Often the faster an algorithm can be put into the market, the more advantage it has. Many algorithms have a shelf life and quicker time to market is key in taking advantage of that. With the community around Java and the options available, it can definitely be a competitive advantage, as opposed to C or C++ where the options may not be as broad for the use case. Sometimes, though, pure low latency can rule out other concerns. I think currently, the difference in performance between Java and C++ is so close that it's not a black and white decision based solely on speed. Improvements in GC techniques, JIT optimizations, and managed runtimes have made traditional Java weaknesses with respect to performance into some very compelling strengths that are not easy to ignore.
We never intended for a support contract to be required to keep JDK 7 up to date. TZUpdater was made unavailable on March 8 as part of the End of Public Updates for JDK 6, and as soon as we learned that this affected JDK 7 users we initiated the process of making it available for JDK 7 again.
I'm a Lisp variable -- bind me!