Les,
I tracked this problem down through a maze of try/catch blocks, I see this 
exception:

javax.servlet.ServletException: Unable to load from text configuration. 
e2=org.apache.shiro.config.ConfigurationException: 
org.apache.shiro.config.ConfigurationException: Unable to set property 
[sessionDAO] with value [$sessionDAO].  If '$sessionDAO' is a reference to 
another (previously defined) object, please prefix it with '$' to indicate that 
the referenced object should be used as the actual value.  For example, 
$$sessionDAO

...which I tracked down to the ReflectionBuilder.applyProperty() method calling 
BeanUtils.setProperty() and catching an InvocationException. The cause of that 
exception is:

java.lang.IllegalArgumentException: The underlying session manager is null or 
does not implement the org.apache.shiro.session.mgt.eis.SessionDAO
interface, which is required if the underlying instance is to receive the 
sessionDAO argument. 


...which comes from SessionsSecurityManager.setSessionDAO(), which checks
to see that the SessionDAO parameter implements SessionDAOAware. The passed 
value is actually of class ServletContainerSessionManager, which does NOT
implement SessionDAOAware.

So I guess the mystery is why we're getting setSessionDAO() being passed a 
ServletContainerSessionManager, when in fact we have this config line:

   sessionDAO = org.apache.shiro.session.mgt.eis.MemorySessionDAO

Hope this helps,
Andy




> -----Original Message-----
> From: Andy Tripp [mailto:[email protected]]
> Sent: Tuesday, August 18, 2009 10:04 AM
> To: [email protected]
> Subject: RE: need more help with SSO
> 
> Les,
> 
> I tried what you have below and still get the same "Unable to load from
> text configuration" error. I tried it with the latest Shiro. I narrowed
> the problem down to this line:
> 
> securityManager.sessionDAO = $sessionDAO
> 
> I get no errors with that line commented out.
> 
> Any ideas? If not, I could put some tracing in the OncePerRequestFilter
> class to narrow the problem down further.
> 
> Andy
> 
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]] On
> > Behalf Of Les Hazlewood
> > Sent: Monday, August 17, 2009 5:11 PM
> > To: [email protected]
> > Subject: Re: need more help with SSO
> >
> > Hi Andy,
> >
> > I just verified that this simple test config works, although not in a
> > web environment:
> >
> > ----
> > realmA = org.apache.shiro.realm.text.PropertiesRealm
> >
> > securityManager.sessionMode = native
> >
> > cacheManager = org.apache.shiro.cache.DefaultCacheManager
> >
> > sessionDAO = org.apache.shiro.session.mgt.eis.MemorySessionDAO
> > sessionDAO.cacheManager = $cacheManager
> > securityManager.sessionDAO = $sessionDAO
> > securityManager.cacheManager = $cacheManager
> >
> > securityManager.realm = $realmA
> > ----
> >
> > Could you please try that out and see if it works in your web
> > environment?  If so, can you try substituting the DefaultCacheManager
> > implementation (and your realm implementation) with with your
> > implementations and see what happens?
> >
> > - Les
> >
> > On Mon, Aug 17, 2009 at 4:27 PM, Andy Tripp<[email protected]>
> > wrote:
> > > Here's the complete tomcat log file:
> > >
> > > Aug 17, 2009 3:40:13 PM org.apache.catalina.core.StandardContext
> > filterStart
> > > SEVERE: Exception starting filter ShiroFilter
> > > javax.servlet.ServletException: Unable to load from text
> configuration.
> > >        at
> >
> org.apache.shiro.web.servlet.OncePerRequestFilter.init(OncePerRequestFilte
> > r.java:148)
> > >        at
> >
> org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilt
> > erConfig.java:221)
> > >        at
> >
> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationF
> > ilterConfig.java:302)
> > >        at
> >
> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterC
> > onfig.java:78)
> > >        at
> >
> org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:
> > 3635)
> > >        at
> >
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4222)
> > >        at
> >
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java
> > :760)
> > >        at
> > org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
> > >        at
> > org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
> > >        at
> >
> org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:927
> > )
> > >        at
> >
> org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:8
> > 90)
> > >        at
> > org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
> > >        at
> > org.apache.catalina.startup.HostConfig.start(HostConfig.java:1150)
> > >        at
> >
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
> > >        at
