--- a/src/java.base/share/classes/java/nio/channels/ReadableByteChannel.java Fri Nov 22 17:20:43 2019 +0100
+++ b/src/java.base/share/classes/java/nio/channels/ReadableByteChannel.java Fri Nov 22 09:00:16 2019 -0800
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -84,6 +84,9 @@
* @return The number of bytes read, possibly zero, or {@code -1} if the
* channel has reached end-of-stream
*
+ * @throws IllegalArgumentException
+ * If the buffer is read-only
+ *
* @throws NonReadableChannelException
* If this channel was not opened for reading
*