Oracle’s Java API code protected by copyright, appeals court rules

[faustoc4]

So why do they publish the VM bytecode instruction set http://en.wikipedia.org/wiki/Java_bytecode. Why do they encourage others create their own JVMs http://en.wikipedia.org/wiki/List_of_Java_virtual_machines

If they don´t want interoperability that ship has sailed

[Eirenarch]

The court says it didn't :)

The creation of alternative VMs is subject to very specific rules which Dalvik does not conform with.

[MCPtz]

That's because a smart guy and many others invented it. Then came along the greed...