--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/oops/compiledICHolder.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 1998, 2016, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "oops/compiledICHolder.hpp"
+#include "oops/klass.hpp"
+#include "oops/method.hpp"
+#include "runtime/atomic.hpp"
+
+volatile int CompiledICHolder::_live_count;
+volatile int CompiledICHolder::_live_not_claimed_count;
+
+
+CompiledICHolder::CompiledICHolder(Method* method, Klass* klass)
+  : _holder_method(method), _holder_klass(klass) {
+#ifdef ASSERT
+  Atomic::inc(&_live_count);
+  Atomic::inc(&_live_not_claimed_count);
+#endif // ASSERT
+}
+
+#ifdef ASSERT
+CompiledICHolder::~CompiledICHolder() {
+  assert(_live_count > 0, "underflow");
+  Atomic::dec(&_live_count);
+}
+#endif // ASSERT
+
+// Printing
+
+void CompiledICHolder::print_on(outputStream* st) const {
+  st->print("%s", internal_name());
+  st->print(" - method: "); holder_method()->print_value_on(st); st->cr();
+  st->print(" - klass:  "); holder_klass()->print_value_on(st); st->cr();
+}
+
+void CompiledICHolder::print_value_on(outputStream* st) const {
+  st->print("%s", internal_name());
+}
+
+
+// Verification
+
+void CompiledICHolder::verify_on(outputStream* st) {
+  guarantee(holder_method()->is_method(), "should be method");
+  guarantee(holder_klass()->is_klass(),   "should be klass");
+}
+
+#ifdef ASSERT
+
+void CompiledICHolder::claim() {
+  Atomic::dec(&_live_not_claimed_count);
+}
+
+#endif // ASSERT