8220441: [PPC64] Clobber memory effect missing for memory barriers in atomics Reviewed-by: simonis, goetz

8184315: Typo in java.net.JarURLConnection.getCertificates() method documentation Reviewed-by: dfuchs

8220341: Class redefinition fails with assert(!is_unloaded()) failed: unloaded method on the stack Summary: Skip unloaded methods in compile queue during marking. Reviewed-by: kvn, neliasso, eosterlund, coleenp