> I am using firebirdsql-full.jar in my application class-path,

Strange... You should not get ClassNotFoundException. Can you post
your classpath here or me privately?

> by the
> way could I use firebirdsql-full.jar unpacked to my application?
>
> I mean can I use the class files extracted from the
> firebirdsql-full.jar into my application package?

From my point of view - yes.

> How about this package: EDU.oswego, where is this used?

As far as I know - yes.

>
> > What would this be?
>
> When you use firebirdsql-pool.jar you also need mini-concurrent.jar.
> Or you use firebirdsql-full.jar

firebirdsql-full.jar contains everything, including
mini-concurrent.jar and mini-j2ee.jar.

Roman