MNG-6189

As discussed in:

https://stackoverflow.com/questions/46742407/some-problems-were-encountered-while-building-the-effective-model-for when you see the warning:

[WARNING] 
[WARNING] Some problems were encountered while building the effective model for com.bitplan.antlr:com.bitplan.antlr:jar:0.0.1
[WARNING] Reporting configuration should be done in <reporting> section, not in maven-site-plugin <configuration> as reportPlugins parameter. @ line 213, column 20
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 

You have run into an issue that is explained in:

• https://issues.apache.org/jira/browse/MNG-6189

What to do?

You get this error if your configuration looks like this:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-site-plugin</artifactId>
  <version>3.0</version>
  <configuration>
    <!-- configuration of reports to be included in site -->
    <reportPlugins>
      <plugin>
      ...
      </plugin>
     <plugin>
      ...
      </plugin>
     <reportPlugins>
  </configuration>
</plugin>