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Unable to install Pega 7.4 EAR on WAS



Unable to install Pega 7.4 Enterprise Archive (EAR) on WebSphere with Java 1.8_64.

Error Messages

Invoking RMIC.
okToInvokeInJVM true
error: Invalid class file format in your_path/profiles/your_1Profile/wstemp/appmgmt/mbean/AppManagement_16301f4cf48_1/app_16301fac4e3/dpl/f9f24f0a/81b8f744/EarContent/APP-INF/lib/prbootstrap-api.jar(com/pega/pegarules/internal/etier/interfaces/Engine.class). The major.minor version '52.0' is too recent for this tool to understand.
error: Class com.pega.pegarules.internal.etier.interfaces.Engine not found in class com.pega.pegarules.internal.etier.interfaces.EJSRemoteStatelessEngineBMT_f2439d86.
error: Invalid class file format in your_path/profiles/your_1Profile/wstemp/appmgmt/mbean/AppManagement_16301f4cf48_1/app_16301fac4e3/dpl/f9f24f0a/81b8f744/EarContent/APP-INF/lib/prbootstrap-api.jar(com/pega/pegarules/internal/etier/interfaces/EngineHome.class). The major.minor version '52.0' is too recent for this tool to understand.

Steps to Reproduce

Prepare the out-of-the-box EAR file and deploy it.

Root Cause

A defect or configuration issue in the operating environment.
WebSphere profile must be updated to use JDK 1.8.


Make the following change to the operating environment:
  1. Run the WebSphere Application Server (WAS) managesdk command.
  2. Ensure to replace the <WAS_Home> with a customized value to set the Deployment Manager's default SDK to SDK 1.7 and redeploy the Pega EAR.

    <WAS_Home>/bin>./ -enableprofileall -sdkName 1.7_64 -enableServers
    CWSDK1017I: Profile Dmgr01 now enabled to use SDK 1.7_64.
For more information, refer to: 

Note: If required, a single profile can be updated using the
managesdk command.

Suggest Edit

Published July 23, 2018 - Updated December 2, 2021

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