javadoc标签：@throws 报错

//: object/HelloDate.java
import java.util.*;

/** The first Thinking in Java example program.
 * Displays a string and today's date.
 * @author Bruce Eckel
 * @author www.MindView.net
 * @version 4.0
*/

public class HelloDate {
  /** Entry point to class & application.
   * @param args array of string arguments
   * @throws exceptions No exceptions thrown
  */
 @SuppressWarnings("JavadocReference")
  public static void main(String[] args) {
    System.out.println("Hello, it's: ");
    System.out.println(new Date());
  }
} /* Output: (55% match)
Hello, it's:
Wed Oct 05 14:39:36 MDT 2005
*///:~

报错：Cannot resolve symbol 'exceptions'

添加 @SuppressWarnings("JavadocReference")后成功运行，不知道原因