diff --git a/media/libmediaplayer2/JavaVMHelper.cpp b/media/libmediaplayer2/JavaVMHelper.cpp
new file mode 100644
index 0000000..90aaa7f
--- /dev/null
+++ b/media/libmediaplayer2/JavaVMHelper.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#define LOG_TAG "JavaVMHelper"
+
+#include "mediaplayer2/JavaVMHelper.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+
+#include <stdlib.h>
+
+namespace android {
+
+// static
+std::atomic<JavaVM *> JavaVMHelper::sJavaVM(NULL);
+
+// static
+JNIEnv *JavaVMHelper::getJNIEnv() {
+    JNIEnv *env;
+    JavaVM *vm = sJavaVM.load();
+    CHECK(vm != NULL);
+
+    if (vm->GetEnv((void **)&env, JNI_VERSION_1_4) != JNI_OK) {
+        return NULL;
+    }
+
+    return env;
+}
+
+// static
+void JavaVMHelper::setJavaVM(JavaVM *vm) {
+    sJavaVM.store(vm);
+}
+
+}  // namespace android