problem in publishing more than one property.

i m publishing more than one property of byte array.my situation is i m reading a file and writing into a temp file.for this i m first publishing for read and then for write.In the subscriber side i my subscribing both property of read and write.Now, in the subscriber's RunL() for the first time it is notifying properly for first time change in read and write. but for next time for change in read it is notifying to write in the subscriber RunL().
i have defined different key and uid for read and write property.