# HG changeset patch # User kvn # Date 1212613428 25200 # Node ID 7efb18e28f6cbed9bb7b57c367c6cb8e96b7c2a9 # Parent f7b4f99c019933ce1d1cd2ff3fb5e1c5ceee0e4c 6710654: SAJDI failures with Compressed Oops Summary: Use correct offset for the java.lang.Class _klass field in SA. Reviewed-by: jrose, never diff -r f7b4f99c0199 -r 7efb18e28f6c hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/OopUtilities.java --- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/OopUtilities.java Tue Jun 03 13:14:44 2008 -0700 +++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/oops/OopUtilities.java Wed Jun 04 14:03:48 2008 -0700 @@ -274,10 +274,10 @@ // hc_klass is a HotSpot magic field and hence we can't // find it from InstanceKlass for java.lang.Class. TypeDataBase db = VM.getVM().getTypeDataBase(); - int hcKlassOffset = (int) Oop.getHeaderSize(); + int hcKlassOffset = (int) Instance.getHeaderSize(); try { hcKlassOffset += (db.lookupIntConstant("java_lang_Class::hc_klass_offset").intValue() * - db.getAddressSize()); + VM.getVM().getHeapOopSize()); } catch (RuntimeException re) { // ignore, currently java_lang_Class::hc_klass_offset is zero }