[jira] Updated: (HARMONY-2753) [classlib][swing] javax.swing.LayoutFocusTraversalPolicy.getFirstComponent(null) throws NPE instead of IAE

["Alexander Simbirtsev (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/HARMONY-2753?page=all ]

Alexander Simbirtsev updated HARMONY-2753:
------------------------------------------

    Attachment: LayoutFocusTraversalPolicy-patch.txt

Here's the proposed fix

> [classlib][swing] javax.swing.LayoutFocusTraversalPolicy.getFirstComponent(null) throws NPE instead of IAE
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-2753
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2753
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Alexander Simbirtsev
>         Attachments: LayoutFocusTraversalPolicy-patch.txt
>
>
> According to the specification
> javax.swing.LayoutFocusTraversalPolicy.getFirstComponent/getLastComponent(Container
> aContainer) must throw IllegalAgumentexception is aContainer==null.
> RI throws IAE while Harmony throws NPE.
> Use the following code to reproduce:
> import javax.swing.LayoutFocusTraversalPolicy;
> import junit.framework.TestCase;
> public class Test extends TestCase {       
>     public void testcase1() {
>         LayoutFocusTraversalPolicy pl = new LayoutFocusTraversalPolicy();       
>         try {
>             pl.getFirstComponent(null);
>             fail("IllegalAgumentexception should be thrown");
>         } catch (IllegalArgumentException e) {
>             //expected
>         } catch (NullPointerException e) {
>             fail("IllegalAgumentexception should be thrown");
>         }
>     } 
>     public void testcase2() {
>         LayoutFocusTraversalPolicy pl = new LayoutFocusTraversalPolicy();       
>         try {
>             pl.getLastComponent(null);
>         } catch (IllegalArgumentException e) {
>             //expected
>         } catch (NullPointerException e) {
>             fail("IllegalAgumentexception should be thrown");
>         }      
>     }      
> }

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