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From "David Jencks (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-1254) Kaha Store puts a non-string into System properties
Date Mon, 28 May 2007 22:41:32 GMT
Kaha Store puts a non-string into System properties
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                 Key: AMQ-1254
                 URL: https://issues.apache.org/activemq/browse/AMQ-1254
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 4.1.2
            Reporter: David Jencks
         Attachments: Kaha-Store.patch

KahaStore puts a hashmap into SystemProperties, which causes problems with programs that expect
only strings as properties.  In particular some versions of Hibernate assume all system properties
are strings: this is causing difficulties running roller in geronimo 2.0

Attached is a proposed solution.  I have no idea how to test it.  I get the same 7 failures
and one error building amq with and without the change.

The proposal stores the list of locked directories in a string and converts it back and forth
to a map whenever it is accessed.  I use a constant string as the vm-wide lock monitor formerly
provided by the HashSet.  According to the String javadoc constant strings are intern()ed
and the same instance is provided in any classloader: this makes it suitable for a vm-wide
lock monitor.

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