Namespace Javax.Transaction Classes InvalidTransactionException https://docs.oracle.com/javase/8/docs/api/javax/transaction/InvalidTransactionException.html TransactionRequiredException https://docs.oracle.com/javase/8/docs/api/javax/transaction/TransactionRequiredException.html TransactionRolledbackException https://docs.oracle.com/javase/8/docs/api/javax/transaction/TransactionRolledbackException.html