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
* @see StatusTextEditor#getStatusMessage(IStatus)
	 */
	protected String getStatusMessage(IStatus status) {
		if (fEncodingSupport != null) {
			String message= fEncodingSupport.getStatusMessage(status);
			if (message != null)
				return message;
		}
		return super.getStatusMessage(status);
	}
	
	/*
	 * @see org.eclipse.ui.texteditor.AbstractTextEditor#handleElementContentReplaced()
	 */
	protected void handleElementContentReplaced() {
		super.handleElementContentReplaced();
		if (fProjectionModelUpdater != null)
			fProjectionModelUpdater.initialize();
	}
	
	/*
	 * @see AbstractTextEditor#doSetInput
	 */
	protected void doSetInput(IEditorInput input) throws CoreException {
		ISourceViewer sourceViewer= getSourceViewer();
		if (!(sourceViewer instanceof ISourceViewerExtension2)) {
			setPreferenceStore(createCombinedPreferenceStore(input));
			internalDoSetInput(input);
			return;
		}