@jayproulx that for your reply, we are using oraclejdk/1.7.0_80

Even if I try to go to 'http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException' ut says Page not found.

yes, we are still using 1.7 but after this error started appearing trying to fix these. Previously same build was working but all of a sudden started getting these errors.

I am also facing same problem and even upgrading to JDK 8 is not working for me. [INFO] Scanning for projects... Downloading: https://repo.adobe.com/nexus/content/groups/public/com/day/jcr/vault/content-package-maven-plugin/0.0.23/content-package-maven-plugin-0.0.23.pom [ERROR] [ERROR] Some problems...