port</strong> org.slf4j.Logger;
<a class="jxr_linenumber" name="L21" href="#L21">21</a>  <strong class="jxr_keyword">import</strong> org.slf4j.LoggerFactory;
<a class="jxr_linenumber" name="L22" href="#L22">22</a>
<a class="jxr_linenumber" name="L23" href="#L23">23</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L24" href="#L24">24</a>  <em class="jxr_javadoccomment"> * Hello world!</em>
<a class="jxr_linenumber" name="L25" href="#L25">25</a>  <em class="jxr_javadoccomment"> */<