java - 无法在 VisualVM 中打开某些应用程序

Question

我正在使用 Ubuntu 14.04 和 Oracle JDK 8。我想使用 VisualVM 检查我的应用程序的性能。我可以检查 JDownloader 等其他应用程序，但无法检查我自己的应用程序和 Eclipse 4.3。在我全新安装 Ubuntu 之前，我使用的是 JDK 7，我没有任何问题并且无需任何配置即可使用它。它给出以下日志。

SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor com.sun.tools.visualvm.core.ui.DataSourceWindowManager$1
java.lang.IllegalArgumentException: Unexpected composite type for ThreadInfo
    at sun.management.ThreadInfoCompositeData.validateCompositeData(ThreadInfoCompositeData.java:372)
    at sun.management.ThreadInfoCompositeData.getInstance(ThreadInfoCompositeData.java:68)
    at java.lang.management.ThreadInfo.<init>(ThreadInfo.java:263)
    at java.lang.management.ThreadInfo.from(ThreadInfo.java:794)
Caused: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
    at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
    at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$CompositeBuilderViaFrom.fromCompositeData(DefaultMXBeanMappingFactory.java:1018)
Caused: java.io.InvalidObjectException: Failed to invoke from(CompositeData)
    at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory.invalidObjectException(DefaultMXBeanMappingFactory.java:1457)
    at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$CompositeBuilderViaFrom.fromCompositeData(DefaultMXBeanMappingFactory.java:1021)
    at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$CompositeMapping.fromNonNullOpenValue(DefaultMXBeanMappingFactory.java:919)
    at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$NonNullMXBeanMapping.fromOpenValue(DefaultMXBeanMappingFactory.java:133)
    at com.sun.jmx.mbeanserver.ConvertingMethod.fromOpenReturnValue(ConvertingMethod.java:131)
    at com.sun.jmx.mbeanserver.MXBeanProxy.invoke(MXBeanProxy.java:168)
    at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:252)
Caused: java.lang.reflect.UndeclaredThrowableException
    at com.sun.proxy.$Proxy8.getThreadInfo(Unknown Source)
    at com.sun.tools.visualvm.jmx.impl.JmxSupport.isReadOnlyConnection(JmxSupport.java:95)
    at com.sun.tools.visualvm.jmx.impl.JmxModelImpl.isTakeThreadDumpSupported(JmxModelImpl.java:311)
    at com.sun.tools.visualvm.application.views.threads.ApplicationThreadsViewProvider.resolveThreads(ApplicationThreadsViewProvider.java:65)
    at com.sun.tools.visualvm.application.views.threads.ApplicationThreadsViewProvider.supportsViewFor(ApplicationThreadsViewProvider.java:29)
    at com.sun.tools.visualvm.application.views.threads.ApplicationThreadsViewProvider.supportsViewFor(ApplicationThreadsViewProvider.java:25)
    at com.sun.tools.visualvm.core.ui.DataSourceViewsManager.getViews(DataSourceViewsManager.java:116)
    at com.sun.tools.visualvm.core.ui.DataSourceWindowManager.openWindowAndAddView(DataSourceWindowManager.java:169)
    at com.sun.tools.visualvm.core.ui.DataSourceWindowManager.access$000(DataSourceWindowManager.java:30)
    at com.sun.tools.visualvm.core.ui.DataSourceWindowManager$1.run(DataSourceWindowManager.java:80)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1393)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2005)

Answer 1

使用 jvm 参数运行 eclipse 和您的应用程序 -Duser.language=en -Duser.country=us ...
然后您将能够使用 jvisualvm 进行分析。

对于 eclipse，将这两行放在 eclipse.ini 中

-Duser.language=en
-Duser.country=us

也许您预装的 Ubuntu 的语言设置为英语，您没问题。