The XmlHandler is used to marshal/unmarshal request/responses in the IPC modules used for Minion.

Currently, the XmlHandler relies on the default event handler, which can swallow certain exceptions such as failures in XmlAdapter s which can leave objects in inconsistent states (i.e. a member variable is null because the adapter failed).

This behavior differs from unmarshaling/marshaling directly using JaxbUtils, where we set a custom event handler.