Bug 76439 Classfile editor: Allow source attachment option for classes in class folders
20041017 When you open a class file for a class folder that has no source attchment you see a message 'No source available...' but no button that brings you to the source attachment page like it is done for JARs. ClassfileEditor line 225 is too restrictive, the test .isArchive() seems to be too much
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/ClassFileEditor.java
* Default constructor.
	 */
	public ClassFileEditor() {
		super();
		setDocumentProvider(JavaPlugin.getDefault().getClassFileDocumentProvider());
		setEditorContextMenuId("#ClassFileEditorContext"); 
		setRulerContextMenuId("#ClassFileRulerContext"); 
		setOutlinerContextMenuId("#ClassFileOutlinerContext"); 
		
	}
	
	/*
	 * @see AbstractTextEditor#createActions()
	 */
	protected void createActions() {
		super.createActions();
		
		setAction(ITextEditorActionConstants.SAVE, null);
		setAction(ITextEditorActionConstants.REVERT_TO_SAVED, null);
		
		/*
		 * 1GF82PL: ITPJUI:ALL - Need to be able to add bookmark to classfile
		 *
		 *  // replace default action with class file specific ones
		 *
		 *	setAction(ITextEditorActionConstants.BOOKMARK, new AddClassFileMarkerAction("AddBookmark.", this, IMarker.BOOKMARK, true)); 
		 *	setAction(ITextEditorActionConstants.ADD_TASK, new AddClassFileMarkerAction("AddTask.", this, IMarker.TASK, false)); 
		 *	setAction(ITextEditorActionConstants.RULER_MANAGE_BOOKMARKS, new ClassFileMarkerRulerAction("ManageBookmarks.", getVerticalRuler(), this, IMarker.BOOKMARK, true)); 
		 *	setAction(ITextEditorActionConstants.RULER_MANAGE_TASKS, new ClassFileMarkerRulerAction("ManageTasks.", getVerticalRuler(), this, IMarker.TASK, true)); 
		 */