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From "Dain Sundstrom (JIRA)" <...@geronimo.apache.org>
Subject [jira] Created: (GERONIMO-2510) CORBA/RMI delegate code requires delegate implementation to be on the system classpath
Date Fri, 20 Oct 2006 01:19:34 GMT
CORBA/RMI delegate code requires delegate implementation to be on the system classpath
--------------------------------------------------------------------------------------

                 Key: GERONIMO-2510
                 URL: http://issues.apache.org/jira/browse/GERONIMO-2510
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: CORBA
            Reporter: Dain Sundstrom


When the java.rmi.Util class is loaded, it uses Class.forName to load the UtilDelegate specified
in a system property.  This is what yoko uses:

    private static UtilDelegate delegate = null;
    private static final String defaultDelegate = "org.apache.yoko.rmi.impl.UtilImpl";

    static {
        // Initialize delegate
        String delegateName = System.getProperty("javax.rmi.CORBA.UtilClass", defaultDelegate);
        try {
            delegate = (UtilDelegate)Class.forName(delegateName).newInstance();
        } catch (Exception e) {
            throw new RuntimeException("Can not create Util delegate: "+delegateName, e);
        }
    }


IIRC Class.forName(String) uses the class loader of the class containing the code, and since
java.rmi.Util will always be on the system class path our delegate must be on the system class
path :(

I see a few choices:

* change yoko to use the thread context class loader... then add a gbean to set the property
and load the Util class. repeat of every delegate class.
* write a delegate delegate that allows us to swap out the actual delegate implementation
later
* split out out delegate class into a jar we can put on the system class path



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