reduce threads to 500 as 1000 will exceed the default nproc size of 1024 on linux default installations

or you could also ulimit -u 4096, but then we'd need to document this better.


git-svn-id: https://svn.apache.org/repos/asf/openwebbeans/trunk@1512895 13f79535-47bb-0310-9956-ffa450edef68