jar not working with fileset?

[T Master]

I have a target to jar up my classes.
I have a patternset in use with a fileset.  Yet an empty jar file is being
produced.

What am I doing wrong?


    <target name="jarProject" depends="init, compileProject">
        <jar jarfile="${dist.dir}/${app.name}.jar">
            <fileset dir="${basedir}">
                <patternset refid="appserver.build.classes"/>
            </fileset>
        </jar>
    </target>

T Master