Camel-Netty ReadTimeout event not trigerred

ReadTimeout event is not triggered properly after adding custom
encoder/decoder to endpoint.

I am using DelimiterBasedFrameDecoder & StringEncoder as custom codecs.

My Route Confuiguration is as follows

<route id="route1"> <from uri="wmq:queue:queue1?disableReplyTo=true" />
<process ref="byteResponseMessage" /> <to
uri="bean:messageLogger?method=log" /> <to
uri="netty:tcp://127.0.0.21:2626?decoders=#stxEtxDecoder,#byteToString&e ncoders=#stxEtxEncoder&sync=true&requestTimeout=5000"
/> <to uri="bean:messageLogger?method=fromlog" /> <process ref="validate"/>
</route>