchHelp.setHelp(resAction, IJavaHelpContextIds.SHOW_JAVADOC_ACTION);
		
		Action action= new GotoMatchingBracketAction(this);
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.GOTO_MATCHING_BRACKET);				
		setAction(GotoMatchingBracketAction.GOTO_MATCHING_BRACKET, action);
			
		action= new TextOperationAction(JavaEditorMessages.getResourceBundle(),"ShowOutline.", this, JavaSourceViewer.SHOW_OUTLINE, true); 
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.SHOW_OUTLINE);
		setAction(IJavaEditorActionDefinitionIds.SHOW_OUTLINE, action);
		WorkbenchHelp.setHelp(action, IJavaHelpContextIds.SHOW_OUTLINE_ACTION);
		action= new TextOperationAction(JavaEditorMessages.getResourceBundle(),"OpenStructure.", this, JavaSourceViewer.OPEN_STRUCTURE, true); 
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.OPEN_STRUCTURE);
		setAction(IJavaEditorActionDefinitionIds.OPEN_STRUCTURE, action);
		WorkbenchHelp.setHelp(action, IJavaHelpContextIds.OPEN_STRUCTURE_ACTION);
		
		action= new TextOperationAction(JavaEditorMessages.getResourceBundle(),"OpenHierarchy.", this, JavaSourceViewer.SHOW_HIERARCHY, true); 
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.OPEN_HIERARCHY);
		setAction(IJavaEditorActionDefinitionIds.OPEN_HIERARCHY, action);
		WorkbenchHelp.setHelp(action, IJavaHelpContextIds.OPEN_HIERARCHY_ACTION);
		
		fEncodingSupport= new DefaultEncodingSupport();
		fEncodingSupport.initialize(this);
		
		fSelectionHistory= new SelectionHistory(this);
		action= new StructureSelectEnclosingAction(this, fSelectionHistory);
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.SELECT_ENCLOSING);				
		setAction(StructureSelectionAction.ENCLOSING, action);
		action= new StructureSelectNextAction(this, fSelectionHistory);
		action.setActionDefinitionId(IJavaEditorActionDefinitionIds.SELECT_NEXT);