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Incorrect clipboard display on left pane



The left pane of PRPC clipboard was not displayed correctly.

Error Messages

The following exceptions were found in Pega log:

org.apache.xml.serializer.utils.WrappedRuntimeException: org.apache.xml.serializer.ToXMLSAXHandler cannot be cast to org.apache.xml.serializer.SerializationHandler
    at org.apache.xml.serializer.SerializerFactory.getSerializer(

Steps to Reproduce

1. Add the third-party jar file that has the SerializationHandler and ToXMLSAXHandler classes.
2. Remove the marker file, and restart Tomcat.

Root Cause

This is a class conflict issue. These classes are in the serializer jar, which is in pr_engineclasses loaded to the database. If different versions of these classes are in the third-party jar, which is added to the /tomcat/lib folder, the WrappedRuntimeException will be thrown.


Perform the following local-change:
1. Add the serializer-2.7.1.jar, which can be found in PRPC installation package, to the Tomcat endorsed directory.
2. Restart Tomcat.
The Tomcat endorsed directory is specified by the -Djava.endorsed.dirs argument. The default value of this option is $CATALINA_HOME/endorsed.

Published April 1, 2016 - Updated October 8, 2020

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