* }</pre>
 *
 * <h2>When to Use DomUtils</h2>
 * <p>Use DomUtils methods when you need:
 * <ul>
 * <li>Maven-specific element ordering (insertNewElement, insertContentElement)</li>
 * <li>High-level helpers (addGAVElements, createDependency, createPlugin)</li>
 * <li>Null-safe operations (updateElementContent, removeElement)</li>
 * <li>Update-or-create patterns (updateOrCreateChildElement)</li>
 * </ul>
 *

        Element dependency = DomUtils.findChildElement(dependencies, "dependency");

        // Test adding GAV elements with version
        DomUtils.addGAVElements(dependency, "org.example", "test-artifact", "1.0.0");

        String xmlOutput = DomUtils.toXml(doc);
        assertTrue(xmlOutput.contains("<groupId>org.example</groupId>"), "Should contain groupId");