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From "Kris M (JIRA)" <>
Subject [jira] [Comment Edited] (GROOVY-7407) Compilation not thread safe if Grape / Ivy is used in Groovy scripts
Date Tue, 29 May 2018 14:55:00 GMT


Kris M edited comment on GROOVY-7407 at 5/29/18 2:54 PM:

[] []

I have also seen this in our jenkins pipelines

was (Author: krismulica):

> Compilation not thread safe if Grape / Ivy is used in Groovy scripts
> --------------------------------------------------------------------
>                 Key: GROOVY-7407
>                 URL:
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler, Grape
>    Affects Versions: 2.4.3
>         Environment: Essentially independent of the environment, as long as Groovy scripts
use Grape; also this bug seems to be present since at least Groovy 1.7.5.
>            Reporter: Jex Jexler
>            Priority: Minor
>              Labels: Compile, Grape, Groovy, Ivy
>         Attachments: GROOVY-7407-Jenkins-Pipeline.txt,,,,, stacktrace-GrapeAndGroovyShellConcurrencyTest-1.txt,
stacktrace-GrapeAndGroovyShellConcurrencyTest-2.txt, stacktrace-GroovyCompileConcurrencyTest-1.txt,
> If Groovy scripts that import the same libraries via Grape are compiled in separate threads,
compilation may fail due to race conditions.
> This does not happen if several threads use the *same* instance of GroovyClassLoader
(GCL), because parseClass() uses synchronization.
> But as soon as different GCLs are used in separate threads or if the compiler is used
directly (CompilationUnit.compile()), the issue occurs and compilation can fail.
> Two Java unit tests have be attached, which reproduce the issue, although this cannot
be guaranteed with 100% certainty, because there is a race condition.
> Two different stacktraces have been observed for each unit test (with origins in Grape
and in Ivy), which have also been attached (plus in a different environment (Tomcat webapp
CentOS) once a an exception down in Ivy had been observed that seemed to be related to unzipping
a JAR file, but no precise record of that exists any more).

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