Transaction marked as rollback only: How do I find the cause - madhusudana30/AlternativeJPAForWebSphere GitHub Wiki

https://stackoverflow.com/questions/19302196/transaction-marked-as-rollback-only-how-do-i-find-the-cause

disable the transactionmanager in your Bean.xml

<tx:annotation-driven proxy-target-class="true" transaction-manager="transactionManager"/> comment out these lines, and you'll see the exception causing the rollback ;)