Simple Wellformedness Checker

import org.apache.xerces.xni.parser.XMLInputSource;
import org.apache.xerces.xni.XNIException;
import org.cyberneko.pull.*;
import org.cyberneko.pull.event.*;
import org.cyberneko.pull.parsers.Xerces2;
import java.io.IOException;

 
public class NekoChecker {

  public static void main(String[] args) {
        
    if (args.length == 0) {
      System.err.println("Usage: java NekoChecker url" );
      return;   
    }
        
    try {
      XMLPullParser parser = new Xerces2();;
      XMLInputSource source = new XMLInputSource(null, args[0], null);
      parser.setInputSource(source);
        
      // read entire document
      while (parser.nextEvent() != null) ;
            
      // If we get here there are no exceptions
      System.out.println(args[0] + " is well-formed");      
    }
    catch (XNIException ex) {
       System.out.println(args[0] + " is not well-formed"); 
       System.out.println(ex);  
    }
    catch (IOException ex) {
      System.out.println(args[0] + " could not be checked due to an " + ex.getClass().getName());   
      ex.printStackTrace();      
    }
        
  }

}

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Copyright 2000-2002 Elliotte Rusty Harold
elharo@metalab.unc.edu
Last Modified November 6, 2002