Comment: Re:What happened to Java? (Score 4, Informative) 265
It's mostly a matter of incompetence in the implementation, indeed. The Java vulnerabilities I have followed have always included calling some obscure part of the Java class library which is implemented using native code (mostly for optimization reasons) that happened to be buggy in some way.
It should be said in this case, however, that the new Java 7 dynamic language support infrastructure, which is one of the things Oracle added since they took Java over. Many of the things Oracle has done to Java lately (and especially as additions in Java 7) have struck me as poorly designed features that just allowed Oracle to check of some feature-lists to make Java appear as "feature-complete" as dotnet.