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  1. ,

    Invalid http request, probably hacking with manually crafted requests.

java.lang.IllegalArgumentException: empty text	at org.jboss.netty.handler.codec.http.HttpVersion.(HttpVersion.java:97)	at org.jboss.netty.handler.codec.http.HttpVersion.valueOf(HttpVersion.java:62)	at org.jboss.netty.handler.codec.http.HttpRequestDecoder.createMessage(HttpRequestDecoder.java:75)	at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:189)	at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:101)	at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500)