7182040: volano29 limited by os resource on Linux - need better diagnostic message
Summary: Changed message to "unable to create native thread: possibly out of memory or process/resource limits reached"
Reviewed-by: dholmes, sla
8033792: AltHashing used jint for imprecise bit shifting
Summary: AltHashing used jint the way of juint in bit shifting which could lead loss of precision. Fix by change _seed defined as juint.
Reviewed-by: coleenp, ccheung
Contributed-by: yumin.qi@oracle.com