Graphics2d NPE?

Dobai-Pataky_BSSSSl · November 18, 2010, 11:34pm

Hi all.
I was trying to get this snippet to work:

http://www.codecommit.com/blog/java/rapid-prototyping-with-jruby (the
java one works well, the jruby scripting java one results in:

gist.github.com

https://gist.github.com/rdp/705799

gistfile1.txt

Exception in thread "AWT-EventQueue-0" sun/java2d/d3d/D3DRenderer.java:29:in `validateContext': java.lang.NullPointerException: null (NativeException)
        from sun/java2d/pipe/BufferedRenderPipe.java:109:in `fillRect'
        from sun/java2d/pipe/ValidatePipe.java:58:in `fillRect'
        from sun/java2d/SunGraphics2D.java:2265:in `fillRect'
        from sun/reflect/NativeMethodAccessorImpl.java:-2:in `invoke0'
        from sun/reflect/NativeMethodAccessorImpl.java:39:in `invoke'
        from sun/reflect/DelegatingMethodAccessorImpl.java:25:in `invoke'
Exception in thread "AWT-EventQueue-0"  from java/lang/reflect/Method.java:597:in `invoke'
        from org/jruby/javasupport/JavaMethod.java:491:in `invokeDirectWithExceptionHandling'
        from :1:in `paintComponent'

This file has been truncated. show original

Exception in thread “AWT-EventQueue-0”
sun/java2d/d3d/D3DRenderer.java:29:in validateContext': java.lang.NullPointerException: null (NativeException) from sun/java2d/pipe/BufferedRenderPipe.java:109:in fillRect’

I also get this exception

def paintComponent(g)

  g.java_send :setPaint, [java.awt.Paint], @paint

Exception in thread “AWT-EventQueue-0” test2.rb:18:in `java_send’:
cannot convert instance of class org.jruby.RubyModule to

are either of these two expected?
Thanks!
-r