Description of problem:

While https://bugzilla.redhat.com/show_bug.cgi?id=1310739 fixed the performance problems, unfortunately other problems, in particular custom-type serialization, were caused by the change.

Version-Release number of selected component (if applicable):

6.3 and 6.2

This BZ is for 6.2

How reproducible:

Always

Steps to Reproduce:
1. Do a REST operation

Actual results:

Not all REST calls are completing correctly.

The 2 most common issues are either:

• "Caused by: javax.xml.bind.PropertyException: property "com.ibm.jtc.jax.xml.bind.marshaller.CharacterEscapeHandler" must be an instance of type com.ibm.jtc.jax.xml.bind.marshaller.CharacterEscapeHandler, not org.kie.services.client.serial"
• REST operations involving custom-type (user-defined) serialization fail

Expected results:

All REST calls complete successfully.