8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
Summary: Allocate medium chunks for class metaspace when class loader has lots of classes
Reviewed-by: mgerdin, jmasa
8009204: [dtrace] signatures returned by Java 7 jstack() are corrupted on Solaris
Summary: The fix is basically a backport of JDK-7019165 (pstack issue) to jhelper.d.
Reviewed-by: coleenp, sspitsyn
Contributed-by: tomas.hurka@oracle.com