Dear Team,

Getting NullPointerException in EnversPreCollectionRemoveEventListenerImpl of Hibernate Envers. Kindly do the

Caused by: java.lang.NullPointerException
at org.hibernate.envers.event.EnversPreCollectionRemoveEventListenerImpl.onPreRemoveCollection(EnversPreCollectionRemoveEventListenerImpl.java:50) ~[hibernate-envers-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.action.internal.CollectionRemoveAction.preRemove(CollectionRemoveAction.java:143) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.action.internal.CollectionRemoveAction.execute(CollectionRemoveAction.java:104) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:393) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:385) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:305) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:339) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.event.internal.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:62) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.internal.SessionImpl.autoFlushIfRequired(SessionImpl.java:1211) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1661) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]
at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:374) ~[hibernate-core-4.2.7.Final.jar!/:4.2.7.Final]