“java.lang.NoSuchFieldError: NONE” in hibernate with Spring 3, maven, JPA, c3p0

Question

Problem:

Hibernate is not executing queries correctly. It errors with a problem that appears to be related to slf4j but using any recommended fixes don\'t seem to wo

Answer 1

It's complaining about this code line in org.hibernate.ejb.QueryImpl:

private javax.persistence.LockModeType jpaLockMode
   = javax.persistence.LockModeType.NONE;

Since javax.persistence.LockModeType.NONE is new in JPA2, I suspect you also have JPA1 on your classpath somewhere. Find and remove it.