Here's my question on Stack Overflow: What is the best practice for dealing with

sun.security.provider.certpath.SunCertPathBuilderException

in a Grails application? https://stackoverflow.com/questions/78893333/what-is-the-best-practice-for-dealing-with-sun-security-provider-certpath-suncer

For some reason I am not able to login to stackoverflow. If you replace the default certs, you'll get the error you got. You'll need to look at using the default keystore & loading the AWS certs additionally. There seems to already be a stackoverflow question related to having multiple stores: https://stackoverflow.com/questions/1793979/registering-multiple-keystores-in-jvm