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JVMD Agent Fails on Startup - ClassCastException: (Doc ID 1512391.1)

Last updated on AUGUST 25, 2021

Applies to:

APM - Application Performance Management - Version to [Release 12.1]
Information in this document applies to any platform.


After deploying JVMD agent to EM target (Weblogic Server 10.x), it fails on startup with following exception :

Exception in thread "Thread-148" java.lang.ClassCastException:
at jamagent.ClientHttpRequest.<init>(
at jamagent.AsyncClient.createRequest(
at jamagent.AsyncClient.prepareRequestWithDigest(
at jamagent.AsyncClient.sendDataBuffer(
at jamagent.AsyncClient.sendDataBuffer(
at jamagent.Communicator.sendData(
at jamagent.Controller.handshake(
at jamagent.Controller.controller(
at jamagent.Controller.init(


The exception is reported in the EM target - Weblogic Server log file (stdout/stderr).


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