Cocoa AWT: Not running on AppKit thread 0 when expected.

[Mike Swingler]

On Oct 22, 2011, at 4:53 PM, Michael Hall wrote:

> 011-10-22 18:08:21.303 java[278:8707] Cocoa AWT: Not running on AppKit thread 0 when expected. (
> 	0   liblwawt.dylib                      0x16da9ce4 +[ThreadUtilities getJNIEnv] + 46
> 	1   liblwawt.dylib                      0x16d9392f -[CDragSource init:component:peer:control:transferable:triggerEvent:dragPosX:dragPosY:modifiers:clickCount:timeStamp:cursor:dragImage:dragImageOffsetX:dragImageOffsetY:sourceActions:formats:formatMap:] + 101
> 	2   liblwawt.dylib                      0x16d93d98 Java_sun_lwawt_macosx_CDragSourceContextPeer_createNativeDragSource + 767
> 	3   ???                                 0x02491e0a 0x0 + 38346250
> 	4   ???                                 0x0248a404 0x0 + 38315012
> )
> 2011-10-22 18:08:21.347 java[278:8707] 	Please file a bug report at http://java.net/jira/browse/MACOSX_PORT with this message and a reproducible test case.
> 
> There appear to be a couple issues open with this error message although they don't appear to concern drag and drop in a text component.
> 
> I believe I've also seen there are currently known issues concerning drag and drop.
> 
> (Incidentally I wasn't trying to drag and drop, just select some text for copying).
> 
> Should I bug report?
> 
> I am using Eclipse which I normally don't. Should I use some start on main thread jvm arg? I seem to remember this was recommended for launching in some situations, if not all? Does this possibly just mean I'm not running on the EDT when I should be?

Yes, please file a bug report at <http://java.net/jira/browse/MACOSX_PORT>. Either the code needs to be fixed to obtain a non-AppKit thread JNIEnv*, or the operation needs to happen on the AppKit Thread 0.

Thanks,
Mike Swingler
Java Engineering
Apple Inc.