Update section of Admin GUI which uses pkg Java API is unable to process and
report available updates if packages use variants - this is currently the case
for Java EE 6 SDK distributions with bundled JDK. While it has been known that
Java API does not correctly handle variants in UC 2.3u2, the expectation was
that one of provided variant files will be picked up for installation or update
during the creation of PackagePlan. However, this is not the case and
IllegalArgumentException is being thrown instead.
Full stack trace has been posted in this forum thread: