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Posted to dev@harmony.apache.org by "Tim Ellison (JIRA)" <ji...@apache.org> on 2006/02/14 15:05:10 UTC
[jira] Resolved: (HARMONY-67)
java.nio.charset.Charset.decode(ByteBuffer) throws unexpected
BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
[ http://issues.apache.org/jira/browse/HARMONY-67?page=all ]
Tim Ellison resolved HARMONY-67:
--------------------------------
Resolution: Fixed
Svetlana,
Fixed in NIO_CHAR module java.nio.charset.CharsetDecoder at repo revision 377729.
Please check that this fully resolves your problem.
> java.nio.charset.Charset.decode(ByteBuffer) throws unexpected BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: HARMONY-67
> URL: http://issues.apache.org/jira/browse/HARMONY-67
> Project: Harmony
> Type: Bug
> Components: Classlib
> Reporter: Svetlana Samoilenko
> Assignee: Tim Ellison
>
> According to j2se 1.4.2 specification for Charset.decode(ByteBuffer b) the method must not throw any exceptions.
> The test listed below shows that there is unexpected BufferOverflowException thrown if charset name is one in the following: UTF-16BE, UTF-16LE, UTF-16.
> BEA does not throw any exceptions.
> Code to reproduce:
> import java.nio.charset.Charset;
> import java.nio.ByteBuffer;
> import java.nio.CharBuffer;
> public class test2 {
> public static void main(String[] args) throws Exception {
> byte[] b = new byte[] {(byte)1};
> ByteBuffer buf= ByteBuffer.wrap(b);
> CharBuffer charbuf=Charset.forName("UTF-16").decode(buf);
> System.out.println("CharBuffer.length()="+ charbuf.length());
> }
> }
> 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)
> CharBuffer.length()=0
> 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.nio.BufferOverflowException
> at java.nio.CharBuffer.put(CharBuffer.java:662)
> at java.nio.CharBuffer.put(CharBuffer.java:629)
> at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:406)
> at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:243)
> at java.nio.charset.Charset.decode(Charset.java:630)
> at test2.main(test2.java:8)
> Suggested junit test case:
> ------------------------ CharsetTest.java -------------------------------------------------
> import java.nio.charset.Charset;
> import java.nio.ByteBuffer;
> import java.nio.CharBuffer;
> import junit.framework.*;
> public class CharsetTest extends TestCase {
> public static void main(String[] args) {
> junit.textui.TestRunner.run(CharsetTest.class);
> }
> public void test_decode() {
> byte[] b = new byte[] {(byte)1};
> ByteBuffer buf= ByteBuffer.wrap(b);
> CharBuffer charbuf=Charset.forName("UTF-16").decode(buf);
> assertEquals("Assert 0: charset UTF-16",0,charbuf.length());
>
> charbuf=Charset.forName("UTF-16BE").decode(buf);
> assertEquals("Assert 1: charset UTF-16BE",0, charbuf.length());
>
> charbuf=Charset.forName("UTF-16LE").decode(buf);
> assertEquals("Assert 2: charset UTF16LE",0, charbuf.length());
>
> }
> }
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