Another test:
$ dpkg -s xulrunner-1.9 | grep Conflicts Conflicts: j2re1.4 (<< 1:~)
Same results, Archive package (j2se1.4) won't install, built package installs.
Another test:
$ dpkg -s xulrunner-1.9 | grep Conflicts
Conflicts: j2re1.4 (<< 1:~)
Same results, Archive package (j2se1.4) won't install, built package installs.