8058818: Allocation of more then 1G of memory using Unsafe.allocateMemory is still causing a fatal error on 32bit platforms Summary: The assert was firing for NMT_Off and minimal too even though the size isn't used. Reviewed-by: gtriantafill, dholmes

8054194: jstack crash: assert(handle != NULL) failed: JNI handle should not be null Summary: Add better error check to sa to avoid secondary crash Reviewed-by: sla, jbachorik, sspitsyn