dubbo-remoting/dubbo-remoting-netty/src/main/java/org/apache/dubbo/remoting/transport/netty/NettyBackedChannelBuffer.java [322:382]:
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    @Override
    public int writableBytes() {
        return buffer.writableBytes();
    }

    @Override
    public void writeByte(int value) {
        buffer.writeByte(value);
    }

    @Override
    public void writeBytes(byte[] src) {
        buffer.writeBytes(src);
    }

    @Override
    public void writeBytes(byte[] src, int index, int length) {
        buffer.writeBytes(src, index, length);
    }

    @Override
    public void writeBytes(ByteBuffer src) {
        buffer.writeBytes(src);
    }

    @Override
    public void writeBytes(ChannelBuffer src) {
        // careful
        writeBytes(src, src.readableBytes());
    }

    @Override
    public void writeBytes(ChannelBuffer src, int length) {
        // careful
        if (length > src.readableBytes()) {
            throw new IndexOutOfBoundsException();
        }
        writeBytes(src, src.readerIndex(), length);
        src.readerIndex(src.readerIndex() + length);
    }

    @Override
    public void writeBytes(ChannelBuffer src, int srcIndex, int length) {
        // careful
        byte[] data = new byte[length];
        src.getBytes(srcIndex, data, 0, length);
        writeBytes(data, 0, length);
    }

    @Override
    public int writeBytes(InputStream src, int length) throws IOException {
        return buffer.writeBytes(src, length);
    }

    @Override
    public int writerIndex() {
        return buffer.writerIndex();
    }

    @Override
    public void writerIndex(int writerIndex) {
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dubbo-remoting/dubbo-remoting-netty4/src/main/java/org/apache/dubbo/remoting/transport/netty4/NettyBackedChannelBuffer.java [322:382]:
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    @Override
    public int writableBytes() {
        return buffer.writableBytes();
    }

    @Override
    public void writeByte(int value) {
        buffer.writeByte(value);
    }

    @Override
    public void writeBytes(byte[] src) {
        buffer.writeBytes(src);
    }

    @Override
    public void writeBytes(byte[] src, int index, int length) {
        buffer.writeBytes(src, index, length);
    }

    @Override
    public void writeBytes(ByteBuffer src) {
        buffer.writeBytes(src);
    }

    @Override
    public void writeBytes(ChannelBuffer src) {
        // careful
        writeBytes(src, src.readableBytes());
    }

    @Override
    public void writeBytes(ChannelBuffer src, int length) {
        // careful
        if (length > src.readableBytes()) {
            throw new IndexOutOfBoundsException();
        }
        writeBytes(src, src.readerIndex(), length);
        src.readerIndex(src.readerIndex() + length);
    }

    @Override
    public void writeBytes(ChannelBuffer src, int srcIndex, int length) {
        // careful
        byte[] data = new byte[length];
        src.getBytes(srcIndex, data, 0, length);
        writeBytes(data, 0, length);
    }

    @Override
    public int writeBytes(InputStream src, int length) throws IOException {
        return buffer.writeBytes(src, length);
    }

    @Override
    public int writerIndex() {
        return buffer.writerIndex();
    }

    @Override
    public void writerIndex(int writerIndex) {
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