DefaultStopExi exi = new DefaultStopExi("");
Document doc = XmlUtil.newDocument();
Channel channel = mock(Channel.class);
+ doReturn("mockChannel").when(channel).toString();
ChannelPipeline pipeline = mock(ChannelPipeline.class);
doReturn(pipeline).when(channel).pipeline();
ChannelHandler channelHandler = mock(ChannelHandler.class);