In Build.xml there is a "buildworld" target which performs a bunch of targets and then "jars". There is no targe
<!-- Build insane product jars -->
<antcall target="clobber"/>
<antcall target="insane"/>
<antcall target="all"/>
<antcall target="jars"/>
<!-- Build sane product jars -->
<antcall target="clobber"/>
<antcall target="sane"/>
<antcall target="all"/>
<antcall target="jars"/>
<!-- Build everything else -->
<antcall target="javadoc"/>