I did a fresh install of Xubuntu, installed icedtea-plugin (+ dependencies) and then checked the Java version:

Code:
$ java -version
java version "1.7.0_09"
OpenJDK Runtime Environment (IcedTea7 2.3.3) (7u9-2.3.3-0ubuntu1~12.10.1)
OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode)
Am I using open source java or Oracle (considering v1.7.0_09)? It's rather confusing.