Comment 3 for bug 568707

It looks like the debian/rules has this (from the diff.gz):

+debian/control: debian/control.in debian/rules
+ @cp -p debian/control debian/control.old
+ sed -e 's/@JRE@/$(p_jre)/g' \
+ -e 's/@JDK@/$(p_jdk)/g' \
+ -e 's/@vendor@/$(Vendor)/g' \
+ -e 's/@basename@/$(basename)/g' \
+ -e 's,@basedir@,$(basedir),g' \
+ -e 's/@srcname@/$(srcname)/g' \
+ -e 's/@arch@/$(DEB_HOST_ARCH)/g' \
+ -e 's/@sarch@/$(arch)/g' \
+ -e 's/@RELEASE@/$(relstring)/g' \
+ -e 's/@archdir@/$(archdir)/g' \
+ -e 's/@browsers@/$(browsers)/g' \
+ -e 's,@java_launcher@,$(java_launcher),g' \
+ -e 's/@cjk_fonts@/$(cjk_fonts)/g' \
+ -e 's,@pkg_version@,$(if $(filter $(distrelease),etch dapper edgy feisty gutsy),$${Source-Version},$${source:Version}),g' \
+ debian/control.in > debian/control

But I think I don't see a sed command to replace "@java_launcher@" in file debian/JB-java.desktop.in