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Support Article

Pega 7.3 Installation problem on Cluster environment



Error occurs when starting the Pega 7.3 application on WebSphere Application Server (WAS) and Java Version 7.0.1.

Error Messages

java.lang.VerifyError: JVMCFRE006 invalid StackMap/StackMapTable attribute; class=com/pega/pegarules/exec/internal/basic/dictionary/ConclusionCacheImpl, method=main([Ljava/lang/String;)V, pc=231
    at java.lang.ClassLoader.defineClassImpl(Native Method)
    at java.lang.ClassLoader.defineClass(
    at com.pega.pegarules.bootstrap.loader.PRAppLoader.findClassInternal(
    at com.pega.pegarules.bootstrap.loader.PRAppLoader.findClass(
    at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClassInternal(
    at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClass(
    at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClass(
    at com.pega.pegarules.exec.internal.PRExecProviderImpl.initialize(
    at com.pega.pegarules.common.PREngineProvider.<clinit>(

Steps to Reproduce

  1. Install the application EAR.
  2. Start the application.

Root Cause

A defect or configuration issue in the operating environment.


Make the following change to the operating environment:

Remove the Wily configuration .

Contact Wily support for additional support if required in the environment.


Published July 23, 2018 - Updated October 8, 2020

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