xtn5250

I tried to add some controls to my 5250 panels via a instance of
PanelHandler. It works pretty well but sometimes the AWT-EventQueue throws
an ArrayIndexOutOfBoundsException after returning to a panel without
controls:

Exception in thread "AWT-EventQueue-0"
java.lang.ArrayIndexOutOfBoundsException: No such child: 1
at java.awt.Container.getComponent(Unknown Source)
at javax.swing.JComponent.rectangleIsObscured(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at net.infordata.em.crt.XICrt.paint(XICrt.java:366)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown
Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown
Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)