java.lang.Exception: Stack trace
	at java.lang.Thread.dumpStack(Unknown Source)
	at com.jogamp.opengl.FBObject.checkPreGLError(FBObject.java:1098)
	at com.jogamp.opengl.FBObject.syncSamplingSink(FBObject.java:2137)
	at com.jogamp.opengl.FBObject.use(FBObject.java:2169)
	at jogamp.opengl.GLFBODrawableImpl.swapFBOImpl(GLFBODrawableImpl.java:396)
	at jogamp.opengl.GLFBODrawableImpl.swapBuffersImpl(GLFBODrawableImpl.java:348)
	at jogamp.opengl.GLDrawableImpl.swapBuffers(GLDrawableImpl.java:93)
	at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:657)
	at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:594)
	at javax.media.opengl.awt.GLJPanel$SoftwareBackend.doPaintComponentImpl(GLJPanel.java:1114)
	at javax.media.opengl.awt.GLJPanel$AbstractReadbackBackend.doPaintComponent(GLJPanel.java:1002)
	at javax.media.opengl.awt.GLJPanel.paintComponent(GLJPanel.java:361)
	at javax.swing.JComponent.paint(Unknown Source)
	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.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 com.jogamp.opengl.util.AWTAnimatorImpl$1.run(AWTAnimatorImpl.java:160)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$400(Unknown Source)
	at java.awt.EventQueue$2.run(Unknown Source)
	at java.awt.EventQueue$2.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Post FBO swap(X): fboI back 0, front 0, num 1
Post FBO swap(@swap): done
Pre-existing GL error: 0x500