اريد حل لمشكلة في Webservice Consumer

I have a Java client app deployed on WebLogic 12c server, which communicates through WebService with other outside apps either through http or https…
I configured the weblogic server with a custom Identity store which contains all SSL certificates that I need to establish  the communications.
The problem that I am facing  now  is the WebLogic it generating the following error message when I trying to call one of those  outside systems through https.
javax.xml.ws.WebServiceException: weblogic.wsee.ws.init.WsDeploymentException: weblogic.wsee.security.configuration.WssConfigurationException: KeyStoreFilename not supplied
note that the outside system has three certificates which all is installed on the trust key store.