This was expected but now it's effective, Java 9 no longer supports source/target level 1.5:
http://mail.openjdk.java.net/pipermail/jdk9-dev/2014-July/000972.html So if you update a package and see these settings please bump them to 1.6. It might be interesting to add a Lintian warning when a jar with the class format <= 49 is detected, that would mean the package was compiled with a target <= 1.5 and will probably fail to build with Java 9. Emmanuel Bourg -- To UNSUBSCRIBE, email to debian-java-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/53c5983d.1060...@apache.org