> >
> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupp
> > ort.java:120)
> > >        at
> > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
> > >        at
> > org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
> > >        at
> > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
> > >        at
> > org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
> > >        at
> > org.apache.catalina.core.StandardService.start(StandardService.java:448)
> > >        at
> > org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
> > >        at
> org.apache.catalina.startup.Catalina.start(Catalina.java:552)
> > >        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > >        at
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> > 39)
> > >        at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorIm
> > pl.java:25)
> > >        at java.lang.reflect.Method.invoke(Method.java:597)
> > >        at
> > org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
> > >        at
> org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
> > > Aug 17, 2009 3:40:13 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: org.apache.webapp.balancer.BalancerFilter: init(): ruleChain:
> > [org.apache.webapp.balancer.RuleChain:
> > [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string:
> News
> > / Redirect URL: http://www.cnn.com],
> > [org.apache.webapp.balancer.rules.RequestParameterRule: Target param
> name:
> > paramName / Target param value: paramValue / Redirect URL:
> > http://www.yahoo.com],
> > [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL:
> > http://jakarta.apache.org]]
> > > Aug 17, 2009 3:40:13 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: ContextListener: contextInitialized()
> > > Aug 17, 2009 3:40:13 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: SessionListener: contextInitialized()
> > > Aug 17, 2009 3:40:13 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: ContextListener: contextInitialized()
> > > Aug 17, 2009 3:40:13 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: SessionListener: contextInitialized()
> > > Aug 17, 2009 4:25:59 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: SessionListener: contextDestroyed()
> > > Aug 17, 2009 4:25:59 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: ContextListener: contextDestroyed()
> > > Aug 17, 2009 4:25:59 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: SessionListener: contextDestroyed()
> > > Aug 17, 2009 4:25:59 PM org.apache.catalina.core.ApplicationContext
> log
> > > INFO: ContextListener: contextDestroyed()
> > >
> > >> -----Original Message-----
> > >> From: Les Hazlewood [mailto:[email protected]]
> > >> Sent: Monday, August 17, 2009 4:24 PM
> > >> To: [email protected]
> > >> Subject: Re: need more help with SSO
> > >>
> > >> Hi Andy,
> > >>
> > >> It goes in the main section, definitely.  Is there any more to the
> > >> exception?  I'd like to see the entire stack trace if possible.
> > >>
> > >> - Les
> > >>
> > >> On Mon, Aug 17, 2009 at 3:41 PM, Andy Tripp<[email protected]>
> > >> wrote:
> > >> > I created my own Cache and CacheManager:
> > >> >
> > >> > public class VonageDistributedSessionCache implements Cache {
> > >> >    public VonageDistributedSessionCache(String name) {
> > >> >        System.err.println("VonageDistributedSessionCache
> > >> > constructor.");
> > >> >    }
> > >> >    ...
> > >> > }
> > >> >
> > >> > public class VonageDistributedSessionCacheManager implements
> > >> > CacheManager {
> > >> >    public Cache getCache(String name) throws CacheException {
> > >> >        return new VonageDistributedSessionCache(name);
> > >> >    }
> > >> > }
> > >> >
> > >> > Then in [main] section of my ShiroFilter in web.xml, I have:
> > >> >   [main]
> > >> >   realmA = com.vonage.auth.client.VonageAuthenticationRealm
> > >> >
> > >> >   securityManager.sessionMode = native
> > >> >
> > >> > And when I add this:
> > >> >  # pull in vonage centralized authentication:
> > >> >  cacheManager =
> > >> > com.vonage.auth.client.VonageDistributedSessionCacheManager
> > >> >  sessionDAO = org.apache.shiro.session.mgt.eis.MemorySessionDAO
> > >> >  sessionDAO.cacheManager = $cacheManager
> > >> >  securityManager.sessionDAO = $sessionDAO
> > >> >  securityManager.cacheManager = $cacheManager
> > >> >
> > >> > ...I get this error:
> > >> > javax.servlet.ServletException: Unable to load from text
> > configuration.
> > >> >
> > >> > So...does this injection go here in the [main] section of
> > ShiroFilter,
> > >> > or somewhere else?
> > >> >
> > >> > Thanks,
> > >> > Andy
> > >> >
> > >

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