Cannot fetch jmx counter for GC with Java SDK agent

[usecloud]

Expected behavior

I am trying to fetch data from mbeans about last GC duration but I am receiving error

Actual behavior

RROR 18-06-2019 20:59:52.694+0000, 27(PerformanceCounterContainer-0): Failed to fetch JMX object 'java.lang:type=GarbageCollector,name=PS MarkSweep' with attribute 'LastGcInfo.#duration': 'java.lang.ClassCastException: sun.management.GcInfoCompositeData cannot be cast to javax.management.openmbean.CompositeDataSupport'
ERROR 18-06-2019 20:59:52.695+0000, 27(PerformanceCounterContainer-0): Error while fetching JMX data: 'java.lang.ClassCastException: sun.management.GcInfoCompositeData cannot be cast to javax.management.openmbean.CompositeDataSupport', The PC will be ignored
TRACE 18-06-2019 20:59:52.697+0000, 27(PerformanceCounterContainer-0): Stack trace generated is java.lang.ClassCastException: sun.management.GcInfoCompositeData cannot be cast to javax.management.openmbean.CompositeDataSupport
at com.microsoft.applicationinsights.internal.jmx.JmxDataFetcher.fetch(JmxDataFetcher.java:113)
at com.microsoft.applicationinsights.internal.jmx.JmxDataFetcher.fetch(JmxDataFetcher.java:72)
at com.microsoft.applicationinsights.internal.perfcounter.AbstractJmxPerformanceCounter.report(AbstractJmxPerformanceCounter.java:64)
at com.microsoft.applicationinsights.internal.perfcounter.PerformanceCounterContainer$1.run(PerformanceCounterContainer.java:251)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

To Reproduce

Steps to reproduce the behavior:
My configuration in ApplicationInsight

Sample Application

The application is running on Tomcat 9

System information

Please provide the following information:

• SDK Version: 2.3.1
• OS type and version: Linux
• Application Server type and version (if applicable): Tomcat with Java 8
• Using spring-boot? no
• Additional relevant libraries (with version, if applicable):

Logs

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Screenshots

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[littleaj]

@usecloud It looks like LastGcInfo.#duration is the issue. I don't think # is a valid name character. Try LastGcInfo.duration. If that doesn't work, please share your perf counter configuration from ApplicationInsights.xml

[JacekCzernik]

without # is not working either

[littleaj]

We've found the issue and plan to fix in the next service release.

[trask]

This is fixed now in Preview.7