With the release of Camel 2.18 I thought now was a good time to propose this. I think for the ActiveMQ 5.15 release we should bump the required Java version to Java 8 as this will allow us to use Camel 2.18 so we can finally fix our OSGi module and drop the deprecated Spring DM entirely. This release probably won't go out until sometime next year and by that time JDK 9 should be either released or close to being released and JDK 7 will have had its last public update nearly 2 years ago.
Also, I figure we might as well do the same thing for Artemis. Any objections or reasons to stick with Java 7?