API incompatibility while executing maven-help-plugin:effective-settings

Running mvn help:effective-settings works fine whether or not there is a pom.xml in the project directory. However, if the pom.xml in the project directory includes a specific plugin configuration, then this command throws an error "An API incompatibility was encountered while executing org.apache.maven.plugins:maven-help-plugin:2.1.1:effective-settings: java.lang.NoSuchMethodError: org.apache.maven.settings.Settings.getRuntimeInfo()Lorg/apache/maven/settings/RuntimeInfo;".

The plugin configuration that causes this error appears to be:

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-help-plugin</artifactId>
        <version>2.1.1</version>
        <configuration>
          <output>${basedir}/target/effective-settings.xml</output>
        </configuration>
        <executions>
          <execution>
            <phase>initialize</phase>
            <goals>
              <goal>effective-pom</goal>
            </goals>
          </execution>
        </executions>
      </plugin> 

The failure does not occur with Maven 3.1.1, but does occur with Maven 3.2.3. To recreate the problem place the attached pom.xml into a directory, navigate to the directory and run the command "mvn help:effective-settings".