Google brings Design by Contract to Java

[Motso]

Google is developing a set of extensions for Java that should aid in better securing Java programs against buffer overflow attacks. Google has announced that it open sourced a project that its engineers were working on to add a new functionality into Java called Contracts, or Design-By-Contract. 'Contracts exist to check for programmer error, not for user error or environment failures. Any difference between execution with and without runtime contract checking (apart from performance) is by definition a bug. Contracts must never have side effects.

[Motso]

I did not realize buffer overflows were a problem for apps written in Java. Java has built-in "generic" dynamic data structures which should be suitable for 99% of the software any of us write. Why would we ever be manually managing memory in Java? Doing so should be "considered harmful" to a far greater degree than goto statements.