diff -r f4edb0d9f109 -r 21d113ecbf6a hotspot/agent/src/share/classes/sun/jvm/hotspot/HSDB.java
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/HSDB.java	Fri Apr 11 09:56:35 2008 -0400
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/HSDB.java	Sun Apr 13 17:43:42 2008 -0400
@@ -1011,8 +1011,21 @@
                         Assert.that(addr.andWithMask(VM.getVM().getAddressSize() - 1) == null,
                                     "Address " + addr + "should have been aligned");
                       }
+                      OopHandle handle = addr.getOopHandleAt(0);
+                      addAnnotation(addr, handle);
+                    }
+
+                    public void visitCompOopAddress(Address addr) {
+                      if (Assert.ASSERTS_ENABLED) {
+                        Assert.that(addr.andWithMask(VM.getVM().getAddressSize() - 1) == null,
+                                    "Address " + addr + "should have been aligned");
+                      }
+                      OopHandle handle = addr.getCompOopHandleAt(0);
+                      addAnnotation(addr, handle);
+                    }
+
+                    public void addAnnotation(Address addr, OopHandle handle) {
                       // Check contents
-                      OopHandle handle = addr.getOopHandleAt(0);
                       String anno = "null oop";
                       if (handle != null) {
                         // Find location