Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Question

I have a class that will download a file from a https server. When I run it, it returns a lot of errors. It seems that I have a problem with my certificate

Answer 1

In my case I had both keystore and truststore having the same certificate so removing truststore helped. Sometimes the chain of certificates can be an issue if you've multiple copies of certificates.