--- old/src/hotspot/share/include/jvm.h	2020-03-26 15:58:26.000000000 -0700
+++ new/src/hotspot/share/include/jvm.h	2020-03-26 15:58:25.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2020, 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
@@ -389,6 +389,22 @@
                           const char *source);
 
 /*
+ * Define a class with the specified lookup class.
+ *  lookup:  Lookup class
+ *  name:    the name of the class
+ *  loader:  defining class loader
+ *  buf:     class bytes
+ *  len:     length of class bytes
+ *  pd:      protection domain
+ *  init:    initialize the class
+ *  flags:   properties of the class
+ *  classData: private static pre-initialized field; may be null
+ */
+JNIEXPORT jclass JNICALL
+JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
+                      jsize len, jobject pd, jboolean init, int flags, jobject classData);
+
+/*
  * Module support funcions
  */
 
@@ -474,6 +490,9 @@
 JNIEXPORT jboolean JNICALL
 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 
+JNIEXPORT jboolean JNICALL
+JVM_IsHiddenClass(JNIEnv *env, jclass cls);
+
 JNIEXPORT jint JNICALL
 JVM_GetClassModifiers(JNIEnv *env, jclass cls);