NEWT / SWT Key Listeners

I'm having trouble with KeyListeners in my SWT application while using JOGL's NewtCanvasSWT.

If I have a org.eclipse.swt.events.KeyListener attached to a SWT Composite and a com.jogamp.newt.event.KeyListener attached to a GLWindow, the SWT Composite never seems to receive keyboard focus.

I put together a simple demonstration below. No matter where you click with the mouse, only the NEWT KeyListener will fire.

Is this expected behavior?

import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLProfile;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import com.jogamp.newt.opengl.GLWindow;
import com.jogamp.newt.swt.NewtCanvasSWT;

public class Application
{
    public static void main( String[] args )
    {
        Display display = new Display( );
        Shell shell = new Shell( display );
        shell.setSize( 200, 200 );
        shell.setLayout( new FillLayout( ) );

        Composite background = new Composite( shell, SWT.NONE );
        background.setLayout( new FillLayout( ) );

        final Composite composite = new Composite( background, SWT.NONE );
        
        // this KeyListener never fires (Composite never seems to receive key focus)
        composite.addKeyListener( new org.eclipse.swt.events.KeyAdapter( )
        {
            @Override
            public void keyReleased( org.eclipse.swt.events.KeyEvent e )
            {
                System.out.println( "Composite (SWT): " + e.keyCode );
            }
        } );

        GLCapabilities glCapabilities = new GLCapabilities( GLProfile.getMaxFixedFunc( true ) );
        GLWindow glWindow = GLWindow.create( glCapabilities );
        NewtCanvasSWT glCanvas = new NewtCanvasSWT( background, SWT.NONE, glWindow );

        // this is the only KeyListener which fires
        glWindow.addKeyListener( new com.jogamp.newt.event.KeyAdapter( )
        {
            @Override
            public void keyReleased( com.jogamp.newt.event.KeyEvent e )
            {
                System.out.println( "Window (NEWT): " + e.getKeyCode( ) );
            }
        } );

        shell.open( );
        while ( !shell.isDisposed( ) )
        {
            if ( !display.readAndDispatch( ) ) display.sleep( );
        }
        display.dispose( );
    }
}