ICO0018E javax.resource.ResourceException:
ICO0018E:methodname error.
The
value provided for PortNumber is null.
Explanation
The method indicated in methodname was
invoked using a null PortNumber.
User response
Provide a valid PortNumber parameter. In a managed
environment, the property value is specified when you are configuring
a Connection Factory to be used by WebSphere® Application
Server. In a non-managed
environment, the property value is specified in your Java™ application.