Bug 66923 [typing]Can delete word (Ctrl-Backspace) on read only file
When you open read-only java file, all editing functions are disabled except deleting with Ctrl-Backspace and Ctrl-Del, then it is imposible to save this file. On simple text file it works ok - it blocks all edditing functions (including Ctrl-Backspace). I am using build 200406111814
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
}
		
		private ListenerList fListeners= new ListenerList();
		
		private IPropertyChangeListener fListener= new PropertyChangeListener();
		
		private Map fOptions;
		
		private IPreferenceStore fMockupPreferenceStore;
		
		private IPropertyChangeEventFilter fFilter;
		
		/**
		 * Initialize with the given options.
		 * 
		 * @param options The options to wrap
		 * @param mockupPreferenceStore the mock-up preference store
		 * @param filter the property change filter
		 */
		public OptionsAdapter(Map options, IPreferenceStore mockupPreferenceStore, IPropertyChangeEventFilter filter) {
			fMockupPreferenceStore= mockupPreferenceStore;
			fOptions= options;
			setFilter(filter);
		}
		/**
		 * {@inheritDoc}
		 */
		public void addPropertyChangeListener(IPropertyChangeListener listener) {
			if (fListeners.size() == 0)
				fMockupPreferenceStore.addPropertyChangeListener(fListener);