Commits on Oct 9, 2023

1. Do not fail when compressing empty HttpContent …

   Motivation:
   
   HttpContentCompressor fails with an exception when trying to write an empty HttpContent:
   
   ```
   io.netty.handler.codec.EncoderException: MessageToMessageCodec$1 must produce at least one message.
   	at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:99)
   	at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116)
   	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879)
   	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863)
   	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968)
   	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856)
   	at io.netty.channel.ChannelDuplexHandler.write(ChannelDuplexHandler.java:115)
   ```
   
   Modification:
   
   If the compression has no output, write an empty dummy HttpContent. This is not an ideal solution, but this should not happen often anyway.
   
   Result:
   
   HttpContentCompressor does not fail anymore.

   

   yawkat committed Oct 9, 2023
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2. Update codec-http/src/test/java/io/netty/handler/codec/http/HttpConte… …

   …ntCompressorTest.java
   
   Co-authored-by: Norman Maurer <norman_maurer@apple.com>

   

   yawkat and normanmaurer committed Oct 9, 2023
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