JOB keys are created by JOB key maps and are immutable objects. They are returned by method JobKeyMap.put(Object) on a key map instance. JOB keys are dependent on JOB key maps and keep a reference to these. The owning key map of a JOB key is returned by method

    public JobKeyMap getMap()

You can retrieve a JOB key's value calling method

    public Object get()

This method delegates to the owning key map. It is intended for navigation.