I am new to this list, but I downloaded the 1.2.7 version, and with the help of the readme, set up my build.properties.
My first time of using ant as well, but after looking, After trying the build several times, it appears that the basedir on line 203 was never specified. I modified mine to java.source.dir, and that allowed the build to proceed. One other question in the target for jaxpCheck, I think the classpathref="compile.classpath" needs to be added so the class can be found. If these have already been found/addressed I failed to find them in the archive, or the bug database. Thanks Rich Gibbs