AccessibleExtendedComponent.getToolTipText should return the tool tip text set for the component. But returns null for JSpinner,JComboBox,JPasswordField.

Code snippet to reproduce the bug :
comp.setToolTipText("This is the Tool Tip Text")'
  AccessibleExtendedComponent aextcomp = (AccessibleExtendedComponent)ac.getAccessibleComponent();
         System.out.println("Accessible Tool Tip text: " + aextcomp.getToolTipText());
###@###.### 2005-1-15 20:58:21 GMT