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https://issues.apache.org/jira/browse/LUCENE-4332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13444718#comment-13444718
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Greg Bowyer commented on LUCENE-4332:
-------------------------------------
{quote}
Greg, what's this responsible for:
{code}
+ <property name="pitest.threads" value="2" />
Is this test execution concurrency at JVM level? If so, it needs to be set to
"1" because tests won't support concurrent suites (too many static stuff lying
around).
{code}
{quote}
Its a number of runner vms used by pitest (I think) so in essence it should
spawn two vms to run test through (but let me check I might have that wrong)
{quote}
{code}
+ <!-- Java7 has a new bytecode verifier that _requires_ stackmaps to be
present in the
+ bytecode. Unfortunately a *lot* of bytecode manipulation tools
(including pitest)
+ do not currently write out this information; for now we are
forced to disable this
+ in the jvm args -->
{code}
Both proguard and asmlib produce these I think. Just a note, I know it's
probably not possible to integrate in pi's toolchain without changes to its
source code.
{quote}
Humm weird I thought I had problems with the verifier but now that I just tried
it, it worked - Guess I will be taking that out then
{quote}
Will this require people to put rhino in ant's lib/ folder? If so, I'd just use
an ugly property value="-D..=${} -D..=${}..". Yours is very nice but an
additional step is required which seems an overkill?
{quote}
Might do, depends on the JVM vendor / version - I will change it to the ugly
> 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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