[jira] (MCHECKSTYLE-230) ConcurrentModificationException in FileResourceLoader.getResource

["Herve Boutemy (JIRA)" <ji...@codehaus.org>]

     [ https://jira.codehaus.org/browse/MCHECKSTYLE-230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Herve Boutemy updated MCHECKSTYLE-230:
--------------------------------------

    Fix Version/s: 2.13

> ConcurrentModificationException in FileResourceLoader.getResource
> -----------------------------------------------------------------
>
>                 Key: MCHECKSTYLE-230
>                 URL: https://jira.codehaus.org/browse/MCHECKSTYLE-230
>             Project: Maven Checkstyle Plugin
>          Issue Type: Bug
>    Affects Versions: 2.12.1
>            Reporter: Andrew Gaul
>             Fix For: 2.13
>
>
> I encountered a ConcurrentModificationException when running:
> {noformat}
> mvn checkstyle:checkstyle -e -T 4
> {noformat}
> against the jclouds code base:
> {noformat}
> [ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.12.1:checkstyle (default-cli) on project ultradns-ws: Execution default-cli of goal org.apache.maven.plugins:maven-checkstyle-plugin:2.12.1:checkstyle failed. ConcurrentModificationException -> [Help 1]
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.12.1:checkstyle (default-cli) on project ultradns-ws: Execution default-cli of goal org.apache.maven.plugins:maven-checkstyle-plugin:2.12.1:checkstyle failed.
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
>         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
>         at org.apache.maven.lifecycle.internal.LifecycleThreadedBuilder$1.call(LifecycleThreadedBuilder.java:169)
>         at org.apache.maven.lifecycle.internal.LifecycleThreadedBuilder$1.call(LifecycleThreadedBuilder.java:165)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
>         at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.apache.maven.plugins:maven-checkstyle-plugin:2.12.1:checkstyle failed.  
>         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:115)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
>         ... 11 more
> Caused by: java.util.ConcurrentModificationException
>         at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
>         at java.util.ArrayList$Itr.next(ArrayList.java:831)
>         at org.codehaus.plexus.resource.loader.FileResourceLoader.getResource(FileResourceLoader.java:56)
>         at org.apache.maven.plugin.checkstyle.resource.LicenseResourceManager.getResource(LicenseResourceManager.java:70)
>         at org.codehaus.plexus.resource.DefaultResourceManager.getResourceAsFile(DefaultResourceManager.java:91)
>         at org.apache.maven.plugin.checkstyle.DefaultCheckstyleExecutor.getOverridingProperties(DefaultCheckstyleExecutor.java:460)
>         at org.apache.maven.plugin.checkstyle.DefaultCheckstyleExecutor.getConfiguration(DefaultCheckstyleExecutor.java:299)
>         at org.apache.maven.plugin.checkstyle.DefaultCheckstyleExecutor.executeCheckstyle(DefaultCheckstyleExecutor.java:185)
>         at org.apache.maven.plugin.checkstyle.AbstractCheckstyleReport.executeReport(AbstractCheckstyleReport.java:488)
>         at org.apache.maven.plugin.checkstyle.CheckstyleReport.executeReport(CheckstyleReport.java:156)
>         at org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:196)
>         at org.apache.maven.reporting.AbstractMavenReport.execute(AbstractMavenReport.java:104)
>         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:106)
>         ... 12 more
> {noformat}
> The underlying problem appears to be within plexus resources and I have opened an issue and submitted a possible fix:
> http://jira.codehaus.org/browse/PLXCOMP-237



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