Can GWT handle Java Swing?

Question

I'm having some trouble building a GWT application.

Here: https://developers.google.com/web-toolkit/tools/gwtdesigner/features/menu_editing Google themselves talk of the possibility of Java Swing, JFrame implementation in the GWT. I am a Java newbie and don't know what the SWT equivalent of Swing is, so I haven't tried that option.

When I try to run my code (which is built from the GWT Designer) I get errors at each line that uses JFrame:

JFrame frame = new JFrame();

        JMenuBar menuBar = new JMenuBar();
        frame.setJMenuBar(menuBar);

        JMenu mnNewMenu = new JMenu("Test");
        menuBar.add(mnNewMenu);

        JMenu mnNewMenu_1 = new JMenu("Test");
        mnNewMenu.add(mnNewMenu_1);

Returning: [ERROR] [gwtearthdemo] - Line 96: No source code is available for type javax.swing.JFrame; did you forget to inherit a required module?

Ditto for JMenuBar, JMenu.

I have seen errors similar to this with answers suggesting that the function in question is not applicable to GWT. However, Google suggests it is. Any advice here?

Answer 1

In GWT you are restricted to use only some of the java classes since it is not possible to convert all the java classes to javascript. You can find a list of the allowed classes in this link: List of Classes