I am calling a web service and recently I have received the three .CER files for getting the production server access. My web service is working fine in development server and I already have trust(.jks) and keyStore(.p12) files in my workspace. what should I need to do with .CER files. While accessing the production URL I am getting below exception:
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target.
Please suggest.