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From "tatyana doubtsova (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-62) java.text.BreakIterator.getSentenceInstance().next() treats '\n' as the end of the sentence
Date Wed, 01 Feb 2006 05:13:32 GMT
java.text.BreakIterator.getSentenceInstance().next() treats '\n' as the end of the sentence

         Key: HARMONY-62
         URL: http://issues.apache.org/jira/browse/HARMONY-62
     Project: Harmony
        Type: Bug
  Components: Classlib  
    Reporter: tatyana doubtsova

Problem details:
java.text.BreakIterator.getSentenceInstance().next() stops searching for the sentence end,
if the new-line character is found in the text and returns the index of the last seen non
white space character. Due to j2se 1.4.2 method next() should return the boundary following
the current boundary.

Code for reproducing Test.java:
import java.text.BreakIterator;
public class Test {
    public static void main(String [] args)
    	BreakIterator it = BreakIterator.getSentenceInstance();
    	it.setText("One sentence \n on two lines.");

Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in README.txt.
2. Compile Test.java using BEA 1.4 javac
> javac -d . Test.java
3. Run java using compatible VM (J9)
> java -showversion Test

java version 1.4.2 (subset)
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as applicable.

Output on BEA 1.4.2 to compare with:

Suggested junit test case:

package org.apache.harmony.tests.java.text;

import java.text.BreakIterator;
import java.util.Locale;

import junit.framework.TestCase;

public class BreakIteratorTest extends TestCase {

	public void test_next() {
		// Regression test for HARMONY-30
		BreakIterator bi = BreakIterator.getWordInstance(Locale.US);
		bi.setText("This is the test, WordInstance");
		int n = bi.first();
		n = bi.next();
		assertEquals("Assert 0: next() returns incorrect value ", 4, n); 

		// Regression test for the current issue
	   	bi = BreakIterator.getSentenceInstance();
    		bi.setText("One sentence \n on two lines.");
		n = bi.next();
		assertEquals("Assert 1: next() returns incorrect value ", 28, n);

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