Or how about I just add jetty-maven-plugin to pluginManagement in `modeshape-parent/pom.xml`?

```xml
  <plugin>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jetty-maven-plugin</artifactId>
    <version>8.1.9.v20130131</version>
  </plugin>
```

I'm not sure the property `jetty.maven.plugin.version` would ever be used apart from actually using the plugin itself, so I'd be inclined to rely on pluginManagement