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[eclipselink-users] StackOverflowError while query
|
Hi,
while i query the database using a named query i run into a
StackOverflowError. I've put the whole stacktrace here:
http://vuurwerk.pastebin.com/Dbrsx9aV
The code:
<snip>
protected final T findFirstByNamedQuery(final EntityManager em,
final String namedQuery, QueryParameter<?>... queryParameters) {
Query qry = em.createNamedQuery(namedQuery);
for (QueryParameter<?> queryParameter : queryParameters)
qry.setParameter(queryParameter.name, queryParameter.value);
try {
Object result = qry.getSingleResult();
T resultRecord = ((result != null &&
_classType.isInstance(result)) ? _classType.cast(result) : null);
resultRecord.setModel(this);
return resultRecord;
} catch (NoResultException nre) {
return null;
}
}
</snap>
The JPQL of the named query: SELECT lutp FROM LookupProfile lutp WHERE
lutp.name = :name
The first weird thing is that the same code works in another part of
my application. I just use the same method where i need to do the same
but in the first part of my application the query works correctly and
at the other part where I need the same result just for other
operations i get this StackOverflowError.
Another weird thing: The error occurs only if the query will give
definitely a result, if i use a name where I know there will be no
result the error does not happen.
I've checked if there is anything odd to the other part, but there
seems to be no difference :(
I have no idea why this happen :(
If someone need more information please ask me about it.
-- Christian