...is now the default Java runtime in unstable! I just uploaded
java-common/0.55 to unstable and it switched the default-jre/jdk to
openjdk-8 for all the architectures previously defaulting to openjdk-7.
I expect a few packages to FTBFS after this update (most notably
eclipse) but the main compatibility issues have already been fixed.
Enjoy :)
Emmanuel Bourg