--- a/src/hotspot/share/asm/codeBuffer.cpp	Thu May 09 14:26:03 2019 +0200
+++ b/src/hotspot/share/asm/codeBuffer.cpp	Thu May 09 14:26:03 2019 +0200
@@ -24,6 +24,7 @@
 
 #include "precompiled.hpp"
 #include "asm/codeBuffer.hpp"
+#include "code/oopRecorder.inline.hpp"
 #include "compiler/disassembler.hpp"
 #include "oops/methodData.hpp"
 #include "oops/oop.inline.hpp"

--- a/src/hotspot/share/code/oopRecorder.cpp	Thu May 09 14:26:03 2019 +0200
+++ b/src/hotspot/share/code/oopRecorder.cpp	Thu May 09 14:26:03 2019 +0200
@@ -26,7 +26,7 @@
 #include "ci/ciEnv.hpp"
 #include "ci/ciInstance.hpp"
 #include "ci/ciMetadata.hpp"
-#include "code/oopRecorder.hpp"
+#include "code/oopRecorder.inline.hpp"
 #include "memory/allocation.inline.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/jniHandles.inline.hpp"

--- a/src/hotspot/share/code/oopRecorder.hpp	Thu May 09 14:26:03 2019 +0200
+++ b/src/hotspot/share/code/oopRecorder.hpp	Thu May 09 14:26:03 2019 +0200
@@ -77,9 +77,7 @@
   }
 
   // Helper function; returns false for NULL or Universe::non_oop_word().
-  bool is_real(T h) {
-    return h != NULL && h != (T)Universe::non_oop_word();
-  }
+  inline bool is_real(T h);
 
   // copy the generated table to nmethod
   void copy_values_to(nmethod* nm);
@@ -207,9 +205,7 @@
   int oop_count() {
     return _oops.count();
   }
-  bool is_real(jobject h) {
-    return _oops.is_real(h);
-  }
+  inline bool is_real(jobject h);
 
   int allocate_metadata_index(Metadata* oop) {
     return _metadata.allocate_index(oop);
@@ -226,9 +222,7 @@
   int metadata_count() {
     return _metadata.count();
   }
-  bool is_real(Metadata* h) {
-    return _metadata.is_real(h);
-  }
+  inline bool is_real(Metadata* h);
 
   bool is_unused() {
     return _oops.is_unused() && _metadata.is_unused();

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/code/oopRecorder.inline.hpp	Thu May 09 14:26:03 2019 +0200
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2019, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_CODE_OOPRECORDER_INLINE_HPP
+#define SHARE_CODE_OOPRECORDER_INLINE_HPP
+
+#include "code/oopRecorder.hpp"
+#include "memory/universe.hpp"
+
+template <class T>
+bool ValueRecorder<T>::is_real(T h) {
+  return h != NULL && h != (T)Universe::non_oop_word();
+}
+
+bool OopRecorder::is_real(jobject h) {
+  return _oops.is_real(h);
+}
+
+bool OopRecorder::is_real(Metadata* h) {
+  return _metadata.is_real(h);
+}
+
+#endif // SHARE_CODE_OOPRECORDER_INLINE_HPP