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import java.io.File;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class Main {
public static void main(String[] argv) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true);
factory.setExpandEntityReferences(false);
Document doc = factory.newDocumentBuilder().parse(new File("filename"));
removeAll(doc, Node.ELEMENT_NODE, "junk");
removeAll(doc, Node.COMMENT_NODE, null);
doc.normalize();
}
public static void removeAll(Node node, short nodeType, String name) {
if (node.getNodeType() == nodeType && (name == null || node.getNodeName().equals(name))) {
node.getParentNode().removeChild(node);
} else {
NodeList list = node.getChildNodes();
for (int i = 0; i < list.getLength(); i++) {
removeAll(list.item(i), nodeType, name);
}
}
}
}
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