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8190500: (ch) ReadableByteChannelImpl::read and WritableByteChannelImpl::write might not throw ClosedChannelException as specified

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Explicitly verify that the channel is open

Reviewed-by: alanb
This commit is contained in:
Brian Burkhalter 2017-11-03 10:18:27 -07:00
parent 3803dc1401
commit 87eb47a3c8
2 changed files with 47 additions and 2 deletions
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10
src/java.base/share/classes/java/nio/channels/Channels.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2017, 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
@ -368,6 +368,10 @@ public final class Channels {
@Override
public int read(ByteBuffer dst) throws IOException {
if (!isOpen()) {
throw new ClosedChannelException();
}
int len = dst.remaining();
int totalRead = 0;
int bytesRead = 0;
@ -442,6 +446,10 @@ public final class Channels {
@Override
public int write(ByteBuffer src) throws IOException {
if (!isOpen()) {
throw new ClosedChannelException();
}
int len = src.remaining();
int totalWritten = 0;
synchronized (writeLock) {