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Date: Wed, 13 Jun 2007 10:36:26 -0700 (PDT)
From: "solprovider (JIRA)" <jira@apache.org>
To: dev@geronimo.apache.org
Subject: [jira] Created: (GERONIMO-3243) ActiveMQ violates System Properties
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ActiveMQ violates System Properties
-----------------------------------

                 Key: GERONIMO-3243
                 URL: https://issues.apache.org/jira/browse/GERONIMO-3243
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: ActiveMQ
    Affects Versions: 2.0-M3, 1.2, 2.0-M4
            Reporter: solprovider


The latest Geronimo 1.2 and 2.0 use ActiveMQ.  (Would someone familiar with Geronimo development please add all affected versions?)
ActiveMQ adds a HashMap as a global Property named "org.apache.activeio.journal.active.lockMap".
Properties must use Strings for keys and values per http://java.sun.com/j2se/1.4.2/docs/api/java/util/Properties.html
This causes any code reading all the Properties and expecting Strings to error.

The error can be produced with Cocoon's SitemapVariableHolder for XMAP constants:
<map:component-configurations><global-variables>
<myConstant>Hello World</myConstant>
</global-variables></map:component-configurations>
"{global:myConstant}" errors

The permanent fix is for Geronimo to update to a better version of ActiveMQ, either downgrading to before the bug was programmed or wait for the ActiveMQ team to follow the standards.  That is unlikely to be tested and released quickly.

The quick fix  is to disable the offensive code.  For Geronimo 1.2 on Windows, add this line at the beginning of STARTUP.BAT:
SET GERONIMO_OPTS=-Dorg.apache.activeio.journal.active.DisableLocking=true %GERONIMO_OPTS%

David Jencks suggested that Geronimo can set the org.apache.activeio.journal.active.DisableLocking property in a Geronimo SystemProperties gbean, there's one called ServerSystemProperties in j2ee-server.

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