Hi,
the BPEL 1.1 spec defines a <to> element, its type inherits a "variable"
attribute which JAXB claims to be unexpected when unmarshalling an
instance document with validation turned on.
Both xerces (the one packaged with jwsdp-1.2) and xsv accept the
instance document as valid according to the schema. Please see the
attachment (especially README.txt) for more details.
I'm sorry: I tried to enter this into the bug database, but I am having
login problems.
Thomas