Bug#492322: fop is built with gcj, but ant.properties says java-6-sun (FTBFS in pbuilder)

[Sikon]

Package: fop
Version: 1:0.94.dfsg-2

The file debian/ant.properties has an incorrect JAVA_HOME. It points
to /usr/lib/jvm/java-6-sun, even though sun-java6-* packages are not
build-dependencies for fop. Therefore, fop fails to build in chroot
environments on the Javadoc stage.

Instead, fop should use gcj's javadoc.

The Ubuntu version 1:0.94.dfsg-2ubuntu1 contains a fix.