diff --git a/runtime/native/dalvik_system_DexFile.cc b/runtime/native/dalvik_system_DexFile.cc
index 0abe39d..38d8efc 100644
--- a/runtime/native/dalvik_system_DexFile.cc
+++ b/runtime/native/dalvik_system_DexFile.cc
@@ -481,6 +481,16 @@
   return env->NewStringUTF(new_filter_str.c_str());
 }
 
+static jboolean DexFile_isBackedByOatFile(JNIEnv* env, jclass, jobject cookie) {
+  const OatFile* oat_file = nullptr;
+  std::vector<const DexFile*> dex_files;
+  if (!ConvertJavaArrayToDexFiles(env, cookie, /*out */ dex_files, /* out */ oat_file)) {
+    DCHECK(env->ExceptionCheck());
+    return false;
+  }
+  return oat_file != nullptr;
+}
+
 static JNINativeMethod gMethods[] = {
   NATIVE_METHOD(DexFile, closeDexFile, "(Ljava/lang/Object;)Z"),
   NATIVE_METHOD(DexFile,
@@ -506,6 +516,7 @@
   NATIVE_METHOD(DexFile,
                 getNonProfileGuidedCompilerFilter,
                 "(Ljava/lang/String;)Ljava/lang/String;"),
+  NATIVE_METHOD(DexFile, isBackedByOatFile, "(Ljava/lang/Object;)Z"),
 };
 
 void register_dalvik_system_DexFile(JNIEnv* env) {