It seems that some Maven artifacts are missing in the latest (final?) release of Maven 5.1.

Compare:

• https://search.maven.org/search?q=g:org.hibernate%20AND%20a:hibernate-*%20AND%20v:5.1.17.Final
• https://search.maven.org/search?q=g:org.hibernate%20AND%20a:hibernate-*%20AND%20v:5.1.16.Final

Specifically, it seems that these artifactIds are missing:

• hibernate-core
• hibernate-jpamodelgen