8033696: "assert(thread != NULL) failed: just checking" due to Thread::current() and JNI pthread interaction
Reviewed-by: dholmes, dsamersoff
Contributed-by: andreas.eriksson@oracle.com
8026334: hs_err improvement: Print elapsed time in a humanly readable format
Reviewed-by: coleenp, dsamersoff
Contributed-by: masato.yoshida@oracle.com