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From "Elliotte Rusty Harold (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-1282) Bad conversion of nonexistent data in MapMessage
Date Thu, 14 Jun 2007 19:21:32 GMT
Bad conversion of nonexistent data in MapMessage
------------------------------------------------

                 Key: AMQ-1282
                 URL: https://issues.apache.org/activemq/browse/AMQ-1282
             Project: ActiveMQ
          Issue Type: Bug
          Components: JMS client
    Affects Versions: 4.1.1
            Reporter: Elliotte Rusty Harold


Consider simple reception code like this:

        MapMessage message = (MapMessage) consumer.receive(1000);
        int x = message.getInt("foo"));

I notice that x is now set to zero even though there was no "foo" value in the map. I would
have expected an exception.

According to Gaurav Hariani <gaurav@blackspark.com> 	

also from the spec api: http://java.sun.com/j2ee/1.4/docs/api/javax/jms/MapMessage.html

    Attempting to read a null value as a primitive type must be treated as calling the primitive's
corresponding valueOf(String) conversion method with a null value. Since char does not support
a String conversion, attempting to read a null value as a char must throw a NullPointerException.

.. so you are right that it is a bug ... since Integer.valueOf(null) throws an Exception

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