java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.neo4j.ogm.annotations.DefaultEntityAccessStrategy.getIdentityPropertyReader(DefaultEntityAccessStrategy.java:486)
at org.neo4j.ogm.context.MappingContext.purge(MappingContext.java:307)
at org.neo4j.ogm.context.MappingContext.clear(MappingContext.java:266)
at org.neo4j.ogm.context.MappingContext.reset(MappingContext.java:282)
at org.neo4j.ogm.session.transaction.DefaultTransactionManager.rollback(DefaultTransactionManager.java:82)
at org.neo4j.ogm.transaction.AbstractTransaction.rollback(AbstractTransaction.java:65)
at org.neo4j.ogm.drivers.embedded.transaction.EmbeddedTransaction.rollback(EmbeddedTransaction.java:60)

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