hibernate - what does mean "SQL Error: 30000, SQLState: XSAI3"? -

I am using javadb / derbydb 10.5.3.0 with the Hibernate 3.5-final I at the end of the EM Initiation Error:

  4427 [swingwalker-pool-1-thread-1] warning org.hibernate.util.JDBCExceptionReporter - SQL Error: 30000, SQLState: XSAI3 4427 [SwingWorker-Pool-1 -DHA-1] error org.hibernate.util.JDBCExceptionReporter - feature is not implemented  

SQL error 30000 appears not documented

Feature is not implemented often Skyuel is used for the optional features which does not yet support derby. Can you identify with your logs as a result of this error? If tracking off the objectionable statement is not easy, try turning on the Derby Statement-level logging (-Db.b. language.logstatement text = true, I think) and then look for more information in the derby.log file The cause of the SQL statement is the error.

If you can post the exact SQL statement that encounters this error, then we may offer more suggestions.