Dean, what version of MASON are you running? The Display3D.java:1091 tells us it might be a bug in our code we can fix (likely easily). But 1091 isn't a valid line in MASON 9. Knowing what version would be helpful. Sean On Mar 31, 2005, at 10:49 AM, Dean Gardner wrote: > Heres the stack trace. I know its probably something completely stupid > on my part but it is driving me crazy. Hope you can help > > java.lang.NullPointerException > at sim.display3d.Display3D.startMovie(Display3D.java:1091) > at > sim.display3d.Display3D$7.actionPerformed(Display3D.java:412) > at > javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:17 > 86) > at > javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Abstra > ctButton.java:1839) > at > javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel > .java:420) > at > javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258 > ) > at > javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonL > istener.java:245) > at java.awt.Component.processMouseEvent(Component.java:5100) > at java.awt.Component.processEvent(Component.java:4897) > at java.awt.Container.processEvent(Container.java:1569) > at java.awt.Component.dispatchEventImpl(Component.java:3615) > at java.awt.Container.dispatchEventImpl(Container.java:1627) > at java.awt.Component.dispatchEvent(Component.java:3477) > at > java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483 > ) > at > java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198) > > at > java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128) > at java.awt.Container.dispatchEventImpl(Container.java:1613) > at java.awt.Window.dispatchEventImpl(Window.java:1606) > at java.awt.Component.dispatchEvent(Component.java:3477) > at java.awt.EventQueue.dispatchEvent(EventQueue.java:456) > at > java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh > read.java:201) > at > java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre > ad.java:151) > at > java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145) > > at > java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137) > > at > java.awt.EventDispatchThread.run(EventDispatchThread.java:100) > > > On Thu, 24 Mar 2005 15:42:16 -0500, Sean Luke <[log in to unmask]> wrote: >> Dean, could you give us the full stack trace of your null pointer >> exception? What was printed out? >> >> Sean >> >> On Mar 24, 2005, at 9:06 AM, Dean Gardner wrote: >> >>> Hi >>> >>> I am a little unsure as to how to produce the quicktime movies. I >>> have >>> and installed the JMF, however when i try and create a movie I >>> recieve >>> a NullPointerException. >>> >>> Can anyone help? >>> >>> Thanks >>> >>> Dean >> >>