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Method invocation exceptions after Pega 7.3 update



Upgraded from Pega 7.1.6 to Pega 7.3 on Weblogic 10.3.6, and now seeing method invocation exceptions after server and Pega engine start up.

Error Messages

2017-08-21 09:48:25,565 [fault (self-tuning)'] [ STANDARD] [ ] [ ] ( web.impl.WebStandardImpl) ERROR - Exception during processing of http request
javax.ejb.EJBException: EJB Exception: : java.lang.RuntimeException: Problem during method invocation (invokeEngine)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingException(Ap
Caused by: java.lang.NoClassDefFoundError: javax/servlet/AsyncContext
at com.pega.pegarules.session.internal.serverpush.atmosphere.AtmospherePushEngine.handleRequestHook(
at com.pega.pegarules.session.internal.serverpush.AbstractPushEngine.handleRequest(
at com.pega.pegarules.session.internal.engineinterface.service.AsyncRequestAPI.processRequest(
at com.pega.pegarules.session.internal.engineinterface.service.AsyncRequestAPI.invoke(
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(
at com.pega.pegarules.session.internal.engineinterface.etier.ejb.EngineBean.invokeEngine(
at sun.reflect.GeneratedMethodAccessor191.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingException(
... 52 more
Caused by: java.lang.ClassNotFoundException: javax.servlet.AsyncContext
at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClass(
at com.pega.pegarules.bootstrap.loader.PRAppLoader.loadClass(

Steps to Reproduce

  1. Update PegaRULES database to Pega 7.3.
  2. Deploy prpc_wls_jee4 from archives folder of media on Weblogic 10.3.6.
  3. Start the JVM.

Root Cause

A defect or configuration issue in the operating environment. WebLogic Server version is not supported for Pega 7.3


Make the following change to the operating environment:

Upgrade Weblogic application server to server 12c, preferably 12.2.1 (using Oracle Java 8).
Suggest Edit

Published November 3, 2017 - Updated October 8, 2020

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