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Support Article

Upgrade to 7.2.1 fails with NullPointerException



Upgrading PRPC system from 7.1.6 to 7.2.1 fails.

Error Messages

    at java.util.HashSet.<init>(
    at com.pega.pegarules.generation.internal.library.LibraryUtilityBase.<clinit>(
    at java.lang.J9VMInternals.initializeImpl(Native Method)
    at java.lang.J9VMInternals.initialize(
    ... 27 more

Steps to Reproduce

Run ./ command on command line to upgrade rules schema

Root Cause

A defect or configuration issue in the operating environment. From the log files see that you are using the db2jcc.jar which is a JDBC 3.0 compatible driver.  Per the platform support guide you need to be using db2jcc4.jar which is a JDBC 4.0 compatible driver.  


Make the following change to the operating environment: 

In the file update the pega.jdbc.driver.jar property to use the db2jcc4.jar JDBC driver jar and resume the upgrade.

Published October 27, 2016 - Updated October 8, 2020

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