--- old/test/gc/metaspace/ClassMetaspaceSizeInJmapHeap.java	2013-03-05 17:24:48.943015584 +0100
+++ new/test/gc/metaspace/ClassMetaspaceSizeInJmapHeap.java	2013-03-05 17:24:48.807015589 +0100
@@ -39,8 +39,9 @@
     public static void main(String[] args) throws Exception {
         String pid = Integer.toString(ProcessTools.getProcessId());
 
+        String arch = System.getProperty("sun.arch.data.model");
         ProcessBuilder pb = new ProcessBuilder();
-        pb.command(JDKToolFinder.getJDKTool("jmap"), "-heap",  pid);
+        pb.command(JDKToolFinder.getJDKTool("jmap"), "-J-d" + arch, "-heap", pid);
 
         File out = new File("ClassMetaspaceSizeInJmapHeap.stdout.txt");
         pb.redirectOutput(out);