Expected:

1. Define an enum with explicit integer constants.
   ie. enum Stage { Entered(1); int value; public Stage(int value) { this.value = value }

   ... }

2. Add an {enum}Convertor java class decoratored with @Convertor for the enum and autoApply=true.
3. Use the enum as part of an @IdClass for a composite key.
4. I'd expect the stage column to store the value 1 in the database for Stage.Entered.

Actual Result:

1. The first ordinal enum value is given value 0 because it is the first enum constant.

Other Observations:

1. This works fine if it is just a regular old column and not part of a compose key.