hi,
I have a CMP entity bean and a simple test client. one of the bean methods
is
public void setClassification(Classification param) throws
LocalizedAppEventException {
if (param == null) {
ctx.setRollbackOnly();
throw new
LocalizedAppEventException("isis.masterdata.invalidClassification");
}
this.classification = param.intValue();
}
the client calls this method and another one, which is more or less
identical to the one above:
try {
spec.setStatus(null);
}
catch (LocalizedAppEventException e) {
// that's ok, ignore
}
try {
spec.setType(null);
}
catch (LocalizedAppEventException e) {
// that's ok, ignore
}
the first invocation is OK, the exception is thrown. on the second
invocation, though, the client hangs. the server produces this line in the
log file:
[Specification] LOCKING-WAITING (TRANSACTION) for id
com.tiscon.isis.masterdata.ejb.SpecificationPK@1e ctx.hash 2721646
tx:TransactionImpl:XidImpl [FormatId=257, GlobalId=c197//81, BranchQual=]
As far as I've understood earlier postings in the list, this message usually
occurs in case of a deadlock with non-reentrant beans. OK, my bean *is*
non-reentrant, but there is only one client thread, and, obviously, no
callbacks. If I uncomment the call to setRollbackOnly() everything works
fine. What's the problem here?
Thanks,
Achim
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