> javax.net.ssl.SSLHandshakeException: >sun.security.validator.ValidatorException: PKIX path building failed: >sun.security.provider.certpath.SunCertPathBuilderException: unable to >find valid certification path to requested
There's a linux package named ca-certificates(-java) which might be missing. You can see what's in /etc/ssl/certs/java/ & make sure you have them. Running external request workloads are not recommended - because for each failure, all previous results are discarded. Each retry will start from the 1st item and in general be wasteful & slow. Cheers, Gopal