diff --git a/openjdkjvmti/transform.h b/openjdkjvmti/transform.h
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+++ b/openjdkjvmti/transform.h
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+/* Copyright (C) 2016 The Android Open Source Project
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This file implements interfaces from the file jvmti.h. This implementation
+ * is licensed under the same terms as the file jvmti.h.  The
+ * copyright and license information for the file jvmti.h follows.
+ *
+ * Copyright (c) 2003, 2011, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 ART_OPENJDKJVMTI_TRANSFORM_H_
+#define ART_OPENJDKJVMTI_TRANSFORM_H_
+
+#include <string>
+
+#include <jni.h>
+#include "jvmti.h"
+
+#include "art_jvmti.h"
+#include "ti_class_definition.h"
+
+namespace openjdkjvmti {
+
+class EventHandler;
+
+jvmtiError GetClassLocation(ArtJvmTiEnv* env, jclass klass, /*out*/std::string* location);
+
+class Transformer {
+ public:
+  static jvmtiError RetransformClassesDirect(
+      ArtJvmTiEnv* env,
+      EventHandler* event_handler,
+      art::Thread* self,
+      /*in-out*/std::vector<ArtClassDefinition>* definitions);
+
+  static jvmtiError RetransformClasses(ArtJvmTiEnv* env,
+                                       EventHandler* event_handler,
+                                       art::Runtime* runtime,
+                                       art::Thread* self,
+                                       jint class_count,
+                                       const jclass* classes,
+                                       /*out*/std::string* error_msg);
+};
+
+}  // namespace openjdkjvmti
+
+#endif  // ART_OPENJDKJVMTI_TRANSFORM_H_
+