It seems cobertura has not been updated since 2015 ( https://github.com/cobertura/cobertura/releases) and does not work on Java > 9:
[INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 05:24 min [INFO] Finished at: 2018-06-20T14:28:47-06:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.7:site (default-site) on project commons-pool2: failed to get report for org.codehaus.mojo:cobertura-maven-plugin: Plugin org.codehaus.mojo:cobertura-maven-plugin:2.7 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:0 at specified path C:\Program Files\Java\jdk-9.0.4/../lib/tools.jar -> [Help 1] [ERROR] I say we remove it from commons-parent and use Jacoco from now on. Thoughts? Gary