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Date: Sat, 4 Mar 2006 18:48:03 +0100 (CET)
From: "Svetlana Samoilenko (JIRA)" <jira@apache.org>
To: harmony-dev@incubator.apache.org
Subject: [jira] Commented: (HARMONY-98) java.util.BitSet.clear(int
 toIndex,int fromIndex) throws unexpected IndexOutOfBoundsException when
 toIndex=fromIndex
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    [ http://issues.apache.org/jira/browse/HARMONY-98?page=comments#action_12368879 ] 

Svetlana Samoilenko commented on HARMONY-98:
--------------------------------------------

Tim, thanks, 
all works fine with with latest sources.

> java.util.BitSet.clear(int toIndex,int fromIndex) throws unexpected IndexOutOfBoundsException when toIndex=fromIndex
> --------------------------------------------------------------------------------------------------------------------
>
>          Key: HARMONY-98
>          URL: http://issues.apache.org/jira/browse/HARMONY-98
>      Project: Harmony
>         Type: Bug
>   Components: Classlib
>     Reporter: Svetlana Samoilenko
>     Assignee: Tim Ellison
>  Attachments: fix.txt, fix_hrm-98.txt
>
> According to 1.4.2 and 1.5 specification java.util.BitSet.clear(int,int) throws IndexOutOfBoundsException - if fromIndex is negative, or toIndex is negative, or fromIndex is larger than toIndex.
> Harmony throws IndexOutOfBoundsException if toIndex=fromIndex.
> Code to reproduce: 
> import java.util.BitSet; 
> public class test2 { 
>     public static void main(String[] args) { 
>         BitSet set = new BitSet(); 
>         for(int i=0; i < 20; i++) { 
>             set.set(i); 
>         } 
>        set.clear(10,10); 
>     } 
> }
> Steps to Reproduce: 
> 1. Build Harmony (check-out on 2006-01-30) j2se subset as described in README.txt. 
> 2. Compile test2.java using BEA 1.4 javac 
> > javac -d . test2.java 
> 3. Run java using compatible VM (J9) 
> > java -showversion test2
> Output: 
> C:\tmp>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2 
> java version "1.4.2_04" 
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05) 
> BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel) 
> PASSED
> C:\tmp>C:\harmony\trunk\deploy\jre\bin\java -showversion test2 
> (c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as applicable. 
> java.lang.IndexOutOfBoundsException: Negative index specified
>         at java.util.BitSet.clear(BitSet.java:423)
>         at test2.main(test2.java:16)
> Suggested fix in attachment.
> Suggested junit test case:
> ------------------------ BitSetTest.java ------------------------------------------------- 
> import junit.framework.*; 
> import java.util.BitSet; 
> public class BitSetTest extends TestCase { 
>     public static void main(String[] args) { 
>         junit.textui.TestRunner.run(BitSetTest.class); 
>     } 
>     public void test_clear() { 
>        BitSet set = new BitSet(); 
>        for(int i=0; i < 20; i++) { 
>            set.set(i); 
>        } 
>        set.clear(10,10); 
>     } 
> }

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