아래 코드가 org.datanucleus.exceptions.NucleusUserException의 결과로 나타나는 이유는 무엇입니까? Object Manager가 닫혀 있습니까? 예외는 query.getResultList()에서 throw 된 것으로 보입니다.Google App Engine - org.datanucleus.exceptions.NucleusUserException : 객체 관리자가 닫혔습니다.
public final void removeUserTokens(final String username) {
final Query query = entityManager.createQuery(
"SELECT p FROM PersistentLogin p WHERE username = :username");
query.setParameter("username", username);
for (Object token : query.getResultList()) {
entityManager.remove(token);
}
}
예외 :
org.datanucleus.exceptions.NucleusUserException: Object Manager has been closed
at org.datanucleus.ObjectManagerImpl.assertIsOpen(ObjectManagerImpl.java:3876)
at org.datanucleus.ObjectManagerImpl.getFetchPlan(ObjectManagerImpl.java:376)
at org.datanucleus.store.query.Query.getFetchPlan(Query.java:497)
at org.datanucleus.store.appengine.query.DatastoreQuery$6.apply(DatastoreQuery.java:611)
at org.datanucleus.store.appengine.query.DatastoreQuery$6.apply(DatastoreQuery.java:610)
at org.datanucleus.store.appengine.query.LazyResult.resolveNext(LazyResult.java:94)
at org.datanucleus.store.appengine.query.LazyResult$LazyAbstractListIterator.computeNext(LazyResult.java:215)
at org.datanucleus.store.appengine.query.AbstractIterator.tryToComputeNext(AbstractIterator.java:132)
at org.datanucleus.store.appengine.query.AbstractIterator.hasNext(AbstractIterator.java:127)
at org.datanucleus.store.appengine.query.LazyResult$AbstractListIterator.hasNext(LazyResult.java:169)
at com.mystuff.service.auth.PersistentTokenRepositoryImpl.removeUserTokens(PersistentTokenRepositoryImpl.java:90)
편집 : 나는 datanucleus의 로그 수준을 증가 이것이 내가 볼 것입니다.
FINE: Object Manager "[email protected]" opened for datastore "[email protected]"
Feb 25, 2010 7:21:38 AM org.datanucleus.ObjectManagerImpl initialiseLevel1Cache
FINE: Level 1 Cache of type "weak" initialised
Feb 25, 2010 7:21:38 AM org.datanucleus.JDOClassLoaderResolver classForName
FINE: Class "java.lang.PersistentLogin" was not found in the CLASSPATH [Class resolver called from org.datanucleus.util.Imports.resolveClassDeclaration (line=177)]
Feb 25, 2010 7:21:38 AM org.datanucleus.ObjectManagerImpl disconnectSMCache
FINE: Level 1 Cache cleared
Feb 25, 2010 7:21:38 AM org.datanucleus.ObjectManagerImpl postClose
FINE: Object Manager "[email protected]" closed
Feb 25, 2010 7:21:38 AM com.google.apphosting.utils.jetty.JettyLogger warn
WARNING: /j_spring_security_logout
Object Manager has been closed
org.datanucleus.exceptions.NucleusUserException: Object Manager has been closed
at org.datanucleus.ObjectManagerImpl.assertIsOpen(ObjectManagerImpl.java:3876)
at org.datanucleus.ObjectManagerImpl.getFetchPlan(ObjectManagerImpl.java:376)
@Transactional이 springframework에서 온다고 가정하십시오. –
org.springframework.transaction.annotation.Transactional –