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From "Oleg Khaschansky (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-2822) [classlib][swing] javax.swing.plaf.basic.BasicFileChooserUI.installDefaults(null) returns null while RI throws NPE
Date Wed, 20 Dec 2006 15:51:21 GMT
[classlib][swing] javax.swing.plaf.basic.BasicFileChooserUI.installDefaults(null) returns null
while RI throws NPE
------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-2822
                 URL: http://issues.apache.org/jira/browse/HARMONY-2822
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: Oleg Khaschansky
            Priority: Minor


javax.swing.plaf.basic.BasicFileChooserUI.installDefaults(null) returns null on Harmony while
RI throws NPE.
Current implementation of BasicFileChooserUI.installDefaults(JFileChooser fc) simply ignores
the parameter, so it doesn't throw this unspecified NPE. I suggest to treat this as a non-bug
difference.

The following testcase demonstrates this behavior:
--------------------------------------------------------------------------------------
import junit.framework.TestCase;

import javax.swing.plaf.basic.BasicFileChooserUI;
import javax.swing.*;
import java.lang.reflect.InvocationTargetException;

public class Test0 extends TestCase {
    public void testcase1() {
        BasicFileChooserUI jm = new BasicFileChooserUI(null);
        java.lang.reflect.Method mt = null;
        Class cls = BasicFileChooserUI.class;
        try{
            mt = cls.getDeclaredMethod( "installDefaults", JFileChooser.class);
        } catch(Exception e) {
            e.printStackTrace();
        }
        mt.setAccessible(true);
        Object[] obj ={null};
        try {
            mt.invoke(jm, obj );
            fail("NPE should be thrown");
        } catch ( IllegalAccessException ae) {
            ae.printStackTrace();
        } catch ( InvocationTargetException ie) {
        }
    }
}



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