public class FaultingObjectOutputStream extends ObjectOutputStream {
   public FaultingObjectOutputStream(OutputStream out) throws IOException {
     super(out);
     enableReplaceObject(true);
   }
 
   @Override
   protected Object replaceObject(final Object obj) throws IOException {
     try {
       faultInFields(obj, obj.getClass());
       return obj;
     } catch(IllegalAccessException e) {
       throw new IOException(e);
     }
   }
   
   protected void faultInFields(final Object obj, final Class<?> clazz) throws IllegalAccessException {
     for(final Field field : clazz.getDeclaredFields()) {
       if(!Modifier.isStatic(field.getModifiers())) {
         field.setAccessible(true);
         if(!field.getType().isArray()) {
           field.get(obj);
         } else {
           // Fault in every array element, just to be on the safe side...
           final Object array = field.get(obj);
           if(array != null) {
             for(int i = Array.getLength(array) - 1;i >= 0;i--) {
               Array.get(array, i);
             }
           }
         }
       }
     }
     if(clazz.getSuperclass() != null) {
       faultInFields(obj, clazz.getSuperclass());
     }
   }
 }