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From "Olivier Lamy (JIRA)" <>
Subject [jira] (MCOMPILER-170) Regression: Compiler Plugin fails when building with multiple threads (-T...)
Date Mon, 07 May 2012 13:20:02 GMT


Olivier Lamy commented on MCOMPILER-170:

great thanks.
> Regression: Compiler Plugin fails when building with multiple threads (-T...)
> -----------------------------------------------------------------------------
>                 Key: MCOMPILER-170
>                 URL:
>             Project: Maven 2.x Compiler Plugin
>          Issue Type: Bug
>    Affects Versions: 2.4
>         Environment: Windows 7 x64, JDK 1.6.0_31, Maven 3.0.4
>            Reporter: Falko Modler
>            Assignee: Olivier Lamy
>            Priority: Critical
>             Fix For: 2.5
> I just tried building my current project which is rather large and has many sub-modules.
> With version 2.3.2 (and below) of the plugin I was able to build the whole project with
multiple threads, let's say:
> {{mvn clean compile -T4}}
> Version 2.4 fails with random errors when using this command line!
> Errors include missing closing brackets, "cannot find symbol" and so on. It's also not
always the same module where the errors occur.
> A single-threaded build with:
> {{mvn clean compile}}
> *completes just fine*!
> Unfortunately I cannot upload my project for copyright reasons.
> So for me it looks like a "classic" concurrency problem. Maybe side effect of MCOMPILER-166?

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