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From "Aleksey Victorivich Yantsen (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1797) [classlib][swing] javax.swing.text.PlainDocument.removeUpdate(AbstractDocument.DefaultDocumentEvent chng) throws unspecified NullPointerException
Date Tue, 10 Oct 2006 06:57:20 GMT
[classlib][swing] javax.swing.text.PlainDocument.removeUpdate(AbstractDocument.DefaultDocumentEvent
chng) throws unspecified NullPointerException
-------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-1797
                 URL: http://issues.apache.org/jira/browse/HARMONY-1797
             Project: Harmony
          Issue Type: Bug
            Reporter: Aleksey Victorivich Yantsen
            Priority: Minor


Problem: javax.swing.text.PlainDocument.removeUpdate(AbstractDocument.DefaultDocumentEvent
chng) throws unspecified NullPointerException if no change where made to document before removeUpdate
is invoked.

Test to reproduce:
import junit.framework.TestCase;

import javax.swing.text.PlainDocument;
import javax.swing.text.AbstractDocument;
import javax.swing.text.html.HTMLDocument;
import javax.swing.event.DocumentEvent;

class MyPlainDocument extends PlainDocument {
	public void removeUpdate(AbstractDocument.DefaultDocumentEvent chng) {
		super.removeUpdate(chng);
	}
}

public class Test extends TestCase {

	public void testcase() {
		MyPlainDocument mpd = new MyPlainDocument();
		HTMLDocument localHTMLDocument = new HTMLDocument();
		AbstractDocument.DefaultDocumentEvent chng = localHTMLDocument.new DefaultDocumentEvent(
3, 13, DocumentEvent.EventType.INSERT);
		
		mpd.removeUpdate(chng); // no exception should be thrown
	}
}

Output on 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)
.
Time: 1.25

OK (1 test)

Output on Harmony: 
================== 
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r453981, (Oct  9 2006), Windows/ia32/msvc 1310, release build
http://incubator.apache.org/harmony
.E
Time: 0.812
There was 1 error:
1) testcase(Test)java.lang.NullPointerException
	at javax.swing.text.PlainDocument.removeUpdate(PlainDocument.java:155)
	at MyPlainDocument.removeUpdate(Test.java:10)
	at Test.testcase(Test.java:21)
	at java.lang.reflect.AccessibleObject.invokeV(AccessibleObject.java:25)

FAILURES!!!
Tests run: 1,  Failures: 0,  Errors: 1


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