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From "Elliotte Rusty Harold (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AMQ-1282) Bad conversion of nonexistent data in MapMessage
Date Fri, 15 Jun 2007 13:59:32 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-1282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Elliotte Rusty Harold updated AMQ-1282:
---------------------------------------

    Attachment: MapMessageTest.java

JUnit test case demonstrating bugs in MapMessage class with conversion of unmapped values

> 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
>         Attachments: MapMessageTest.java
>
>
> 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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