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https://issues.apache.org/jira/browse/TAP5-1504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13087159#comment-13087159
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Robert Zeigler commented on TAP5-1504:
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So, on GAE, with your custom implementation of FileItemFactory, you don't need
the UploadSymbols.REPOSITORY_LOCATION, correct? As an alternative workaround,
why not supply the system property yourself? I haven't used GAE, really, so I
don't know if specifying -Dupload.repository-location=gae.dummy.location is
reasonable or not, but there should also be a point early enough in the IOC
registry bootstrapping process that would allow you to
System.setProperty(...,...). At least as a temporary workaround.
> on GAE Tapestry will crash on startup if tapestry-upload is on the classpath.
> -----------------------------------------------------------------------------
>
> Key: TAP5-1504
> URL: https://issues.apache.org/jira/browse/TAP5-1504
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-upload
> Affects Versions: 5.2.5
> Reporter: Alejandro Scandroli
> Attachments: TAP5-1504.patch
>
>
> I'm trying to deploy a tapestry project to GAE. Everything seems to work fine
> except for tapestry-upload. In fact the application will crash on startup if
> the tapestry-upload library is on the classpath, even when I contribute my
> own GAE compatible FileItemFactory.
> After a little bit of digging I found the offending line in UploadModule:
> configuration.add(UploadSymbols.REPOSITORY_LOCATION,
> System.getProperty("java.io.tmpdir"));
> This line will throw a NPE when System.getProperty("java.io.tmpdir") returns
> NULL. I couldn't find any quick workarounds without having to touch the
> UploadModule code, that's why I'm filing this issue.
> My naïve attempt to fix this is to use:
> String tmpdir = System.getProperty("java.io.tmpdir");
> if (tmpdir != null) configuration.add(UploadSymbols.REPOSITORY_LOCATION,
> tmpdir);
> But I don't know If I should consider other scenarios.
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