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From "Howard M. Lewis Ship (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (TAP5-2364) Tapestry can use prohibited operations in some environments, such as Google App Engine
Date Fri, 01 Aug 2014 15:46:39 GMT

     [ https://issues.apache.org/jira/browse/TAP5-2364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Howard M. Lewis Ship closed TAP5-2364.
--------------------------------------

       Resolution: Fixed
    Fix Version/s: 5.4

> Tapestry can use prohibited operations in some environments, such as Google App Engine
> --------------------------------------------------------------------------------------
>
>                 Key: TAP5-2364
>                 URL: https://issues.apache.org/jira/browse/TAP5-2364
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-webresources
>    Affects Versions: 5.4
>            Reporter: Jonathan Williams
>            Assignee: Howard M. Lewis Ship
>             Fix For: 5.4
>
>
> beta15 breaks GAE & some other prod environments
> I have a couple of app engine apps that are broken w/ beta15
> This is due to use of java.io.File to mkdir, which is prohibited on app engine and is
more generally considered a JEE no-no.
> ...
> ResourceTransformerFactoryImpl creates a File for the asset cache directory.
> This breaks my app in GAE, since creating a new File is prohibited.
> ...
> it looks like the cache is only used in development
> mode but still references File in production (thus breaking GAE). Perhaps a
> proper fix will involve a pluggable cache which does nothing in production
> mode.
> As a workaround you can override the ResourceTransformerFactory via ioc
> with an implementation that doesn't reference java.io.File. Most likely a
> copy/paste/tweak of the current version.
> ...
> Note, this could also break non GAE environments since it calls mkdirs() on
> @Symbol(WebResourcesSymbols.CACHE_DIR). For example a unix server without
> write permission.



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