DOMBuilder Example

import org.jdom.*;
import org.jdom.input.DOMBuilder;
import org.apache.xerces.parsers.*;


public class DOMValidator {

  public static void main(String[] args) {
  
    if (args.length == 0) {
      System.out.println("Usage: java DOMValidator URL1 URL2..."); 
    }      
      
    DOMBuilder builder = new DOMBuilder(true);
                             /*         ^^^^       */
                             /* Turn on validation */
    // start parsing... 
    DOMParser parser = new DOMParser();  // Xerces specific class
    for (int i = 0; i < args.length; i++) {
        
      try {
        // Read the entire document into memory
        parser.parse(args[i]); 
    
        org.w3c.dom.Document domDoc  = parser.getDocument();
        org.jdom.Document    jdomDoc = builder.build(domDoc);

        // If there are no validity errors, 
        // then no exception is thrown
        System.out.println(args[i] + " is valid.");
      }
             // indicates a well-formedness or validity error
      catch (Exception e) { 
        System.out.println(args[i] + " is not valid.");
        System.out.println(e.getMessage());
      }
      
    }   
  
  }

}