About client

api-jpa

javax.persistence.PessimisticLockException

Thrown by the persistence provider when an pessimistic locking conflict occurs.(Exception of JPA)

 
api-jpa

javax.persistence.LockTimeoutException

Thrown by the persistence provider when an pessimistic locking conflict occurs that does not result in transaction rollback.(Exception of JPA)

 
issue

Unexpected exception (Error 990) - NullPointerException

I'm using Version 2.5.4_05 Maybe this Exception is created by calling em.merge()  - et least this is what I do in the named line. ... the given position doesn't show up on the log of the client code. I just found out about the null pointer by writing an ...

 
api-jpa

javax.persistence.EntityNotFoundException

Thrown by the persistence provider when an entity reference obtained by EntityManager.getReference is accessed but the entity does not exist.(Exception of JPA)

 
api-jpa

javax.persistence.PersistenceException

Thrown by the persistence provider when a problem occurs.(Exception of JPA)

 
api-jpa

javax.persistence.EntityExistsException

Thrown by the persistence provider when EntityManager.persist(Object) is called and the entity already exists.(Exception of JPA)

 
api-jpa

javax.persistence.NonUniqueResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult() is executed on a query and there is more than one result from the query.(Exception of JPA)

 
doc

java.lang.Exception

The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.(Exception of java.langException Exception)

 
api-jpa

javax.persistence.QueryTimeoutException

Thrown by the persistence provider when a query times out and only the statement is rolled back.(Exception of JPA)

 
api-jpa

javax.persistence.NoResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult()is executed on a query and there is no result to return.(Exception of JPA)