Explicitly set java version
Explicitly set java version

If we don't set the java version the version
which is localy set is used, and that can default to really old versions.
We need at least 1.5 (annotations). This patch sets it to 1.7 since 1.6 is being deprecated.

jhaber/commons,comoyo/commons,jhaber/commons,jhaber/commons,trask/commons,comoyo/commons,trask/commons,comoyo/commons,trask/commons