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MQSeries.net Forum Index » IBM MQ API Support » message Id byte array changing

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gss4u
PostPosted: Thu Jun 09, 2005 11:45 pm    Post subject: message Id byte array changing Reply with quote

Newbie

Joined: 20 May 2005
Posts: 9
In java, i am retrieving the messages from queue and storing the messages in the hashmap with messageid(byte []) as key and message string as value. Now when i retrieve message id back...and try to seach the message with the message id given as matchoptions then i am getting the 2033 error(ie. no messag found) when i conver the byte array to string to see the message id string... i found that string while storing to the hashmap is different from what i get back from the hashmap.... please help
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jefflowrey
PostPosted: Fri Jun 10, 2005 3:30 am    Post subject: Reply with quote

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Joined: 16 Oct 2002
Posts: 19981
It is somewhat likely that Hashmap calls toString on the object it's given as a key.

This will hose up your messageID from an MQ perspective.
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fjb_saper
PostPosted: Fri Jun 10, 2005 7:47 am    Post subject: Reply with quote

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Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
This really depends on the methods you use to setup your hashmap.

A) do use put(object, object)
b) do use get(object)

And DO NOT USE any strings as representation of a byte[] unless it is the hex representation of every byte in the array...

Enjoy
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