Build failures when handling certificates

[geoffwhittington]

@MadsNielsen @buep We've hit an issue when attempting to connect to another server. What is the best practice we should follow to resolve this issue? We can discuss via email as well.

Running as SYSTEM
Building in workspace /var/lib/jenkins/jobs/SD Elements Freestyle/workspace
[Checks API] No suitable checks publisher found.
Unknown exception encountered.
Exception message: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
SD Elements risk status: Undetermined
Build step 'SD Elements' changed build result to FAILURE
[Checks API] No suitable checks publisher found.
Finished: FAILURE