When using jBPM tooling to populate input/output tabs on ESB node properties view, the following XML is generated:

----------------------------------
<jbpmToEsbVars>
<mapping jbpm="jbpmName1" esb="esbName1"></mapping>
</jbpmToEsbVars>
<returnVars>
<mapping jbpm="jbpmName1" esb="esbName1"></mapping>
</returnVars>
----------------------------------

That will not deploy on SOA-P 4.3 (or 4.2 I don't think). It needs to look like this:

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<bpmToEsbVars>
<mapping bpm="jbpmName1" esb="esbName1" />
</bpmToEsbVars>
<esbToBpmVars>
<mapping esb="esbName1" bpm="jbpmName1" />
</esbToBpmVars>
----------------------------------

Note the "bpm" instead of "jbpm" and the "esbToBpmVars" instead of "returnVars"