Name: aaC67449 Date: 12/22/98


JToolBar.getComponentAtIndex(int index) throws unexpected ArrayIndexOutOfBoundsException, when index is invalid, but should only return null

javadoc says:"

public Component getComponentAtIndex(int i)

      Returns the component at the specified index.
      Parameters:
            i - the component's position, where 0=first
      Returns:
            the Component at that position, or null for an invalid index"

see example:
-------------- Example ------------
import javax.swing.*;

public class Test{
    public static void main(String argv[]) {
        JToolBar c=new JToolBar();
if(c.getComponentAtIndex(1)==null)
System.out.println("Ok");
else
System.out.println("Failed");
    }
}

class MyAction extends AbstractAction {
    public void actionPerformed(ActionEvent e){}
}
 

--------------- output----------
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: No such child: 1
        at java.awt.Container.getComponent(Compiled Code)
        at javax.swing.JToolBar.getComponentAtIndex(Compiled Code)
        at Test.main(Compiled Code)

======================================================================