Problems using using connector framework

Hi,

I am trying to use the connector framework, rather than creating direct JCO connection to system.

I have consulted the following links (got them here on SDN):

<<https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/using sap adapter for connector framework>>

<<https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/connect to sap systems.htm>>

****************************

Bottom line i use:

...

Object connectorservice =

PortalRuntime.getRuntimeResources().getService(IConnectorService.KEY);

IConnectorGatewayService cgService = (IConnectorGatewayService) connectorservice;

if (cgService == null) {

response.write("Error in get Connector Gateway Service <br>");

}

try {

ConnectionProperties p = new ConnectionProperties(request.getLocale(), request.getUser());

connection = cgService.getConnection(alias, p);

} catch (Exception e) {

}

...

The connection is always null. I have checked and I can, through EP run a transaction using this system and it works.

Thanks,

Azriel