When we build in Eclipse or VisualStudio we get the following errors:

The type org.eclipse.jdt.annotation.NonNullByDefault cannot be resolved. It is indirectly referenced from required type org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration{color}{color:#d4d4d4}Java(16777563)

This as per the below analysis, this seems to stem from <scope>provided</scope> dependencies provided by odlparent/pom.xml. Downstreams which do not have those implicit dependencies can observe such missing references.