[jira] [Created] (LANG-917) Exception when combining custom and choice format in ExtendedMessageFormat

["Arne Burmeister (JIRA)" <ji...@apache.org>]

Arne Burmeister created LANG-917:
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             Summary: Exception when combining custom and choice format in ExtendedMessageFormat
                 Key: LANG-917
                 URL: https://issues.apache.org/jira/browse/LANG-917
             Project: Commons Lang
          Issue Type: Bug
          Components: lang.text.*
    Affects Versions: 2.6, 2.5
            Reporter: Arne Burmeister


When using a custom format registered and a choice format with an inner format is used in the same message format, an IndexOutOfBoundsException occurs in the custructor of ExtendedMessageFormat:

{code:java}new ExtendedMessageFormat("Hi {0,test,any}, got {1,choice,0#none|1#one|1<{1,number}}", Collections.singletonMap("test", new TestFormatFactory()));{code}

{noformat}
java.lang.IndexOutOfBoundsException: Index: 2, Size: 2
	at java.util.ArrayList.rangeCheck(ArrayList.java:604)
	at java.util.ArrayList.get(ArrayList.java:382)
	at org.apache.commons.lang.text.ExtendedMessageFormat.insertFormats(ExtendedMessageFormat.java:364)
	at org.apache.commons.lang.text.ExtendedMessageFormat.applyPattern(ExtendedMessageFormat.java:192)
	at org.apache.commons.lang.text.ExtendedMessageFormat.<init>(ExtendedMessageFormat.java:127)
{noformat}

The problem occurs at the start of {{\{1,number\}}}.

As a workaround i registered the {{TestFormatFactory}} also for "choice" and then returning {{new ChoiceFormat(arguments)}}, but that is not the idea.

I also checked the change logs, but there seems no change on this problem. I have not tester, but I think the bug still is present in the current release.


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