While Java is not in jeopardy of dieing any time soon, It has most certainly been mugged in the back ally by Oracle and is banged up pretty bad. While Java the languadge is a bit verbose at times I never felt that it was in real danger. The library wealth if nothing else kept people fixed to it. But with Oracle's stewardship, it has given people the reason to ignore all the practical reason to stick with Java and move on to other pastures. The problem is none of the cool kids are using Java anymore and that is a real problem, that means new problems sets and new solutions will be accomplished in other languadges it also means all those libraries and the developers who graciously write them and distribute them for free are going to start looking to work in other languages, these political problems do present a serious threat to Java's crown and it seems that Oracle is oblivious to the fact or sees value in monetizing it to the pulp while it can squeeze Java technology adopters.
Plus many of the new Graph Databases are written in Java. Neo4j and OrientDB
Arguably, most corpses do mutate into other things. This is just an argument of semantics. Java as we knew it is going away. This is as close to "dead" as philosophical ideals get.