MATLAB Central Newsreader - Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Adam Attarian — Wed, 02 Sep 2009 03:33:11 -0400

Hey Guys,

I'm operating on a relatively fresh installation of Snow Leopard and
just put Matlab 2009a on it. When I load up Matlab, I get the lovely
java error:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at apple.awt.CGraphicsEnvironment.resetDisplays
(CGraphicsEnvironment.java:100)
at apple.awt.CGraphicsEnvironment.displayChanged
(CGraphicsEnvironment.java:50)
at apple.awt.CToolkit$4.run(CToolkit.java:1310)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
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)
>>

Any suggestions on getting over this? Something to do w/ my java.opts
perhaps?

Thanks folks,
Adam

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Shonn McNeill — Thu, 03 Sep 2009 14:49:02 -0400

I just got the same error running OS X 10.6 and Matlab 2009a.

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at apple.awt.CGraphicsEnvironment.resetDisplays(CGraphicsEnvironment.java:100)
at apple.awt.CGraphicsEnvironment.displayChanged(CGraphicsEnvironment.java:50)
at apple.awt.CToolkit$4.run(CToolkit.java:1310)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
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)

Student License -- for use in conjunction with courses offered at a
degree-granting institution. Professional and commercial use prohibited.

EDU>>

Sincerely, Kevin

Adam Attarian <adam.attarian@gmail.com> wrote in message <df199056-8cd1-48b1-ae3d-d502fb95d956@z28g2000vbl.googlegroups.com>...
> Hey Guys,
>
> I'm operating on a relatively fresh installation of Snow Leopard and
> just put Matlab 2009a on it. When I load up Matlab, I get the lovely
> java error:
>
> Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
> at apple.awt.CGraphicsEnvironment.resetDisplays
> (CGraphicsEnvironment.java:100)
> at apple.awt.CGraphicsEnvironment.displayChanged
> (CGraphicsEnvironment.java:50)
> at apple.awt.CToolkit$4.run(CToolkit.java:1310)
> at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
> 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)
> >>
>
> Any suggestions on getting over this? Something to do w/ my java.opts
> perhaps?
>
> Thanks folks,
> Adam

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Xiuyu Gao — Wed, 09 Sep 2009 20:08:21 -0400

Similar error here but I am running a MATLAB R2008a. Is that a bug from snow leopard?

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Michael Woodworth — Mon, 14 Sep 2009 19:43:01 -0400

I get the same error on regular old leopard

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Jesse — Thu, 17 Sep 2009 18:33:19 -0400

I am getting the same thing also...2009a and Snow Leopard.

Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Arnaud — Thu, 01 Oct 2009 19:05:19 -0400

same here

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Nathaniel — Mon, 05 Oct 2009 05:13:02 -0400

Same problem here ..

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Tim — Fri, 09 Oct 2009 15:33:04 -0400

Same problem as mentioned before across 200+ network licensed iMacs running 10.6.1

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Harold — Fri, 23 Oct 2009 06:42:04 -0400

same issue... running snow leopard 10.6

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Phillip — Fri, 23 Oct 2009 07:53:04 -0400

Hi everyone

I just came across this problem too. I used Java Preferences to re-order the preferred versions of Java for applications (bottom half of first tab) to prefer the 32-bit over the 64-bit and was able to activate with no problems after that.

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

John Smith — Fri, 23 Oct 2009 08:57:05 -0400

"Phillip " <phillipNOSPAM@usyd.edu.au> wrote in message <hbrncv$s96$1@fred.mathworks.com>...
> Hi everyone
>
> I just came across this problem too. I used Java Preferences to re-order the preferred > versions of Java for applications (bottom half of first tab) to prefer the 32-bit over the > 64-bit and was able to activate with no problems after that.

Did not change anything for me but thanks for the advise.

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Eric Homer — Fri, 06 Nov 2009 05:04:02 -0500

"Phillip " <phillipNOSPAM@usyd.edu.au> wrote in message <hbrncv$s96$1@fred.mathworks.com>...
> Hi everyone
>
> I just came across this problem too. I used Java Preferences to re-order the preferred versions of Java for applications (bottom half of first tab) to prefer the 32-bit over the 64-bit and was able to activate with no problems after that.

This worked great for me.

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Peter — Sun, 08 Nov 2009 19:41:01 -0500

I installed it OK (after the Java switch), but once I start matlab I get the following
in the Command Window...is this something to worry about ?

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at apple.awt.CGraphicsEnvironment.resetDisplays(CGraphicsEnvironment.java:100)
at apple.awt.CGraphicsEnvironment.displayChanged(CGraphicsEnvironment.java:50)
at apple.awt.CToolkit$4.run(CToolkit.java:1310)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
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)
>>

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box java

Arnaud — Sun, 08 Nov 2009 20:24:01 -0500

> I just came across this problem too. I used Java Preferences to re-order the preferred versions of Java for applications (bottom half of first tab) to prefer the 32-bit over the 64-bit and was able to activate with no problems after that.

worked perfectly for me - thanks a lot!

Re: Fresh Matlab 2009a install on Snow Leopard -- out of the box

Brian Arnold — Tue, 10 Nov 2009 13:25:56 -0500

Hi Peter,

This is a known issue with Apple's Java and is reported on our web site.
It is not something to worry about, unless it keeps happening while
running MATLAB. If that happens, quit and restart MATLAB. We expect
that Apple will have a Java update available soon that resolves this issue.

- Brian

Peter wrote:
> I installed it OK (after the Java switch), but once I start matlab I get the following
> in the Command Window...is this something to worry about ?
>
> Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
> at apple.awt.CGraphicsEnvironment.resetDisplays(CGraphicsEnvironment.java:100)
> at apple.awt.CGraphicsEnvironment.displayChanged(CGraphicsEnvironment.java:50)
> at apple.awt.CToolkit$4.run(CToolkit.java:1310)
> at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
> 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)