HHH-12830 Improve error message when a method is called in a non active

transaction

hibernate-core/src/main/java/org/hibernate/context/internal/ThreadLocalSessionContext.java

@@ -342,7 +342,8 @@ public class ThreadLocalSessionContext extends AbstractCurrentSessionContext {
 						LOG.tracef( "Allowing invocation [%s] to proceed to real (non-transacted) session - deprecated methods", methodName );
 					}
 					else {
-						throw new HibernateException( methodName + " is not valid without active transaction" );
+						throw new HibernateException( "Calling method '" + methodName + "' is not valid without an active transaction (Current status: "
+								+ realSession.getTransaction().getStatus() + ")" );
 					}
 				}
 				LOG.tracef( "Allowing proxy invocation [%s] to proceed to real session", methodName );