As far as I can tell, the latest VisualVM (1.3.9) is unable to do CPU sampling or profiling on the latest EA build (9-ea+169-jigsaw-nightly-h6406-20170517).
Is this really the case, or am I missing something? Is someone working on this? I would think that performance analysis would be important during the EA period. Is there some other tool I should be using that works? Alan P.S. No response on serviceability-dev… > On May 2, 2017, at 5:39 PM, Mandy Chung <mandy.ch...@oracle.com> wrote: > > 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) >> >
