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copied!<p>The problem is that Node's contain a lot of internal state about their context, which includes their parentage and the document by which they are owned. Neither <code>adoptChild()</code> nor <code>importNode()</code> place the new node anywhere in the destination document, which is why your code is failing.</p> <p>Since you want to copy the node and not move it from one document to another there are three distinct steps you need to take...</p> <ol> <li>Create the copy</li> <li>Import the copied node into the destination document</li> <li>Place the copied into it's correct position in the new document</li> </ol> <pre> for(Node n : nodesToCopy) { // Create a duplicate node Node newNode = n.cloneNode(true); // Transfer ownership of the new node into the destination document newDoc.adoptNode(newNode); // Make the new node an actual item in the target document newDoc.getDocumentElement().appendChild(newNode); } </pre> <p>The Java Document API allows you to combine the first two operations using <code>importNode()</code>.</p> <pre> for(Node n : nodesToCopy) { // Create a duplicate node and transfer ownership of the // new node into the destination document Node newNode = newDoc.importNode(n, true); // Make the new node an actual item in the target document newDoc.getDocumentElement().appendChild(newNode); } </pre> <p>The <code>true</code> parameter on <code>cloneNode()</code> and <code>importNode()</code> specifies whether you want a deep copy, meaning to copy the node and all it's children. Since 99% of the time you want to copy an entire subtree, you almost always want this to be true.</p>

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