Bug 124569 [projection] expose projection model updater on JavaEditor
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
*/
	protected String getStatusMessage(IStatus status) {
		if (fEncodingSupport != null) {
			String message= fEncodingSupport.getStatusMessage(status);
			if (message != null)
				return message;
		}
		return super.getStatusMessage(status);
	}
	/*
	 * @see AbstractTextEditor#doSetInput
	 */
	protected void doSetInput(IEditorInput input) throws CoreException {
		ISourceViewer sourceViewer= getSourceViewer();
		if (!(sourceViewer instanceof ISourceViewerExtension2)) {
			setPreferenceStore(createCombinedPreferenceStore(input));
			internalDoSetInput(input);
			return;
		}
		
		getSourceViewerDecorationSupport(sourceViewer).uninstall();
		((ISourceViewerExtension2)sourceViewer).unconfigure();
		setPreferenceStore(createCombinedPreferenceStore(input));
		
		sourceViewer.configure(getSourceViewerConfiguration());
		getSourceViewerDecorationSupport(sourceViewer).install(getPreferenceStore());
		internalDoSetInput(input);
	}
	private void internalDoSetInput(IEditorInput input) throws CoreException {
		ISourceViewer sourceViewer= getSourceViewer();