<BUG>public ChannelPipeline addFirst(ChannelHandlerInvoker invoker,ChannelHandler... handlers) {delegate.addFirst(invoker, handlers);return this;}@Override</BUG><CONTEXT>ChannelHandler... handlers) {delegate.addFirst(group, handlers);return this;}@Override<extra_id_0>public ChannelPipeline addLast(ChannelHandler... handlers) {</CONTEXT>
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