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https://issues.apache.org/jira/browse/LUCENE-4332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13444751#comment-13444751
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Uwe Schindler commented on LUCENE-4332:
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Sun/Oracle, IBM J9 and jRockit contain it. Only the FreeBSD one is missing it
because of Licensing reasons, but thats a well-known bug to be fixed soon (so
on ASF Jenkins its installed as separate package in JRE_PATH/lib/ext" or like
that).
The major drawback of the sjhipped javascript version is that it is trimmed
down and produces no bytecode out of Javascript, it interprets only. But that
is no issue here.
The Java 6 specs are a little bit unclear, but they say something like
(unfortunately you have to download as ZIP file): A "default" scripting
implementation is required to be shipped with any Java 6 JDK, but it is not
defined which one. Oracle officially says "javascript (Rhino) is shipped with
OpenJDK and JDK", so all other JVM vendors would be stupid to ship with another
default one. So, let's assume its there, otherwise you have a problem building
the release package of Lucene. It is similar to the case that JDK contains
implementations for XML processing, but the language spec only enforce the API
to be there and SPI to load them. Which XML processor is shipped depends on
developer, but there must be one.
Another (bloated) version of doing that is using ivy:cachepath to download and
add a classpathref= to the <script/> element, but then you will at some time
hit the stupid ANT permgen issue (if you have many <script/> elements).
> Integrate PiTest mutation coverage tool into build
> --------------------------------------------------
>
> Key: LUCENE-4332
> URL: https://issues.apache.org/jira/browse/LUCENE-4332
> Project: Lucene - Core
> Issue Type: Improvement
> Affects Versions: 4.1, 5.0
> Reporter: Greg Bowyer
> Assignee: Greg Bowyer
> Labels: build
> Attachments:
> LUCENE-4332-Integrate-PiTest-mutation-coverage-tool-into-build.patch,
> LUCENE-4332-Integrate-PiTest-mutation-coverage-tool-into-build.patch,
> LUCENE-4332-Integrate-PiTest-mutation-coverage-tool-into-build.patch
>
>
> As discussed briefly on the mailing list, this patch is an attempt to
> integrate the PiTest mutation coverage tool into the lucene build
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