Error with ldap ( also happens with spring ldap)

The code works fine on jboss5.1, but porting to jboss7 causes ObjectRetreivalException

The problem started with SpringLdap 1.3
Using the same configuration and code source available at ( (http://static.springsource.org/spring-ldap/docs/1.3.x/reference/html/introduction.html )

gives following exception.
org.springframework.ldap.core.ObjectRetrievalException: Binding did not contain any object.

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Without Springldap it gives the following exception
Root exception is javax.naming.NotContextException: Cannot create context for: ldap://ForestDnsZones

I am using the TraditionalPersonDAOImpl available on SpringLdap
(http://static.springsource.org/spring-ldap/docs/1.3.x/reference/html/introduction.html )

If i run the code as standalone java application it works fine. Also it works in jboss5.1