[jboss-user] [Security & JAAS/JBoss] - NullPointerException thrown from LDAP Context

[jbosexplorer]

Hi There,
I'm trying to configure LDAP setup in my local JBoss 4.2.1 server. I've added 

    <application-policy name = "MY-LDAP">
       
		  <login-module code = "org.jboss.security.auth.spi.LdapExtLoginModule" flag = "required">
             <module-option name="java.naming.factory.initial">com.sun.jndi.ldap.LdapCtxFactory</module-option>
             <module-option name="java.naming.provider.url">ldap://myserver:389/</module-option>
             <module-option name="java.naming.security.authentication">simple</module-option>
			<module-option name="java.naming.security.credentials">password</module-option>			  
			<module-option name="java.naming.security.principal">uid=admin,ou=Administrators,ou=TopologyManagement,o=NetscapeRoot</module-option>
            <module-option name="userDN">ou=People, dc=company,dc=co,dc=uk</module-option> 
			<module-option name="bindCredential">password</module-option>			
			 <module-option name="rolesCtxDN">ou=Groups, dc=company,dc=co,dc=uk</module-option>
			 <module-option name="uidAttributeID">person</module-option>
			<module-option name="searchScope">SUBTREE_SCOPE</module-option>			  
			 <module-option name="restore-login-identity">true</module-option>
			 <module-option name="baseFilter">((uniquemember={0})(objectclass=groupofuniquenames))</module-option>  
          </login-module>
	   

and, added the following in my class file.

    LoginContext lc = new LoginContext("MY-LDAP",
        new CustomCallbackHandler(userId, password));

when I tried to access the application, getting the following error.

java.lang.NullPointerException
	at javax.naming.InitialContext.getURLScheme(InitialContext.java:228)
	at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:277)
	at javax.naming.directory.InitialDirContext.getURLOrDefaultInitDirCtx(InitialDirContext.java:87)
	at javax.naming.directory.InitialDirContext.search(InitialDirContext.java:267)
	at org.jboss.security.auth.spi.LdapExtLoginModule.bindDNAuthentication(LdapExtLoginModule.java:375)
	at org.jboss.security.auth.spi.LdapExtLoginModule.createLdapInitContext(LdapExtLoginModule.java:336)
	at org.jboss.security.auth.spi.LdapExtLoginModule.validatePassword(LdapExtLoginModule.java:229)
	at org.jboss.security.auth.spi.UsernamePasswordLoginModule.login(UsernamePasswordLoginModule.java:210)
	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:585)
	at javax.security.auth.login.LoginContext.invoke(LoginContext.java:769)
	at javax.security.auth.login.LoginContext.access$000(LoginContext.java:186)
	at javax.security.auth.login.LoginContext$4.run(LoginContext.java:683)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
	at javax.security.auth.login.LoginContext.login(LoginContext.java:579)

Can anybody help me??

Thanks.

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