--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/oops/instanceMirrorKlass.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2011, 2017, 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 "classfile/javaClasses.hpp"
+#include "classfile/systemDictionary.hpp"
+#include "gc/shared/collectedHeap.inline.hpp"
+#include "gc/shared/specialized_oop_closures.hpp"
+#include "memory/iterator.inline.hpp"
+#include "memory/oopFactory.hpp"
+#include "oops/instanceKlass.hpp"
+#include "oops/instanceMirrorKlass.hpp"
+#include "oops/instanceOop.hpp"
+#include "oops/oop.inline.hpp"
+#include "oops/symbol.hpp"
+#include "runtime/handles.inline.hpp"
+#include "utilities/macros.hpp"
+
+int InstanceMirrorKlass::_offset_of_static_fields = 0;
+
+int InstanceMirrorKlass::instance_size(Klass* k) {
+  if (k != NULL && k->is_instance_klass()) {
+    return align_object_size(size_helper() + InstanceKlass::cast(k)->static_field_size());
+  }
+  return size_helper();
+}
+
+instanceOop InstanceMirrorKlass::allocate_instance(Klass* k, TRAPS) {
+  // Query before forming handle.
+  int size = instance_size(k);
+  assert(size > 0, "total object size must be positive: %d", size);
+
+  // Since mirrors can be variable sized because of the static fields, store
+  // the size in the mirror itself.
+  return (instanceOop)CollectedHeap::class_allocate(this, size, CHECK_NULL);
+}
+
+int InstanceMirrorKlass::oop_size(oop obj) const {
+  return java_lang_Class::oop_size(obj);
+}
+
+int InstanceMirrorKlass::compute_static_oop_field_count(oop obj) {
+  Klass* k = java_lang_Class::as_Klass(obj);
+  if (k != NULL && k->is_instance_klass()) {
+    return InstanceKlass::cast(k)->static_oop_field_count();
+  }
+  return 0;
+}