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    <p>I was wondering whether it would be easy to do this with the <a href="http://www.xom.nu/" rel="nofollow noreferrer">XOM</a> library and gave it a try. </p> <p>It turned out to be quite easy:</p> <pre><code>import nu.xom.*; import java.io.File; import java.io.IOException; public class RemoveEmptyTags { public static void main(String[] args) throws IOException, ParsingException { Document document = new Builder().build(new File("original.xml")); handleNode(document.getRootElement()); System.out.println(document.toXML()); // empty elements now removed } private static void handleNode(Node node) { if (node.getChildCount() == 0 &amp;&amp; "".equals(node.getValue())) { node.getParent().removeChild(node); return; } // recurse the children for (int i = 0; i &lt; node.getChildCount(); i++) { handleNode(node.getChild(i)); } } } </code></pre> <p>This probably won't handle all corner cases properly, like a completely empty document. And what to do about elements that are otherwise empty but have attributes?</p> <p>If you want to save XML tags with attributes, we can add in the method 'handleNode' the following check:</p> <pre><code>... &amp;&amp; ((Element) node).getAttributeCount() == 0) ) </code></pre> <p>Also, if the xml has two or more empty tags, one after another; this recursive method doesn't remove all empty tags!</p> <p>(This answer is part of my evaluation of XOM as a potential <a href="https://stackoverflow.com/questions/831865/what-java-xml-library-do-you-recommend-to-replace-dom4j">replacement to dom4j</a>.)</p>
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