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From "Tim Ellison (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-4196) [classlib][luni] InputStreamReader can't handle UnicodeBig encoding
Date Thu, 14 May 2009 16:54:46 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-4196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709466#action_12709466
] 

Tim Ellison commented on HARMONY-4196:
--------------------------------------

I think that option (2) above is a better solution, but it depends which charset provider
we are talking about.

For the built-in provider it should be sufficient to add:

Index: src/main/java/org/apache/harmony/niochar/CharsetProviderImpl.java
===================================================================
--- src/main/java/org/apache/harmony/niochar/CharsetProviderImpl.java	(revision 774723)
+++ src/main/java/org/apache/harmony/niochar/CharsetProviderImpl.java	(working copy)
@@ -320,7 +320,9 @@
                                   
             { "UTF_16",      null,new String[] { "UTF-16",
                                                  "UTF16",
-                                                 "UTF_16" } },
+                                                 "UTF_16",
+                                                 "UnicodeLittle",
+                                                 "UnicodeBig" } },
                               
             { "UTF_16LE",    null,new String[] { "UTF-16LE",
                                                  "X-UTF-16LE",


But I'd have to look a bit closer to see what it takes to add an alias to ICU providers.


> [classlib][luni] InputStreamReader can't handle UnicodeBig encoding
> -------------------------------------------------------------------
>
>                 Key: HARMONY-4196
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4196
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Vasily Zakharov
>            Assignee: Alexei Zakharov
>            Priority: Minor
>         Attachments: Harmony-4196-InputStreamReader_diagnostics.patch, HARMONY-4196.diff
>
>
> Consider the following simple test:
> import java.io.*;
> public class Test {
>     public static void main(String[] args) {
>         try {
>             new InputStreamReader(new ByteArrayInputStream(new byte[] {(byte) 0xFE, (byte)
0xFF}), "UnicodeBig");
>             System.out.println("SUCCESS");
>         } catch (Throwable e) {
>             System.out.println("FAIL:");
>             e.printStackTrace(System.out);
>         }
>     }
> }
> Output on RI:
> SUCCESS
> Output on Harmony (both DRL VM and IBM VM):
> FAIL:
> java.io.UnsupportedEncodingException
>         at java.io.InputStreamReader.<init>(InputStreamReader.java:104)
>         at Test.main(Test.java:6)
> Additional investigation shows that the cause for this exception is:
> java.nio.charset.UnsupportedCharsetException: The unsupported charset name is "UnicodeBig".
>         at java.nio.charset.Charset.forName(Charset.java:564)
>         at java.io.InputStreamReader.<init>(InputStreamReader.java:99)
>         at Test.main(Test.java:5)
> Interesting point is, the direct call to Charset.forName("UnicodeBig") causes the same
exception on RI also.
> So it seems the problem is not in Charset but in InputStreamReader itself.

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