[jboss-jira] [JBoss JIRA] (WFCORE-210) IO error during deployment scanning triggers undeployment

[RH Bugzilla Integration (JIRA)]

     [ https://issues.jboss.org/browse/WFCORE-210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated WFCORE-210:
-------------------------------------------
        Bugzilla Update: Perform
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1159709


> IO error during deployment scanning triggers undeployment
> ---------------------------------------------------------
>
>                 Key: WFCORE-210
>                 URL: https://issues.jboss.org/browse/WFCORE-210
>             Project: WildFly Core
>          Issue Type: Bug
>          Components: Server
>    Affects Versions: 1.0.0.Alpha10
>            Reporter: James Livingston
>            Assignee: Jason Greene
>
> If an IO error such as reaching the file descriptor limit occurs during deployment scanning, the scanner continues with an empty deployment list causing it to undeploy applications.
> This occurs because FileSystemDeploymentService.scanDirectory() treats File.listFiles() returning null as an empty list rather than an error. http://docs.oracle.com/javase/7/docs/api/java/io/File.html#listFiles%28%29 notes that it returns an empty array if the directory is empty, and null if it is not a directory or an IO error occurs.
> It should instead respond to a null return value by aborting the scanner run, with a log message, and not proceed to undeploy applications.



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