This is missing. Its email is unknown.

This is Kate. Its email is unknown.

This is Kate. Her email is kate@gmail.com.

This is John. His email is john@gmail.com.

This is Kate. Its email is unknown.

This is John. His email is john@gmail.com. He is endorsed by Kate.

Nicknames:

Kate

Little John

net.sf.j2s.hello.ExtendedUser

true

true

true

true

true

true

net.sf.j2s.hello.User

true

false

false

true

true

false