Oracle Application Explorer : Could not initialize JCA Container

While trying to connect to the JCA config on application explorer you may hit the below error message

Error stack is as mentioned below :

com.iwaysoftware.iwrepository.RepositoryException

        at com.iwaysoftware.iwrepository.xml.XMLRepository.end(XMLRepository.java:272)

        at com.iwaysoftware.iwrepository.xml.file.FileRepository.end(FileRepository.java:436)

        at com.iwaysoftware.iwrepository.xml.XMLQuery.executeQuery(XMLQuery.java:863)

        at com.iwaysoftware.af.container.IWAFRepositoryOP.getConfigs(IWAFRepositoryOP.java:167)

       ....

       ....

To fix this error go to $SOA_HOME/soa/thirdparty/ApplicationAdapters/config/<config_name> , Take a backup of the st_repository.xml file and delete it. Now restart Application explorer and try connecting. The error should be gone .....