VisualVM CPU sampling not working

[Stephen Felts]

It was reported at https://github.com/oracle/visualvm/issues/20  CPU sampling not available - cannot access threads.

-----Original Message-----
From: Alan Snyder [mailto:javalists at cbfiddle.com] 
Sent: Tuesday, May 2, 2017 5:15 PM
To: jdk9-dev at openjdk.java.net
Subject: VisualVM CPU sampling not working

Is this a known problem? It resembles JDK-8165005. Makes it hard to investigate performance problems if the tools don't work. Are there other tools that work?

This is VisualVM 1.39 on an application running under jdk9-ea+166.

It reports:
 
Cannot access threads in target application.

The log file shows:
 
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:498)
  at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
  at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:498)
  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$NonNullMXBeanMapping.fromOpenValue(DefaultMXBeanMappingFactory.java:133)
  at com.sun.jmx.mbeanserver.DefaultMXBeanMappingFactory$ArrayMapping.fromNonNullOpenValue(DefaultMXBeanMappingFactory.java:584)
  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:258)

Caused: java.lang.reflect.UndeclaredThrowableException
  at com.sun.proxy.$Proxy16.dumpAllThreads(Unknown Source)
  at com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider.dumpAllThreads(ThreadInfoProvider.java:103)

[catch] at com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider.initialize(ThreadInfoProvider.java:88)
  at com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider.<init>(ThreadInfoProvider.java:54)
  at com.sun.tools.visualvm.sampler.SamplerImpl$11.run(SamplerImpl.java:485)
  at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
  at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)