Bug 148993 [Workbench] Wrong Javadoc for IDE.getEditorDescriptor
3.2 and latest 3.3 build The Javadoc of IDE.getEditorDescriptor(...) does not mention that as a very last resort it tries to find the editor descriptor for the default text editor i.e. IDEWorkbenchPlugin.DEFAULT_TEXT_EDITOR_ID (org.eclipse.ui.DefaultTextEditor)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/IDE.java
public static IEditorPart openEditor(IWorkbenchPage page,
			IEditorInput input, String editorId) throws PartInitException {
		
		if (page == null) {
			throw new IllegalArgumentException();
		}
		
		return page.openEditor(input, editorId);
	}
	/**
	 * Opens an editor on the given IFileStore object.
	 * <p>
	 * Unlike the other <code>openEditor</code> methods, this one can be used
	 * to open files that reside outside the workspace resource set.
	 * </p>
	 * <p>
	 * If the page already has an editor open on the target object then that
	 * editor is brought to front; otherwise, a new editor is opened.
	 * </p>
	 * 
	 * @param page
	 *            the page in which the editor will be opened
	 * @param uri
	 *            the URI of the file store representing the file to open
	 * @param editorId
	 *            the id of the editor extension to use
	 * @param activate
	 *            if <code>true</code> the editor will be activated opened
	 * @return an open editor or <code>null</code> if an external editor was
	 * @exception PartInitException