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From "Vladimir Strigun (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-52) java.io.ByteArrayOutputStream.toString(String) throws IllegalCharsetNameException instead of UnsupportedEncodingException
Date Fri, 27 Jan 2006 10:53:42 GMT
    [ http://issues.apache.org/jira/browse/HARMONY-52?page=comments#action_12364201 ] 

Vladimir Strigun commented on HARMONY-52:
-----------------------------------------

Ive found small testcase for the issue:
    public static void main(String[] args) throws Exception{
        byte[] arr = {'a', 'b', 'c'};
        new String(arr, 0, 2, "some charset");
    }

The behaviour of this test is the same as original. But charset name "some charset" is illegal
because only following letters are allowed in charset names:
"
The uppercase letters 'A' through 'Z' ('\u0041' through '\u005a'), 
The lowercase letters 'a' through 'z' ('\u0061' through '\u007a'), 
The digits '0' through '9' ('\u0030' through '\u0039'), 
The dash character '-' ('\u002d', HYPHEN-MINUS), 
The period character '.' ('\u002e', FULL STOP), 
The colon character ':' ('\u003a', COLON), and 
The underscore character '_' ('\u005f', LOW LINE). 
"

So, if we pass to String(byte[], int, int, String) constructor  illegal charset name, it should
anyway throws UnsupportedEncodingException, not IllegalCharsetNameException .

> java.io.ByteArrayOutputStream.toString(String) throws IllegalCharsetNameException instead
of UnsupportedEncodingException
> -------------------------------------------------------------------------------------------------------------------------
>
>          Key: HARMONY-52
>          URL: http://issues.apache.org/jira/browse/HARMONY-52
>      Project: Harmony
>         Type: Bug
>   Components: Classlib
>     Reporter: Vladimir Ivanov

>
> java.io.ByteArrayOutputStream.toString(String) throws IllegalCharsetNameException instead
of UnsupportedEncodingException 
> j2se 1.4.2 and 1.5.0 says, that method java.io.ByteArrayOutputStream.toString(String)
>  throws UnsupportedEncodingException, if the named encoding is not supported.
> Code to reproduce:
> import java.io.*; 
>   
> public class test29 { 
>     public static void main(String[] args)  {
> 	ByteArrayOutputStream os = new ByteArrayOutputStream(); 
>         try { 
> 	    os.write("ababa".getBytes()); 
>             os.toString("this is the name \n of a nonexistent encoding" 
>                     + Math.random()); 
>         } catch(UnsupportedEncodingException e) { 
>             System.out.println("PASSED"); 
>         } catch(Exception e) { 
>             System.out.println("FAILED: " + e); 
>         } 
>    } 
> }  
> Steps to Reproduce: 
> 1. Build Harmony (check-out on 2006-01-25) j2se subset as described in README.txt. 
> 2. Compile test29.java using BEA 1.4 javac 
> > javac -d . test29.java 
> 3. Run java using compatible VM (J9) 
> > java -showversion test29
> Output:
> C:\tmp\tmp17>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test29
> 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\tmp17>C:\harmony\trunk\deploy\jre\bin\java -showversion test29
> java version 1.4.2 (subset)
> (c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as app
> licable.
> FAILED: java.nio.charset.IllegalCharsetNameException: The illegal charset name i
> s "this is the name
>  of a nonexistent encoding0.4487506282752648".
> C:\tmp\tmp17>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test29
> 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\tmp17>
> junit test:
> ------------------------ ByteArrayOutputStreamTest.java -------------------------------------------------
> import java.io.*; 
> import junit.framework.*; 
>   
> public class ByteArrayOutputStreamTest extends TestCase { 
>     public static void main(String[] args) { 
>         junit.textui.TestRunner.run(ByteArrayOutputStreamTest.class); 
>     } 
>     public void testToString_String() { 
> 	ByteArrayOutputStream os = new ByteArrayOutputStream(); 
>         try { 
> 	    os.write("ababa".getBytes()); 
>             os.toString("this is the name \n of a nonexistent encoding" 
>                     + Math.random()); 
>         } catch(UnsupportedEncodingException e) { 
>         } catch(Exception e) { 
>             fail("Unexpected exception: " + e); 
>         } 
>     }
> } 

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