Executing a jBPM process results in a DocumentException on SOA-P 4.3.0 CP02 with Sybase

Issue

We are using jBPM inside SOA-P 4.3.0 CP02 to orchestrate services. After a jBPM process instance is created and signalled to the first node with an EsbActionHandler, process execution fails with the following exception:

ERROR [org.jbpm.instantiation.FieldInstantiator] couldn't parse bean configuration : 
            <esbCategoryName xmlns="urn:jbpm.org:jpdl-3.2">BPM_Orchestration_Service1</esbCategoryName>
            <esbServiceName xmlns="urn:jbpm.org:jpdl-3.2">Service1</esbServiceName>
            <bpmToEsbVars xmlns="urn:jbpm.org:jpdl-3.2"><mapping bpm="theBo

org.dom4j.DocumentException: Error on line 4 of document  : The value of attribute "bpm" associated 
with an element type "mapping" must not contain the '<' character. 
Nested exception: The value of attribute "bpm" associated with an element type "mapping" 
must not contain the '<' character.
    at org.dom4j.io.SAXReader.read(SAXReader.java:482)
    at org.dom4j.DocumentHelper.parseText(DocumentHelper.java:278)
    at org.jbpm.instantiation.FieldInstantiator.parseConfiguration(FieldInstantiator.java:106)
    at org.jbpm.instantiation.FieldInstantiator.instantiate(FieldInstantiator.java:57)
    at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:164)
    at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:126)