I think its a technicality.
I can't imagine its possible to trademark an acronym (
J2EE is trademarked also), i guess this is so Sun can control the people who write 'jdbc(tm) drivers'.
Everybody knows jdbc is a ripoff of ODBC.
So I guess if we put on our CV 'I am a J2EE developer' we are breaching Sun's trademark...
hey.. even 'JVM (tm)' is trademarked!!!