Michael, CR 6967684: httpserver using a non thread-safe SimpleDateFormat
Bug description says it all. I guess in reality this may have gone unseen for so long because, if two or more threads were servicing requests the dates they would be generating should be fairly similar, but worst case they could actually see partial of corrupt dates. This bug causes random httpserver tests to fail when run with assertions enabled.
The most reasonable solution is to use a thread-local instance of the formatter, rather than creating one per request.
Webrev: http://cr.openjdk.java.net/~chegar/6967684/webrev.00/webrev/ Thanks, -Chris.
