javac exclude not working for directories

[dtown]

I can't seem to figure out what I am doing wrong. The following is my javac
task:

<javac srcdir="${root}"
          destdir="${classes}"
          debug="on"
          debuglevel="lines,source"
          source="1.5"
          includes="org/domain/dir1/, org/aemf/dir2/"
          excludes="org/domain/dir1/app2/, org/domain/dir1/app3/"
          classpath= "${compile.comm}; ${compile.db4.3}; ${compile.swing};
${compile.xml}"  >
   </javac>


I basically want to exclude everything within the dir1 & dir2
(subdirectories included), and exclude the directories dir1/app2 & dir2/app3
(and all of their subdirectories). The include works as expected, but the
directories are not excluded.

Any ideas?

thanks!