org.hibernate.HibernateException: proxy handle is no longer valid at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.errorIfInvalid(AbstractProxyHandler.java:63) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final] at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:100) ~[hibernate-core-4.1.6.Fina
l.jar:4.1.6.Final]
at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at $Proxy63.getWrappedObject(Unknown Source) ~[na:na]
at org.hibernate.engine.jdbc.internal.JdbcResourceRegistryImpl.close(JdbcResourceRegistryImpl.java:215) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at org.hibernate.engine.jdbc.internal.JdbcResourceRegistryImpl.cleanup(JdbcResourceRegistryImpl.java:189) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at org.hibernate.engine.jdbc.internal.JdbcResourceRegistryImpl.close(JdbcResourceRegistryImpl.java:206) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.close(LogicalConnectionImpl.java:197) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.close(JdbcCoordinatorImpl.java:141) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl.close(TransactionCoordinatorImpl.java:276) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]

at org.hibernate.internal.SessionImpl.close(SessionImpl.java:353) ~[hibernate-core-4.1.6.Final.jar:4.1.6.Final]
at org.hibernate.ejb.EntityManagerImpl.close(EntityManagerImpl.java:137) ~[hibernate-entitymanager-4.1.6.Final.jar:4.1.6.Final]
at org.springframework.orm.jpa.EntityManagerFactoryUtils.closeEntityManager(EntityManagerFactoryUtils.java:346) ~[spring-orm-3.2.0.M1.jar:3.2.0.M1]
at org.springframework.orm.jpa.JpaTransactionManager.doCleanupAfterCompletion(JpaTransactionManager.java:595) [spring-orm-3.2.0.M1.jar:3.2.0.M1]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.cleanupAfterCompletion(AbstractPlatformTransactionManager.java:1008) [spring-tx-3.
2.0.M1.jar:3.2.0.M1]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:804) [spring-tx-3.2.0.M1.jar
:3.2.0.M1]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) [spring-tx-3.2.0.M1.jar:3.2.0.
M1]
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:394) [spring-tx-3.2.0.M1.j
ar:3.2.0.M1]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120) [spring-tx-3.2.0.M1.jar:3.2.0.M1]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.0.M1.jar:3.2.0.M1]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:155) [spring-tx-3.2.0.M1.ja
r:3.2.0.M1]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.0.M1.jar:3.2.0.M1]
at org.springframework.data.jpa.repository.support.LockModeRepositoryPostProcessor$LockModePopulatingMethodIntercceptor.invoke(LockModeRepositoryPostProcessor.j
ava:84) [spring-data-jpa-1.2.0.M1.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.2.0.M1.jar:3.2.0.M1]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90) [spring-aop-3.2.0.M1.jar:3.2.0.M1]