serviceability-dev (cc’ed) is the proper mailing list for this issue and so bcc jdk9-dev.
https://bugs.openjdk.java.net/browse/JDK-8167121 has been pushed to jdk8u-dev. We will need to get this fix in a 8u release. Mandy > On May 2, 2017, at 2:15 PM, Alan Snyder <javali...@cbfiddle.com> wrote: > > 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) >
