> AbstractConnection AbstractStatment and .....
> [javac]
> \client-java.cvs\src\main\org\firebirdsql\jdbc\FBResultSet.java:138:
> setConnection(org.firebirdsql.jdbc.FBConnection) in
> org.firebirdsql.jdbc.FBField cannot be applied to
> (org.firebirdsql.jdbc.AbstractConnection)
> [javac] fields[i].setConnection(c);
> [javac] ^

You have to make clean check-out or at least delete output/ directory.
FBField is now located in org.firebirdsql.jdbc.field.* package. Since
you have it in old package, something went wrong.

Roman