7145358: SA throws ClassCastException for partially loaded ConstantPool Summary: In printValueOn() in ConstantPool.java check if the poolHolder is a valid Klass and only then print it. Reviewed-by: sla, sspitsyn Contributed-by: Krystal Mok <sajia@taobao.com>

7132070: Use a mach_port_t as the OSThread thread_id rather than pthread_t on BSD/OSX Summary: Change OSThread to use mach thread_t Reviewed-by: phh, dcubed