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https://issues.apache.org/jira/browse/VFS-490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary Gregory updated VFS-490:
-----------------------------

    Attachment: VFS-490.diff

Patches FileTypeMap as suggested but also shows more problems with using a 
folder with ".jar" in the name, see subdir4.jar.
                
> [vfsclassloader] tries to open folders with .zip or .jar extension
> ------------------------------------------------------------------
>
>                 Key: VFS-490
>                 URL: https://issues.apache.org/jira/browse/VFS-490
>             Project: Commons VFS
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Bernd Eckenfels
>         Attachments: VFS-490.diff
>
>
> When adding folders with a name ending in {{.zip}} or {{.jar}} to the 
> {{VFSClassLoader}} will fail to load resources from this search path. 
> It tries to open it as a layered filesystem. This can be fixed in the 
> classloader by checking that the file type has content, but most likely it is 
> a more generic bug in {{canCreateFileSystem()}} which does not do this 
> distinction.
> The following is a quick fixed version (it also inlines the Resource class)
> https://github.com/ecki/seeburger-vfs2/blob/master/vfs2provider-jdbctable/src/main/java/com/seeburger/vfs2/util/VFSClassLoader.java#L152

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