IJ000311 / "IJ000152: Trying to return an unknown connection" warnings after using Hibernate Session.connection() in JBoss EAP

Solution Verified - Updated -

Issue

  • Application code is using the Session.connection() API to work with the connection used by Hibernate during a transaction

  • At the end of some transactions, a WARN is written to the JBoss EAP server.log

    ... IJ000311: Throwable from unregister connection: java.lang.IllegalStateException: IJ000152: Trying to return an unknown connection: org.jboss.jca.adapters.jdbc.jdk8.WrappedConnectionJDK8...

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 7
  • Hibernate 5

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