diff --git a/src/dalvik_system_VMStack.cc b/src/dalvik_system_VMStack.cc
new file mode 100644
index 0000000..2a3f18b
--- /dev/null
+++ b/src/dalvik_system_VMStack.cc
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "jni_internal.h"
+#include "object.h"
+
+#include "JniConstants.h" // Last to avoid problems with LOG redefinition.
+
+namespace art {
+
+namespace {
+
+jint VMStack_fillStackTraceElements(JNIEnv* env, jclass, jobject targetThread, jobjectArray javaSteArray) {
+  UNIMPLEMENTED(FATAL);
+  return 0;
+}
+
+jobject VMStack_getCallingClassLoader(JNIEnv* env, jclass) {
+  UNIMPLEMENTED(WARNING);
+  return NULL;
+}
+
+jobjectArray VMStack_getClasses(JNIEnv* env, jclass, jint maxDepth) {
+  UNIMPLEMENTED(FATAL);
+  return NULL;
+}
+
+jclass VMStack_getStackClass2(JNIEnv* env, jclass) {
+  UNIMPLEMENTED(FATAL);
+  return NULL;
+}
+
+jobjectArray VMStack_getThreadStackTrace(JNIEnv* env, jclass, jobject targetThread) {
+  UNIMPLEMENTED(FATAL);
+  return NULL;
+}
+
+static JNINativeMethod gMethods[] = {
+  NATIVE_METHOD(VMStack, fillStackTraceElements, "(Ljava/lang/Thread;[Ljava/lang/StackTraceElement;)I"),
+  NATIVE_METHOD(VMStack, getCallingClassLoader, "()Ljava/lang/ClassLoader;"),
+  NATIVE_METHOD(VMStack, getClasses, "(I)[Ljava/lang/Class;"),
+  NATIVE_METHOD(VMStack, getStackClass2, "()Ljava/lang/Class;"),
+  NATIVE_METHOD(VMStack, getThreadStackTrace, "(Ljava/lang/Thread;)[Ljava/lang/StackTraceElement;"),
+};
+
+}  // namespace
+
+void register_dalvik_system_VMStack(JNIEnv* env) {
+  jniRegisterNativeMethods(env, "dalvik/system/VMStack", gMethods, NELEM(gMethods));
+}
+
+}  // namespace art