JInternalFrame.getNormalBounds() returns normalBounds when maximized state is false instead of bounds

The behavior of getNormallBounds()
https://download.java.net/java/early_access/jdk17/docs/api/java.desktop/javax/swing/JInternalFrame.html#getNormalBounds()
is not as per spec when - "JInternalFrame is not in maximized state"

For example :
=========
 Rectangle bounds = new Rectangle(96, 97, 98, 99);
        Rectangle nbounds = new Rectangle(196, 197, 198, 199);
        JDesktopPane p = new JDesktopPane();
        FakeJInternalFrame jif = new FakeJInternalFrame();
        p.add(jif);
        jif.setBounds(bounds);
        jif.setNormalBounds(nbounds);
        try {
            jif.setMaximum(false);
        } catch (PropertyVetoException e) {
            return Status.failed( "unexpected " + e );
        }
        if (jif.getNormalBounds().equals(jif.getBounds())) {
            return Status.passed( "OKAY" );
        }

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Expectation : getNormalBounds() supposed to return bounds, ( As jif is not in maximized state)
Actual : getNormalBounds() returns the nbounds.