/**
* @return
*/
/*package*/ IEditorReference openEmptyTab() {
IEditorInput input = new NullEditorInput();
EditorDescriptor desc = (EditorDescriptor) ((EditorRegistry) getEditorRegistry())
.findEditor(EditorRegistry.EMPTY_EDITOR_ID);
EditorReference result = new EditorReference(this, input, desc);
try {
createEditorTab(result, ""); //$NON-NLS-1$