5112cec5fa
Related: #2983 Motivation: It is a well known idiom to write an empty buffer and add a listener to its future to close a channel when the last byte has been written out: ChannelFuture f = channel.writeAndFlush(Unpooled.EMPTY_BUFFER); f.addListener(ChannelFutureListener.CLOSE); When HttpObjectEncoder is in the pipeline, this still works, but it silently raises an IllegalStateException, because HttpObjectEncoder does not allow writing a ByteBuf when it is expecting an HttpMessage. Modifications: - Handle an empty ByteBuf specially in HttpObjectEncoder, so that writing an empty buffer does not fail even if the pipeline contains an HttpObjectEncoder - Add a test Result: An exception is not triggered anymore by HttpObjectEncoder, when a user attempts to write an empty buffer. |
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