Question

我正在运行Ubuntu 10.04 LTS和Eclipse版本：Helios Service Release 2 构建id：20110218-091，调试PHP。虽然每次都没有发生，但在我完成调试后，当我点击红色方块停止进程时，Eclipse屏幕变灰，然后停留在那里。顶部或系统监视器显示Eclipse正在使用剩余的CPU周期，在我的情况下，它在67-85％之间。它会保持这种状态，直到我杀死这个过程（我等了10分钟或更长时间）。日志中的最后一个错误是：插件net.sf.simpletest.eclipse无法加载类net.sf.simpletest.eclipse.launcher.SimpletestLaunchShortcut.Plug-in net.sf.simpletest.eclipse was unable to load class net.sf.simpletest.eclipse.launcher.SimpletestLaunchShortcut.

这刚刚开始发生，所以我倾向于认为我的机器有什么问题，来自Ubuntu的更新，内存???

Eclipse事件详细信息的输出如下。

欢迎任何建议。

eclipse.buildId=M20110210-1200
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.java.product
Command-line arguments:  -os linux -ws gtk -arch x86 -product org.eclipse.epp.package.java.product


Error
Tue Oct 11 14:35:03 EDT 2011
Plug-in net.sf.simpletest.eclipse was unable to load class net.sf.simpletest.eclipse.launcher.SimpletestLaunchShortcut.

org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter$TerminatingClassNotFoundException: An error occurred while automatically activating bundle net.sf.simpletest.eclipse (505).
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:121)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:453)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:338)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:232)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1197)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:904)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.debug.internal.ui.launchConfigurations.LaunchShortcutExtension.getDelegate(LaunchShortcutExtension.java:410)
at org.eclipse.debug.internal.ui.launchConfigurations.LaunchShortcutExtension.getLaunchConfigurations(LaunchShortcutExtension.java:505)
at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getParticipatingLaunchConfigurations(LaunchingResourceManager.java:486)
at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getLabel(LaunchingResourceManager.java:320)
at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels(LaunchingResourceManager.java:241)
at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$2.run(LaunchingResourceManager.java:138)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.osgi.framework.BundleException: The activator net.sf.simpletest.eclipse.SimpletestPlugin for bundle net.sf.simpletest.eclipse is invalid
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:156)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:751)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:284)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:417)
at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:265)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:106)
... 22 more
Caused by: java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at java.lang.Class.newInstance0(Class.java:372)
at java.lang.Class.newInstance(Class.java:325)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:151)
... 28 more
Caused by: org.eclipse.swt.SWTException: Invalid thread access
at org.eclipse.swt.SWT.error(SWT.java:4083)
at org.eclipse.swt.SWT.error(SWT.java:3998)
at org.eclipse.swt.SWT.error(SWT.java:3969)
at org.eclipse.swt.widgets.Display.error(Display.java:1203)
at org.eclipse.swt.widgets.Display.checkDevice(Display.java:751)
at org.eclipse.swt.widgets.Display.getSystemColor(Display.java:2068)
at net.sf.simpletest.eclipse.SimpletestPlugin.<clinit>(SimpletestPlugin.java:65)
... 35 more

Answer 1

原因很清楚。初始化类时抛出异常，这是由在非UI线程中访问SWT Display引起的。

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