Problem building showcase

[zobbo]

Hello, I pulled the latest master from the showcase on github, but I get the following error when building:

[WARNING] Could not transfer metadata org.primefaces:primefaces:6.2-SNAPSHOT/maven-metadata.xml from/to prime-repo (http://repository.primefaces.org): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[WARNING] Failure to transfer org.primefaces:primefaces:6.2-SNAPSHOT/maven-metadata.xml from http://repository.primefaces.org was cached in the local repository, resolution will not be reattempted until the update interval of prime-repo has elapsed or updates are forced. Original error: Could not transfer metadata org.primefaces:primefaces:6.2-SNAPSHOT/maven-metadata.xml from/to prime-repo (http://repository.primefaces.org): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Could not resolve dependencies for project org.primefaces:showcase:war:6.2-SNAPSHOT: Failed to collect dependencies at net.sf.barcode4j:barcode4j-light:jar:2.1: Failed to read artifact descriptor for net.sf.barcode4j:barcode4j-light:jar:2.1: Could not transfer artifact net.sf.barcode4j:barcode4j-light:pom:2.1 from/to prime-repo (http://repository.primefaces.org): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target -> [Help 1]

Is something I need to fix locally or something wrong with the repo?

Cheers,
Zobbo