OpenSAML user discussion

[HÃ¥kon Tuvin Sagehaug <>]

Hi

I want to extend the saml 2 protocol, but have some problems getting it 
to work. I have an interface, a class that implements the interface, 
builder,marshaller and unmarshaller. In
my saml2-protocol-config.xml I have this information(both in the 
opensaml-src and opensaml-xmltooling):

<ObjectProvider qualifiedName="saml2p:XACMLAuthzDecisionQuery">
           <BuilderClass 
className="org.opensaml.saml2.core.impl.XACMLAuthzDecisionQueryBuilder" />
           <MarshallingClass 
className="org.opensaml.saml2.core.impl.XACMLAuthzDecisionQueryMarshaller" 
/>
           <UnmarshallingClass 
className="org.opensaml.saml2.core.impl.XACMLAuthzDecisionQueryUnmarshaller" 
/>
       </ObjectProvider>

       <ObjectProvider qualifiedName="saml2p:XACMLAuthzDecisionQueryType">
           <BuilderClass 
className="org.opensaml.saml2.core.impl.XACMLAuthzDecisionQueryBuilder" />
           <MarshallingClass 
className="org.opensaml.saml2.core.impl.XACMLAuthzDecisionQueryMarshaller" 
/>
           <UnmarshallingClass 
className="org.opensaml.saml2.core.impl.XACMLAuthzDecisionQueryUnmarshaller" 
/>
       </ObjectProvider>
and here is the error stack I'm getting

Exception in thread "main"
java.lang.NullPointerException
   at 
java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:919)
   at 
org.opensaml.xml.XMLObjectBuilderFactory.deregisterBuilder(XMLObjectBuilderFactory.java:115)
   at 
org.opensaml.xml.Configuration.deregisterObjectProvider(Configuration.java:123)
   at 
org.opensaml.xml.XMLConfigurator.initializeObjectProviders(XMLConfigurator.java:264)
   at org.opensaml.xml.XMLConfigurator.load(XMLConfigurator.java:179)
   at org.opensaml.xml.XMLConfigurator.load(XMLConfigurator.java:161)
   at org.opensaml.xml.XMLConfigurator.load(XMLConfigurator.java:129)
   at 
org.opensaml.DefaultBootstrap.initializeXMLTooling(DefaultBootstrap.java:127)
   at org.opensaml.DefaultBootstrap.bootstrap(DefaultBootstrap.java:71)
   at 
opensaml20.test.TestCreateSAML20Assertion.main(TestCreateSAML20Assertion.java:1036)

It looks to me that the builder can not be resolved or something.
Can anyone help me????

--
Håkon Sagehaug
Research Assistant
Parallab
Bergen Center for Computational Science (BCCS)