--- a/src/java.base/share/classes/java/io/FilterOutputStream.java Wed Jul 17 14:24:24 2019 -0700
+++ b/src/java.base/share/classes/java/io/FilterOutputStream.java Wed Jul 17 14:24:37 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1994, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1994, 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
@@ -67,6 +67,10 @@
* created without an underlying stream.
*/
public FilterOutputStream(OutputStream out) {
+ if (out == null) {
+ throw new NullPointerException();
+ }
+
this.out = out;
}