--- old/src/java.base/unix/native/libnio/ch/nio_util.h	2018-03-28 12:27:47.274049043 +0200
+++ new/src/java.base/unix/native/libnio/ch/nio_util.h	2018-03-28 12:27:47.038049045 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2018, 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
@@ -62,4 +62,5 @@
 
 /* Defined in Net.c */
 
-jint handleSocketError(JNIEnv *env, jint errorValue);
+JNIEXPORT jint JNICALL
+handleSocketError(JNIEnv *env, jint errorValue);