--- old/src/java.base/share/native/libjava/String.c	2015-10-30 14:03:54.213294899 -0700
+++ new/src/java.base/share/native/libjava/String.c	2015-10-30 14:03:53.968295825 -0700
@@ -31,3 +31,14 @@
 {
     return JVM_InternString(env, this);
 }
+
+JNIEXPORT jboolean JNICALL
+Java_java_lang_StringUTF16_isBigEndian(JNIEnv *env, jclass cls)
+{
+  unsigned int endianTest = 0xff000000;
+  if (((char*)(&endianTest))[0] != 0) {
+    return JNI_TRUE;
+  } else {
+    return JNI_FALSE;
+  }
+}