javax.persistence.TransactionRequiredException: Executing an update/delete query in Hibernate

Issue

• Executing an "update" query outside of a transaction using the code below was possible in Hibernate 5.1:

  entityManager.createNativeQuery("delete from Employee").executeUpdate();
  

• After moving from JBoss EAP 7.1 / Hibernate 5.1 to JBoss EAP 7.2 / Hibernate 5.3, encountering the failure below:

  ... javax.persistence.TransactionRequiredException: Executing an update/delete query
      at org.hibernate.query.internal.AbstractProducedQuery.executeUpdate(AbstractProducedQuery.java:1586)
      ...