Crash when using Scilab Demos

Reported by mrpetersen

Bug description:

Error log:

How to reproduce the bug:

Launch scilab.
Select "Scilab Demos" from "?" menu.
Select in the left most column "XML" and then in the right most column "CML read".
Close the window labelled "Display of a molecule of diazepam from a CML file (XML)"
This results in:
Starte Ausführung:
  lade Startumgebung
 Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException
	at javax.media.opengl.awt.GLJPanel$AbstractReadbackBackend.postGL(GLJPanel.java:924)
	at javax.media.opengl.awt.GLJPanel$Updater.display(GLJPanel.java:656)
	at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:189)
	at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:177)
	at jogamp.opengl.GLPbufferImpl$DisplayAction.run(GLPbufferImpl.java:300)
	at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:425)
	at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:364)
	at jogamp.opengl.GLPbufferImpl.invokeGL(GLPbufferImpl.java:286)
	at jogamp.opengl.GLPbufferImpl.display(GLPbufferImpl.java:149)
	at javax.media.opengl.awt.GLJPanel$PbufferBackend.doPaintComponentImpl(GLJPanel.java:1196)
	at javax.media.opengl.awt.GLJPanel$AbstractReadbackBackend.doPaintComponent(GLJPanel.java:942)
	at javax.media.opengl.awt.GLJPanel.paintComponent(GLJPanel.java:356)
	at javax.swing.JComponent.paint(JComponent.java:1037)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JLayeredPane.paint(JLayeredPane.java:567)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JViewport.paint(JViewport.java:795)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at org.scilab.modules.gui.bridge.tab.SwingScilabTab.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at org.flexdock.docking.defaults.DefaultDockingPort.paint(DefaultDockingPort.java:1983)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at javax.swing.JLayeredPane.paint(JLayeredPane.java:567)
	at javax.swing.JComponent.paintChildren(JComponent.java:870)
	at javax.swing.JComponent.paint(JComponent.java:1046)
	at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:34)
	at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)
	at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97)
	at java.awt.Container.paint(Container.java:1791)
	at java.awt.Window.paint(Window.java:3390)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:823)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
	at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:694)
	at javax.swing.RepaintManager.access$700(RepaintManager.java:41)
	at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1672)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:702)
	at java.awt.EventQueue.access$400(EventQueue.java:82)
	at java.awt.EventQueue$2.run(EventQueue.java:663)
	at java.awt.EventQueue$2.run(EventQueue.java:661)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:672)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Other information:

scilab-master-1347012809