Add a few utility classes to test/testlibrary to support multi process testing in jtreg tests. Added a test case for one of the utility classes. Also reviewed by Vitaly Davidovich Reviewed-by: brutisso, dholmes, vlivanov, nloodin, mgerdin
README: This file should be located at the top of the hotspot Mercurial repository. See http://openjdk.java.net/ for more information about the OpenJDK. See ../README-builds.html for complete details on build machine requirements. Simple Build Instructions: cd make && gnumake The files that will be imported into the jdk build will be in the "build" directory.