--- a/hotspot/src/os/aix/vm/perfMemory_aix.cpp	Thu Nov 13 11:14:01 2014 +0100
+++ b/hotspot/src/os/aix/vm/perfMemory_aix.cpp	Fri Nov 14 09:47:09 2014 +0100
@@ -422,7 +422,7 @@
 // return the name of the user that owns the JVM indicated by the given vmid.
 //
 static char* get_user_name(int vmid, TRAPS) {
-  return get_user_name_slow(vmid, CHECK_NULL);
+  return get_user_name_slow(vmid, THREAD);
 }
 
 // return the file name of the backing store file for the named