EnableSerializationFocusListener usage?

[Jim Crowell]

I have rewritten my Focus Management scheme using the Focus System of Java
1.4.2.

My app is Form Centric and contains a custom class for each field of a form.
I manage the Focus Gained / Focus Lost processing of each field class to
satisfy some pre / post processing requirements.

During the debug phase I noticed that each 'field' class has the following
Focus Listener:

EnableSerializationFocusListener


To the best of my knowledge I am no using the Serialization interface
anywhere in my code.

I am unable to find anything on the Net that describes this Listener and how
it is used.

Any ideas as to what it is and is it necessary?

Regards,
Jim...