Upgrade migration path for atlassian-user/osuser hybrid configuration.

<atlassian-user>
    <repositories>
        <hibernate name="Hibernate Repository" key="hibernateRepository"  description="Hibernate Repository" cache="true"/> 
        <osuser name="OSUser Repository" key="osuserRepository"/>
      
    </repositories>
</atlassian-user>

<opensymphony-user>
    <!--
		Authenticators can take properties just like providers.

		This smart authenticator should work for 'most' cases - it dynamically looks up
		the most appropriate authenticator for the current server.
	-->
    <authenticator class="com.opensymphony.user.authenticator.SmartAuthenticator"/>


	<provider class="com.atlassian.confluence.user.ConfluenceLDAPCredentialsProvider">
	 <property name="java.naming.factory.initial">com.sun.jndi.ldap.LdapCtxFactory</property>
	 <property name="java.naming.provider.url">ldap://crowd-ad1:389</property>
	 <property name="searchBase">dc=sydney,dc=atlassian,dc=com</property>
	 <property name="uidSearchName">cn</property>
	 <property name="java.naming.security.principal">cn=Administrator,cn=Users,dc=sydney,dc=atlassian,dc=com</property>
	 <property name="java.naming.security.credentials">atlassian</property>
	 <property name="exclusive-access">true</property>
	</provider>
<!--

    <provider class="bucket.user.providers.CachingCredentialsProvider">
        <property name="chain.classname">com.atlassian.confluence.user.providers.jira.JiraJdbcCredentialsProvider</property>
        <property name="chain.datasource">java:comp/env/jdbc/JiraDS</property>
    </provider>
    <provider class="bucket.user.providers.CachingAccessProvider">
        <property name="chain.classname">com.atlassian.confluence.user.providers.jira.JiraJdbcAccessProvider</property>
        <property name="chain.datasource">java:comp/env/jdbc/JiraDS</property>
    </provider>
    <provider class="bucket.user.providers.CachingProfileProvider">
        <property name="chain.classname">com.atlassian.confluence.user.providers.jira.JiraJdbcProfileProvider</property>
        <property name="chain.datasource">java:comp/env/jdbc/JiraDS</property>
        <property name="chain.configuration.provider.class">bucket.user.BucketHibernateConfigProvider</property>
    </provider>
 -->
    <provider class="bucket.user.providers.CachingCredentialsProvider">
        <property name="chain.classname">com.opensymphony.user.provider.hibernate.HibernateCredentialsProvider</property>
        <property name="chain.configuration.provider.class">bucket.user.BucketHibernateConfigProvider</property>
    </provider>
    <provider class="bucket.user.providers.CachingAccessProvider">
        <property name="chain.classname">com.opensymphony.user.provider.hibernate.HibernateAccessProvider</property>
        <property name="chain.configuration.provider.class">bucket.user.BucketHibernateConfigProvider</property>
    </provider>

    <provider class="bucket.user.providers.CachingProfileProvider">
        <property name="chain.classname">com.opensymphony.user.provider.hibernate.HibernateProfileProvider</property>
        <property name="chain.configuration.provider.class">bucket.user.BucketHibernateConfigProvider</property>
    </provider>
    <!--<provider class="com.opensymphony.user.provider.memory.MemoryCredentialsProvider" />
    <provider class="com.opensymphony.user.provider.memory.MemoryAccessProvider" />
    <provider class="com.opensymphony.user.provider.memory.MemoryProfileProvider" />-->
</opensymphony-user>

2011-03-22 12:38:23,262 INFO [main] [confluence.upgrade.upgradetask.EmbeddedCrowdInitUpgradeTask] doUpgrade Created new crowd application object.
2011-03-22 12:38:23,342 ERROR [main] [atlassian.confluence.upgrade.UpgradeLauncherServletContextListener] contextInitialized Upgrade failed, application will not start: java.lang.UnsupportedOperationException: Unrecognised user management configuration can not be upgraded.
com.atlassian.confluence.upgrade.UpgradeException: java.lang.UnsupportedOperationException: Unrecognised user management configuration can not be upgraded.
        at com.atlassian.confluence.upgrade.AbstractUpgradeManager.upgrade(AbstractUpgradeManager.java:84)
        at com.atlassian.confluence.upgrade.impl.DefaultUpgradeManager.upgrade(DefaultUpgradeManager.java:139)
        at com.atlassian.confluence.upgrade.UpgradeLauncherServletContextListener.contextInitialized(UpgradeLauncherServletContextListener.java:28)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4205)