StackOverflow2013

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POHow to diagnose an Invalid thread access SWTException?
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copied!<p>We're customizing an Eclipse RCP based tool for a client. They have trouble loading it on one of their computers (it works on others) and have provided the following error log. </p> <blockquote> <p>!SESSION 2009-01-23 12:09:05.593 ----------------------------------------------- eclipse.buildId=unknown java.version=1.5.0_12 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB Command-line arguments: -os win32 -ws win32 -arch x86</p> <p>!ENTRY org.eclipse.osgi 4 0 2009-01-23 12:09:07.500 !MESSAGE Bundle com.yantra.yfc.rcp.desktop.ri not found.</p> <p>!ENTRY org.eclipse.osgi 4 0 2009-01-23 12:09:11.906 !MESSAGE Application error !STACK 1 org.eclipse.swt.SWTException: Invalid thread access at org.eclipse.swt.SWT.error(SWT.java:3374) at org.eclipse.swt.SWT.error(SWT.java:3297) at org.eclipse.swt.SWT.error(SWT.java:3268) at org.eclipse.swt.widgets.Display.error(Display.java:978) at org.eclipse.swt.widgets.Display.checkDevice(Display.java:638) at org.eclipse.swt.graphics.Device.dispose(Device.java:261) at com.yantra.yfc.rcp.YRCApplication.run(YRCApplication.java:176) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948)</p> </blockquote> <p>I have googled the exception but this seems to happen mostly when people try to develop applications using different threads. Since we don't see this problem on any other computer I'm at a loss as to what might be causing it.</p> <p>It must be a configuration problem on the machine in question, as the code is from the vendor (so presumably well tested) and works on every other machine we've tested it on. </p> <p>Does anyone have any suggestions about what might be behind the problem for that computer? Or suggestions about lines of investigation which might reveal the issue? </p>

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