Oracle Portal. You will find all the stories and background you need. Basically Oracle is suing Google for the use of Java code in the Android OS. We reported on this a while back and little bits and pieces have slowly appeared over the past few months.
Gemalto. Gemalto is a digital security company that claims Google and several other phone companies infringed on a patent it holds.
InfoWorld. The reason is that Android apps are written in Java and they are run using Java code based on the Harmony project.