package apusic.myshop.control.web;import java.util.Collection;//public class MissingFormDataException extends Exception {  private Collection missingFields;  private String message;  public MissingFormDataException(String message, Collection missingFields) {    this.message = message;    this.missingFields = missingFields;  }  public Collection getMissingFields() {    return missingFields;  }  public String getMessage() {    return message;  }}