Exception in thread “main” org.neo4j.graphdb.TransactionFailureException: Transaction was marked as successful, but unable to commit transaction so rolled back. at org.neo4j.kernel.impl.coreapi.TopLevelTransaction.close(TopLevelTransaction.java:102) at schedule.entry.main(entry.java:48) Caused by: org.neo4j.kernel.api.exceptions.TransactionFailureException: Transaction rolled back even if marked as successful at org.neo4j.kernel.impl.api.KernelTransactionImplementation.failOnNonExplicitRollbackIfNeeded(KernelTransactionImplementation.java:524) at org.neo4j.kernel.impl.api.KernelTransactionImplementation.closeTransaction(KernelTransactionImplementation.java:466) at org.neo4j.kernel.api.KernelTransaction.close(KernelTransaction.java:138) at org.neo4j.kernel.impl.coreapi.TopLevelTransaction.close(TopLevelTransaction.java:80)