[ https://jira.codehaus.org/browse/MCHECKSTYLE-244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
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 definetly produces exceptions in parallel 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 definetly 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 definetly produces exceptions in parallel multimodule builds.
> *DefaultCheckstyleRssGenerator* also is a point of attention becaue it is also singleton
instantiated.
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