As announcement on debian-devel-announce, I just uploaded java-common version 0.49. This version changes the default version of OpenJDK to version 7.
That means that packages depending on default-jdk/default-jre will be now built with OpenJDK 7 (instead of the 6) and also that the java/javac commands will be providing Java 7.
I also used the opportunity of this upload to update the Java policy.