--- a/src/java.base/unix/native/libnio/ch/nio_util.h	Sat Mar 16 21:27:15 2019 +0900
+++ b/src/java.base/unix/native/libnio/ch/nio_util.h	Sat Mar 16 12:31:31 2019 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2019, 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
@@ -55,6 +55,7 @@
 /* Defined in IOUtil.c */
 
 jint fdval(JNIEnv *env, jobject fdo);
+void setfdval(JNIEnv *env, jobject fdo, jint value);
 
 jint convertReturnVal(JNIEnv *env, jint n, jboolean reading);
 jlong convertLongReturnVal(JNIEnv *env, jlong n, jboolean reading);