On http://java.sun.com/products/jdk/1.2/docs/api/java/lang/Object.html,

In the clone() method detail, the word "x.close" should be "x.clone()"
Notice both the misspelling of "clone" but also the missing parentheses.

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Date: Sun, 22 Nov 1998 08:55:21 GMT
From: <###@###.###>

The line started with "protected Object clone()
                throws CloneNotSupportedException"

 has some mistypes, I think, which are:

 x.close.getClass() == x.getClass()

 x.close.equals(x)

 These lines are changed to with clone():

 x.clone().getClass() == x.getClass()
 x.clone().equalsx(x)

 I can't understand x.close.

 regards
               Young-Je