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https://issues.apache.org/jira/browse/TAP5-2364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14082314#comment-14082314
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Jonathan Williams commented on TAP5-2364:
-----------------------------------------
Caused by: java.lang.RuntimeException: Exception invoking method public void
org.apache.tapestry5.internal.webresources.ResourceTransformerFactoryImpl.createCacheDir():
access denied ("java.io.FilePermission" "images/tapestry-asset-cache" "write")
at
org.apache.tapestry5.ioc.internal.util.InternalUtils$26$1.initialize(InternalUtils.java:1691)
at
org.apache.tapestry5.ioc.internal.util.ConstructionPlan$1.run(ConstructionPlan.java:80)
at
org.apache.tapestry5.ioc.internal.OperationTrackerImpl.run(OperationTrackerImpl.java:56)
... 216 more
Caused by: java.security.AccessControlException: access denied
("java.io.FilePermission" "images/tapestry-asset-cache" "write")
at
java.security.AccessControlContext.checkPermission(AccessControlContext.java:375)
at
java.security.AccessController.checkPermission(AccessController.java:565)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.checkWrite(SecurityManager.java:979)
at java.io.File.mkdir(File.java:1314)
at java.io.File.mkdirs(File.java:1343)
at
org.apache.tapestry5.internal.webresources.ResourceTransformerFactoryImpl.createCacheDir(ResourceTransformerFactoryImpl.java:65)
> beta15 breaks Google App Engine & other Production environments
> ---------------------------------------------------------------
>
> 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
>
> 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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