java.awt.font.TransformAttribute.equals(null) throws NPE

Platform: all
JDK: 7, 8

The following method
http://download.oracle.com/javase/7/docs/api/java/awt/font/TransformAttribute.html#equals%28java.lang.Object%29

does not say anything regarding comparison with null argument value.

However implementation produces NPE.

Please see the following code sample:

import java.awt.font.TransformAttribute;
import java.awt.geom.AffineTransform;

public class TrAttrEqNull {

    public static void main(String[] args) {
        final TransformAttribute ta =
                new TransformAttribute(new AffineTransform(1, 0, 1, 1, 0, 0));
        ta.equals(null);
    }
}

The output will be:

Exception in thread "main" java.lang.NullPointerException
at java.awt.font.TransformAttribute.equals(TransformAttribute.java:149)