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I am trying to call one URL through apex callouts but it is throwing this exception : "sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target" The same call is working with Postman/RESTlet Client. Can anyone tell me the exact issue. I am not getting it.

marked as duplicate by Eric apex Aug 18 '17 at 11:43

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