Navigation links fail for LDAP groups in EPP 5

Issue

• We have moved to LDAP from default settings. Then I cannot access the Administration page. It responds with blank content.

• We have set up EPP 5 with LDAP, and we have also changed the permissions in all the files to match our group structure from LDAP. For this, we changed /platform/administrators to /acme/roles/admins in various *.xml files under 02portal.war.

We also tried to provide a custom navigation for the users in the LDAP groups. For instance, for our LDAP admins, we added the following files:

   gatein.ear/02portal.war/WEB-INF/conf/portal/group/acme/roles/admins/navigation.xml
   gatein.ear/02portal.war/WEB-INF/conf/portal/group/acme/roles/admins/pages.xml

While the content is almost the same as in the files under /platform/administrators, the navigation links fail. When logged in as an LDAP admin user, we see the Group navigation, but when we click on a link, we see the following error in the logs and a blank screen instead of the target page:

    ERROR [PortletApplicationController] Error while rendering the porlet
    org.exoplatform.groovyscript.TemplateRuntimeException: Groovy template exception at DataText[pos=Position[col=1,line=24],
        data=  boolean userCouldEditPage = uicomponent.hasEditPermissionOnPage();] 
        for template app:/groovy/admintoolbar/webui/component/UIAdminToolbarPortlet.gtmpl
            ... 

    Caused by: java.lang.NullPointerException
            at org.exoplatform.toolbar.webui.component.UIAdminToolbarPortlet.hasEditPermissionOnPage(UIAdminToolbarPortlet.java:100)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:597)
            at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
            at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
            at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:121)
            at UIAdminToolbarPortlet.run(UIAdminToolbarPortlet.gtmpl:24)
            at org.exoplatform.groovyscript.GroovyScript.render(GroovyScript.java:111)
            ... 203 more