I get an error when trying to build an updated hps-trunk at JLab:

Plugin org.apache.maven.plugins:maven-antrun-plugin:1.8 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-antrun-plugin:jar:1.8: Could not transfer artifact org.apache.maven.plugins:maven-antrun-plugin:pom:1.8 from/to central (https://repo.maven.apache.org/maven2): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target