Help Desk Ticket Reference: https://na7.salesforce.com/500A0000007qyHU
project_key: SOA

The ESB Service Guide [1] contains the following description about the bpmToEsbVars element of the EsbActionHandler or EsbNotifier:

* bpmToEsbVars
This element is optional. It takes a list of sub-elements and uses them to map a jBPM context variable to an ESB Message location. Each of these mapping sub-elements can have the following attributes: 
[..]

  - default
    This attribute is optional. If the variable is not found within the jBPM context, the value of this field is taken instead. 

The section on 'default' attribute should be removed, as defining a default value is only supported on the esbToBpmVars mappings.

[1] http://docs.redhat.com/docs/en-US/JBoss_Enterprise_SOA_Platform/5/html/ESB_Services_Guide/ch05.html#id2346625