485 2011-03-24 02:57:29 +0100 Freeze on loadLibrary of AWT in Eclipse RCP app inside GLProfile.initSingleton() on Mac OS X 2011-04-03 22:07:14 +0200 1 1 3 JogAmp Jogl macosx 2 pc_x86_64 macosx VERIFIED INVALID --- normal --- 1 wwalker3 wwalker3 --- --- oldest_to_newest 921 0 wwalker3 2011-03-24 02:57:29 +0100 The loadLibrary of AWT inside GLProfile.initSingleton() freezes on Mac OS X 10.6.7, nvidia GeForce 320M, Java 1.6.0_24. It works fine in a standalone SWT app, but freezes in an Eclipse RCP app. I can force it not to load AWT by setting -Djava.awt.headless=true, but I'm not sure the app will work that way -- still debugging later problems. Here's the stack trace: Daemon Thread [Thread-1] (Suspended) ClassLoader$NativeLibrary.load(String) line: not available [native method] ClassLoader.loadLibrary0(Class, File) line: 1823 ClassLoader.loadLibrary(Class, String, boolean) line: 1720 Runtime.loadLibrary0(Class, String) line: 823 System.loadLibrary(String) line: 1045 LoadLibraryAction.run() line: 50 AccessController.doPrivileged(PrivilegedAction<T>) line: not available [native method] Toolkit.loadLibraries() line: 1605 Toolkit.<clinit>() line: 1627 JAWTJNILibLoader$1.run() line: 58 AccessController.doPrivileged(PrivilegedAction<T>) line: not available [native method] JAWTJNILibLoader.loadAWTImpl() line: 53 JAWTUtil.<clinit>() line: 66 NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method] NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39 DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 Method.invoke(Object, Object...) line: 597 ReflectionUtil.callMethod(Object, Method, Object[]) line: 267 NativeWindowFactory.initSingleton(boolean) line: 176 GLProfile.initProfilesForDefaultDevices(boolean) line: 1095 GLProfile.access$000(boolean) line: 66 GLProfile$1.run() line: 107 AccessController.doPrivileged(PrivilegedAction<T>) line: not available [native method] GLProfile.initSingleton(boolean) line: 105 Activator.<clinit>() line: 67 NativeConstructorAccessorImpl.newInstance0(Constructor, Object[]) line: not available [native method] NativeConstructorAccessorImpl.newInstance(Object[]) line: 39 DelegatingConstructorAccessorImpl.newInstance(Object[]) line: 27 Constructor<T>.newInstance(Object...) line: 513 Class<T>.newInstance0() line: 355 Class<T>.newInstance() line: 308 BundleHost(AbstractBundle).loadBundleActivator() line: 151 BundleContextImpl.start() line: 751 BundleHost.startWorker(int) line: 370 BundleHost(AbstractBundle).start(int) line: 284 SecureAction.start(Bundle, int) line: 417 BundleLoader.setLazyTrigger() line: 265 EclipseLazyStarter.postFindLocalClass(String, Class, ClasspathManager) line: 106 ClasspathManager.findLocalClass(String) line: 453 DefaultClassLoader.findLocalClass(String) line: 216 BundleLoader.findLocalClass(String) line: 393 BundleLoader.findClassInternal(String, boolean, ClassLoader) line: 469 BundleLoader.findClass(String, boolean) line: 422 BundleLoader.findClass(String) line: 410 DefaultClassLoader.loadClass(String, boolean) line: 107 DefaultClassLoader(ClassLoader).loadClass(String) line: 248 BundleLoader.loadClass(String) line: 338 BundleHost.loadClass(String, boolean) line: 232 BundleHost(AbstractBundle).loadClass(String) line: 1197 EquinoxRegistryStrategy(RegistryStrategyOSGI).createExecutableExtension(RegistryContributor, String, String) line: 174 ExtensionRegistry.createExecutableExtension(RegistryContributor, String, String) line: 904 ConfigurationElement.createExecutableExtension(String) line: 243 ConfigurationElementHandle.createExecutableExtension(String) line: 55 EclipseAppHandle.run(Object) line: 191 EclipseAppLauncher.runApplication(Object) line: 110 EclipseAppLauncher.start(Object) line: 79 EclipseStarter.run(Object) line: 369 EclipseStarter.run(String[], Runnable) line: 179 NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method] NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39 DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 Method.invoke(Object, Object...) line: 597 Main.invokeFramework(String[], URL[]) line: 620 Main.basicRun(String[]) line: 575 Main.run(String[]) line: 1408 Main.main(String[]) line: 1384 923 1 wwalker3 2011-03-24 03:07:16 +0100 The bug 486 shows up after I bypass this one. Not sure if the lack of AWT load causes bug 486 (it also happens if I omit GLProfile.initSingleton() instead of using -Djava.awt.headless). 925 2 wwalker3 2011-03-25 03:04:03 +0100 This bug has been seen in the wild at http://wadeawalker.wordpress.com/2010/10/09/tutorial-a-cross-platform-workbench-program-using-java-opengl-and-eclipse/#comment-52. He mentions the same behavior I've seen, where Eclipse sticks at the flash screen. The problem seems to be when loading the AWT library -- it freezes inside the loadLibrary() call. 930 3 wwalker3 2011-04-02 23:58:17 +0200 Setting -Djava.awt.headless=true fixes this problem, and also fixes a separate problem where standalone (non-RCP) SWT apps freeze when you quit (on Mac OS X). Apparently loading libawt.jnilib if you're using SWT on the Mac is just a bad idea. The thread at http://lists.apple.com/archives/Java-dev/2008/Dec/msg00249.html says that Apple's JDK checks for -XstartOnFirstThread=true and if so doesn't load AWT. Perhaps we should check for this in NativeWindowFactory.initSingleton()? Or maybe run all SWT apps with -Djava.awt.headless=true on the Mac? 931 4 wwalker3 2011-04-03 22:07:14 +0200 Apparently the right answer is to set -Djava.awt.headless=true on Mac OS X RCP projects. The RuntimeMXBean can't see the -XstartOnFirstThread argument to the JVM, so we can't piggyback on that. And there's no way for GLProfile.initSingleton() to know that a program is going to use SWT later, so I don't think we can change JOGL to fix this.