code: private AntBuilder getAnt() {
          if (this.ant == null) {
              AntBuilder ant = new AntBuilder();
              BuildLogger logger = (BuildLogger) ant.getAntProject().getBuildListeners().get(0);
              logger.setEmacsMode(true);
              this.ant = ant;
          }
          return this.ant;
      }
docs: Lazily initialize the AntBuilder, so we can pick up the log impl correctly.