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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2333) Failures during contrib builds, when classes in core were changed without ant clean
Date Fri, 19 Mar 2010 10:25:27 GMT
Failures during contrib builds, when classes in core were changed without ant clean
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                 Key: LUCENE-2333
                 URL: https://issues.apache.org/jira/browse/LUCENE-2333
             Project: Lucene - Java
          Issue Type: Bug
          Components: Build
            Reporter: Uwe Schindler
            Assignee: Uwe Schindler
             Fix For: 3.1


>From java-dev by Shai Erera:

{quote}
I've noticed that sometimes, after I run test-core and test-contrib, and then change core
code, test-contrib fail on NoSuchMethodError and stuff like that. I've noticed that core.jar
exists under build, and I assumed it's used by test-contrib, and probably is not recreated
after core code has changed.

I verified it when looking in contrib-build.xml, which defines a property lucene.jar.present
which is set to true if the jar is ... well, present. Which I believe is the reason for these
failures. I've been thinking how to resolve that, and I can think of two ways:

(1) have test-core always delete that file, but that has two issues:
(1.1) It's redundant if the code hasn't changed.
(1.2) It forces you to either jar-core or test-core before you test-contrib, if you want to
make sure you run w/ the latest jar.

or

(2) have test-contrib always call jar-core, which will first delete the file and then re-create
it by compiling first. Compiling should not do anything if the code hasn't changed. So the
only waste would be to create the .jar, but I think that's quite fast?

Does anyone, with more Ant skills than me, know of a better way to detect from test-contrib
that core code has changed and only then rebuild the jar?
{quote}

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