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Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError"

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Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError"

Hi, I'm running Appdynamics since a while on a Tomcat server (very basic setup) and I'm seing a lot of thos Exceptions: "Agent Internal: com.singularity.ReflectionError" - around 400/min.

I searched the community site as well as on Google but I found anything, and I'm worried that this could in some way impact the services running on Tomcat.

 

Does someone has a clue about what's causing those exceptions?

 

Thanks, Davide

Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError"
8 REPLIES 8
AppDynamics Team

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

Hi Davide,

 

I did a search, too, and found this community post: https://community.appdynamics.com/t5/Archive/Agent-Internal-Reflection-Errors-thousands-of-errors-ev...

 

One recommendation is to "try enabling verbose logging to see if you get the stack trace for this error." Give that a go, first, and I'll keep looking.

 

Thanks,

 

Cody

 
Builder

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

I'm seeing about 3000 occurances of this exception every minute across my java applications.  This essentially makes all of the exception metrics useless.

 

How do I ignore this permanently ignore this exception in the agent?

Moderator

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

Note the underlying issue here is fixed in v4.2.4 and v4.3 v4.3.8.7 and v4.4+ of the agent.  Can I ask what version you are running?

 

Also, in v4.3.4+ internal agent errors are no longer counted against the application totals.



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Builder

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

I am running version 4.2.15.4-1 of the agent, so this should be corrected.  Glad to know these exceptions no longer impact the application in 4.3!  

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

Hi, 

 

We are using agent version 4.3.2.2 and we still see this agent exception (see attached). How do we ignore these exceptions? Please advise

 

Thanks!

Sundar

Moderator

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

Can you please post a full set of agent logs, either here or in a support case.

 

Warm regards,

Peter



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Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

Re: Java agent on Tomcat is reporting a lot of "Agent Internal: com.singularity.ReflectionError

Hi

 

Can you please confirm if this issue has been fixed in 4.3.2.2 agent version or how to ignore this exception?

 

I already provided the logs that were asked.

 

Thanks!