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https://issues.apache.org/jira/browse/LUCENE-2630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-2630:
--------------------------------

    Attachment: LUCENE-2630_intl.patch

here's a patch for the internationalization differences, since harmony uses ICU.
* the collator gives different order for Locale.US, though 
its wierd we test the order of non-US characters under US Locale (its not 
defined and inherited from root locale)
I conditionalized this test as such:
{code}
  // the sort order of Ø versus U depends on the version of the rules being used
  // for the inherited root locale: Ø's order isnt specified in Locale.US since 
  // its not used in english.
  private boolean oStrokeFirst = Collator.getInstance(new 
Locale("")).compare("Ø", "U") < 0;
{code}
* the thai dictionary-based break iterator gives different results: I used text 
that both impls segment the same way.


> make the build more friendly to apache harmony
> ----------------------------------------------
>
>                 Key: LUCENE-2630
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2630
>             Project: Lucene - Java
>          Issue Type: Task
>          Components: Build, Tests
>    Affects Versions: 4.0
>            Reporter: Robert Muir
>         Attachments: LUCENE-2630.patch, LUCENE-2630.patch, LUCENE-2630.patch, 
> LUCENE-2630_charutils.patch, LUCENE-2630_intl.patch
>
>
> as part of improved testing, i thought it would be a good idea to make the 
> build (ant test) more friendly
> to working under apache harmony.
> i'm not suggesting we de-optimize code for sun jvms or anything crazy like 
> that, only use it as a tool.
> for example:
> * bugs in tests/code: for example i found a test that expected ArrayIOOBE 
>   when really the javadoc contract for the method is just IOOBE... it just 
> happens to
>   pass always on sun jvm because thats the implementation it always throws.
> * better reproduction of bugs: for example [2 months out of the 
> year|http://en.wikipedia.org/wiki/Unusual_software_bug#Phase_of_the_Moon_bug]
>   it seems TestQueryParser fails with thai locale in a difficult-to-reproduce 
> way.
>   but i *always* get similar failures like this with harmony for this test 
> class.
> * better stability and portability: we should try (if reasonable) to avoid 
> depending
>   upon internal details. the same kinds of things that fail in harmony might 
> suddenly
>   fail in a future sun jdk. because its such a different impl, it brings out 
> a lot of interesting stuff.
> at the moment there are currently a lot of failures, I think a lot might be 
> caused by this: http://permalink.gmane.org/gmane.comp.java.harmony.devel/39484

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