Response res=req.getResponse();
if( log.isDebugEnabled() )
log.debug("doRead " + chunk.getBytes() + " " + chunk.getOffset() + " " + chunk.getLength());
MsgContext ep=(MsgContext)res.getNote( epNote );
JkInputStream jkIS=(JkInputStream)ep.getNote( inputStreamNote );
// return jkIS.read( chunk.getBytes(), chunk.getOffset(), chunk.getLength());
return jkIS.doRead( chunk );
}