[jira] Commented: (HARMONY-610) java.util.regex.Matcher.matches() fails when the default region is changed

["Nikolay Kuznetsov (JIRA)" <ji...@apache.org>]

    [ http://issues.apache.org/jira/browse/HARMONY-610?page=comments#action_12417275 ] 

Nikolay Kuznetsov commented on HARMONY-610:
-------------------------------------------

Tests look good,  assertNotNull(pattern) check is a bit questionable, because Pattern.compile will rather throw exception then return null, but this check is still valid :).


> java.util.regex.Matcher.matches() fails when the default region is changed
> --------------------------------------------------------------------------
>
>          Key: HARMONY-610
>          URL: http://issues.apache.org/jira/browse/HARMONY-610
>      Project: Harmony
>         Type: Bug

>   Components: Classlib
>     Reporter: Richard Liang
>     Assignee: Tim Ellison
>  Attachments: CORRECTED_string_boundaries.patch, regex.src.diff, string_boundaries.patch, string_boundaries.patch
>
> Hello,
> As the spec says, the method of matches () is used to match the entire region against the given pattern.
> But if the default region is changed, this method fails when it attempts to match the specified region against the given pattern.
> RI 5.0 passes the following test, but Harmony fails.
>     public void test_matches() {
>         String input = " word ";
>         Pattern pattern = Pattern.compile("\\w+");
>         Matcher matcher = pattern.matcher(input);
>         matcher.region(1, 5);
>         assertTrue(matcher.matches());
>     }

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