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https://jira.codehaus.org/browse/MCHECKSTYLE-244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Pokrovsky updated MCHECKSTYLE-244:
---------------------------------------------
Description:
*LicenseResouceManager* component does not specify instantiation strategy. By
default plexus uses singleton strategey which leads to
*ConcurrentModificationException* in parallel maven builds.
Example: when two *DefaultCheckstyleExecutors* try to use one licence manager:
one calls *addSearchPath* on *FileResourceLoader* while the other one iterating
over paths in *getResource* on the same *FileResourceLoader* .
[MCHECKSTYLE-238|https://jira.codehaus.org/browse/MCHECKSTYLE-238] and
[MCHECKSTYLE-230|https://jira.codehaus.org/browse/MCHECKSTYLE-230] are exactly
about this situation. Right now the plugin for some reason is marked as thread
safe although it produces exceptions in paralled multimodule builds.
*DefaultCheckstyleRssGenerator* also is a point of attention becaue it is also
singleton instantiated.
was:
*LicenseResouceManager* component does not specify instantiation strategy. By
default plexus uses singleton strategey which leads to
*ConcurrentModificationException* in parallel maven builds. Example: when two
*DefaultCheckstyleExecutors* try to use one licence manager: one calls
*addSearchPath* on *FileResourceLoader* while the other one iterating over
paths in *getResource* on the same *FileResourceLoader* .
[MCHECKSTYLE-238|https://jira.codehaus.org/browse/MCHECKSTYLE-238] and
[MCHECKSTYLE-230|https://jira.codehaus.org/browse/MCHECKSTYLE-230] are exactly
about this situation. Right now the plugin for some reason is marked as thread
safe although it produces exceptions in paralled multimodule builds.
*DefaultCheckstyleRssGenerator* also is a point of attention becaue it is also
singleton instantiated.
> LicenseResourceManager component is not thread safe and causes parallel build
> failures
> --------------------------------------------------------------------------------------
>
> Key: MCHECKSTYLE-244
> URL: https://jira.codehaus.org/browse/MCHECKSTYLE-244
> Project: Maven Checkstyle Plugin
> Issue Type: Bug
> Affects Versions: 2.12, 2.12.1
> Reporter: Konstantin Pokrovsky
>
> *LicenseResouceManager* component does not specify instantiation strategy. By
> default plexus uses singleton strategey which leads to
> *ConcurrentModificationException* in parallel maven builds.
> Example: when two *DefaultCheckstyleExecutors* try to use one licence
> manager: one calls *addSearchPath* on *FileResourceLoader* while the other
> one iterating over paths in *getResource* on the same *FileResourceLoader* .
> [MCHECKSTYLE-238|https://jira.codehaus.org/browse/MCHECKSTYLE-238] and
> [MCHECKSTYLE-230|https://jira.codehaus.org/browse/MCHECKSTYLE-230] are
> exactly about this situation. Right now the plugin for some reason is marked
> as thread safe although it produces exceptions in paralled multimodule builds.
> *DefaultCheckstyleRssGenerator* also is a point of attention becaue it is
> also singleton instantiated.
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