Java (Java Agent, Installation, JVM, and Controller Installation)

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Seeing Error in agent log after starting appd java agent on cassandra node.

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Seeing Error in agent log after starting appd java agent on cassandra node.

I have started testing appd for cassandra followed steps mentioned in documentation, i can see agent is connected to controller, but not data is getting polled. Seeing following message in agent.log

[epollEventLoopGroup-2-11] 21 Sep 2017 19:31:49,820 ERROR CQLRemotingIncomingCorrelationInterceptor - A reflection error occurred while trying to get a correlation header.  This error was caught and handled: com.singularity.ee.agent.util.reflect.a: Field [body] of class [io.netty.util.internal.RecyclableArrayList] does not exist

I can see agent startup from cassandra log,but also seeing this WARN message

Running obfuscated agent
Started AppDynamics Java Agent Successfully.
I> No access restrictor found, access to any MBean is allowed
log4j:WARN No appenders could be found for logger (com.singularity.MissingMethodGenerator).
log4j:WARN Please initialize the log4j system properly.
Exception caught : java.util.zip.ZipException: error in opening zip file trying to preload agent classes
java.util.zip.ZipException: error in opening zip file
        at java.util.zip.ZipFile.open(Native Method)
        at java.util.zip.ZipFile.<init>(ZipFile.java:219)
        at java.util.zip.ZipFile.<init>(ZipFile.java:149)
        at java.util.zip.ZipFile.<init>(ZipFile.java:163)
        at com.singularity.ee.agent.appagent.kernel.classloader.AgentClassLoader.a(AgentClassLoader.java:724)
        at com.singularity.ee.agent.appagent.kernel.classloader.AgentClassLoader.preLoadAgentClasses(AgentClassLoader.java:699)
        at com.singularity.ee.agent.appagent.kernel.JavaAgent.initialize(JavaAgent.java:259)
        at com.singularity.ee.agent.appagent.kernel.JavaAgent.initialize(JavaAgent.java:208)
     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 com.singularity.ee.agent.appagent.AgentEntryPoint$1.run(AgentEntryPoint.java:244)

Directory user permisssions are set to same user as cassandra.

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Seeing Error in agent log after starting appd java agent on cassandra node.