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Posted to issues@commons.apache.org by "Marcono1234 (Jira)" <ji...@apache.org> on 2021/02/03 03:02:00 UTC
[jira] [Updated] (IO-714) ReaderInputStream does not call
CharsetEncoder.flush(...)
[ https://issues.apache.org/jira/browse/IO-714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcono1234 updated IO-714:
---------------------------
Component/s: Streams/Writers
> ReaderInputStream does not call CharsetEncoder.flush(...)
> ---------------------------------------------------------
>
> Key: IO-714
> URL: https://issues.apache.org/jira/browse/IO-714
> Project: Commons IO
> Issue Type: Bug
> Components: Streams/Writers
> Affects Versions: 2.8.0
> Reporter: Marcono1234
> Priority: Major
>
> As defined by the {{CharsetEncoder}} [documentation|https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/nio/charset/CharsetEncoder.html] the _encoding operation_ consists of:
> # (reset)
> # encode
> # flush
> However, {{org.apache.commons.io.input.ReaderInputStream}} does not call {{flush}}. This leads to incorrect results for charsets whose {{flush}} method appends additional bytes.
> Example:
> {code}
> // Charset whose CharsetEncoder.flush(...) puts bytes
> Charset charset = Charset.forName("Cp930");
> // \u0391: Causes CharsetEncoder.flush(...) to put additional bytes
> String s = "\u0391";
> byte[] expected = s.getBytes(charset);
> byte[] actual;
> try (InputStream in = new ReaderInputStream(new StringReader(s), charset)) {
> actual = IOUtils.toByteArray(in);
> }
> if (!Arrays.equals(expected, actual)) {
> throw new AssertionError("\n Expected: " + Arrays.toString(expected) + "\n Actual: " + Arrays.toString(actual));
> }
> {code}
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