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From "Ilya Okomin (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1753) [classlib][swing] javax.swing.text.GapContent.shiftEnd() throws unspecified ArrayIndexOutOfBoundsException
Date Fri, 06 Oct 2006 12:41:19 GMT
[classlib][swing] javax.swing.text.GapContent.shiftEnd() throws unspecified ArrayIndexOutOfBoundsException

-----------------------------------------------------------------------------------------------------------

                 Key: HARMONY-1753
                 URL: http://issues.apache.org/jira/browse/HARMONY-1753
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: Ilya Okomin
            Priority: Minor


Harmony throws unspecified ArrayIndexOutOfBoundsException for javax.swing.text.GapContent.remove(-1)
 while RI works silently.

---------------test.java----------------
import javax.swing.text.GapContent;

import junit.framework.TestCase;

public class test extends TestCase {

    public static void main(String[] args) {
        junit.textui.TestRunner.run(test.class);
    }

    public void testRun() throws Exception {
        GC localGapContent = new GC();
        localGapContent.testShifEnd(-1);
    }

    class GC extends GapContent {
        public GC() {
            super();
        }
        
        public int testShifEnd(int sh) {
            super.shiftEnd(sh);
            return 1;
        }
    }
}
--------------------------------------------

====== Output RI ======

.
Time: 0.04

OK (1 test)

====== Output Harmony ======

.E
Time: 0.02
There was 1 error:
1) testRun(bugzilla.Test9308.test)java.lang.ArrayIndexOutOfBoundsException: bad arrayCopy
	at java.lang.VMMemoryManager.arrayCopy(Native Method)
	at java.lang.System.arraycopy(Unknown Source)
	at javax.swing.text.GapContent.shiftEnd(GapContent.java:279)
	at bugzilla.Test9308.test$GC.testShifEnd(test.java:25)
	at bugzilla.Test9308.test.testRun(test.java:14)
	at java.lang.reflect.VMReflection.invokeMethod(Native Method)
	at bugzilla.Test9308.test.main(test.java:10)

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

I've investigated this issue. Harmony and RI behaves differently only for size == -1. If the
size value less than -1 both Harmony and RI throws 
java.lang.NegativeArraySizeException.

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