看Junit源代码，看到throw new fail (),没看明白，请教一下

[xiayiguo]

请教一下， fail不是一个方法吗？为什么需要new？

  /**
     * Fails a test with the given message.
     *
     * @param message the identifying message for the {@link AssertionError} (<code>null</code>
     * okay)
     * @see AssertionError
     */
    static public void fail(String message) {
        if (message == null) {
            throw new fail();
        }
        throw new fail(message);
    }

    /**
     * Fails a test with no message.
     */
    static public void fail() {
        fail(null);
    }