8015692: java.net.BindException is thrown on Windows XP when HTTP server is started and stopped in the loop. Summary: join the dispatcher thread in the ServerImpl.stop method to ensure Dispatcher is finished prior to exiting stop(). Reviewed-by: chegar

./bootstrap/bin/javac
./bootstrap/bin/javadoc
./bootstrap/bin/javah
./bootstrap/lib/doclets.jar
./bootstrap/lib/javac.jar
./bootstrap/lib/javadoc.jar
./bootstrap/lib/javah.jar
./lib/classes.jar
./lib/src.zip