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From "Vera Aristova (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1702) javax.swing.JLayeredPane.getLayer(Component comp) does not throw NPE
Date Thu, 05 Oct 2006 06:59:20 GMT
javax.swing.JLayeredPane.getLayer(Component comp)  does not throw NPE 
----------------------------------------------------------------------

                 Key: HARMONY-1702
                 URL: http://issues.apache.org/jira/browse/HARMONY-1702
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: Vera Aristova
            Priority: Minor


javax.swing.JLayeredPane.getLayer(Component comp)  does not throw unspecified NPE when  comp
is null while RI does throw NPE.

========test .java==============
import junit.framework.TestCase;
import javax.swing.JLayeredPane;
import java.awt.event.ComponentAdapter;
import java.awt.Component;

public class test extends TestCase 
{
	public static class TestComponentAdapter extends ComponentAdapter 
	{
	}
	public void testGetLayerComponent() 
	{
		JLayeredPane localJLayeredPane = new JLayeredPane();
		TestComponentAdapter localTestComponentAdapter = new TestComponentAdapter();
		localJLayeredPane.addComponentListener(localTestComponentAdapter);
		try 
		{
			localJLayeredPane.getLayer((Component) null);
			System.out.println("does not throw NPE!");
			assertEquals(true, false);
		} 
		catch (NullPointerException e) 
		{e.printStackTrace();
         assertEquals(true, true);
		}			
	}
}
============================================
Output :
=========== Harmony ================== 
 Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its
licensors, as applicable. 
java version "1.5.0" pre-alpha : not complete or compatible 
svn = r452710, (Oct 4 2006), Windows/ia32/msvc 1310, release build 
http://incubator.apache.org/harmony 
.does not throw NPE!
F
Time: 0.484
There was 1 failure:
1) testGetLayerComponent(test)junit.framework.AssertionFailedError: expected:<true>
but was:<false>
        at test.testGetLayerComponent(test.java:29)
        at java.lang.reflect.VMReflection.invokeMethod(Native Method)
 FAILURES!!!
Tests run: 1,  Failures: 1,  Errors: 0
============== SUN 1.5 ===============
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode)
.java.lang.NullPointerException
        at java.util.Hashtable.get(Hashtable.java:336)
        at javax.swing.JLayeredPane.getLayer(JLayeredPane.java:369)
        at test.testGetLayerComponent(test.java:28)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at junit.framework.TestCase.runTest(TestCase.java:154)
        at junit.framework.TestCase.runBare(TestCase.java:127)
        at junit.framework.TestResult$1.protect(TestResult.java:106)
        at junit.framework.TestResult.runProtected(TestResult.java:124)
        at junit.framework.TestResult.run(TestResult.java:109)
        at junit.framework.TestCase.run(TestCase.java:118)
        at junit.framework.TestSuite.runTest(TestSuite.java:208)
        at junit.framework.TestSuite.run(TestSuite.java:203)
        at junit.textui.TestRunner.doRun(TestRunner.java:116)
        at junit.textui.TestRunner.start(TestRunner.java:172)
        at junit.textui.TestRunner.main(TestRunner.java:138)

Time: 0.422
OK (1 test)

 



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