Java and Oracle - a commons-logging-1.1.jar dependency issue

Okay, now that Sun has been absorbed by Oracle let's see who knows about both,

Because, I can make Oracle tables, view, trigger, sequences and synonyms with the rest of the Oracle community ,code threads and objects in Java, and I know you can run Java in a Oracle database trigger, but I'm not certified in Oracle enough to know how to solve this problem.

I've been an to run basic example of Java in Oracle trigger, but I'm having a dependency issue with some the basic commons-logging-1.1.jar file while loading it into Oracle via the following command.

$ loadjava -f -v -r -user "<DB_User>/<DB_PASSWORD>" Constant.class

Ought not Oracle have the basics of Java already? Is this a database configuration issue or am I just missing another jar file here?

Help - this ought to be simple