--- a/hotspot/src/share/vm/code/debugInfo.cpp	Thu Jun 18 11:09:29 2015 -0700
+++ b/hotspot/src/share/vm/code/debugInfo.cpp	Thu Jun 11 10:50:27 2015 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -26,6 +26,7 @@
 #include "code/debugInfo.hpp"
 #include "code/debugInfoRec.hpp"
 #include "code/nmethod.hpp"
+#include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 
 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
@@ -47,6 +48,12 @@
   write_int(recorder()->oop_recorder()->find_index(h));
 }
 
+oop DebugInfoReadStream::read_oop() {
+  oop o = code()->oop_at(read_int());
+  assert(o->is_oop_or_null(), "oop only");
+  return o;
+}
+
 ScopeValue* DebugInfoReadStream::read_object_value() {
   int id = read_int();
 #ifdef ASSERT

--- a/hotspot/src/share/vm/code/debugInfo.hpp	Thu Jun 18 11:09:29 2015 -0700
+++ b/hotspot/src/share/vm/code/debugInfo.hpp	Thu Jun 11 10:50:27 2015 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -266,11 +266,7 @@
 
   } ;
 
-  oop read_oop() {
-    oop o = code()->oop_at(read_int());
-    assert(o == NULL || o->is_oop(), "oop only");
-    return o;
-  }
+  oop read_oop();
   Method* read_method() {
     Method* o = (Method*)(code()->metadata_at(read_int()));
     // is_metadata() is a faster check than is_metaspace_object()