Message Title

I am also experiencing a similar issue. I had upgraded my application to version 4.3.1.Final and received a similar stack trace. When I downgraded to version 4.2.8.Final, the application works with no changes. These errors occur when changes on the application are to be saved to the database - reads appear to work fine.

Caused by: java.lang.reflect.UndeclaredThrowableException
	at com.sun.proxy.$Proxy64.hashCode(Unknown Source)
	at java.util.HashMap.get(HashMap.java:312)
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.release(JdbcCoordinatorImpl.java:399)
	at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.releaseStatements(AbstractBatchImpl.java:173)
	at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:76)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3124)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3587)
	at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:103)
	at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:453)
	at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:345)
	at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:350)
	at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56)
	at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1218)
	at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:421)
	at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
	at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177)
	at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:557)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:757)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:726)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:272)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:646)
	at com.ncogroup.ncoserver.business.service.NcoJobDetailsServiceImpl$$EnhancerByCGLIB$$58ef3575.saveNcoJobDetails(<generated>)
	at com.ncogroup.ncoserver.web.mvc.setup.InternalSettingsCtlr.cloneAJob(InternalSettingsCtlr.java:1810)
	... 66 more
Caused by: java.sql.SQLException: Statement closed.
	at org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport$StatementProxy.invoke(AbstractQueryReport.java:226)