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https://issues.apache.org/jira/browse/CXF-6228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14303234#comment-14303234
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Papp István Péter commented on CXF-6228:
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Yes, I can confirm that using the new snapshot version, the temporary files
created during the call are deleted immediately afterwards. No custom code or
interceptor is necessary. Thank you very much for your assistance. :)
> Using XSLTFeature with large messages creates unremovable temporary files
> -------------------------------------------------------------------------
>
> Key: CXF-6228
> URL: https://issues.apache.org/jira/browse/CXF-6228
> Project: CXF
> Issue Type: Bug
> Affects Versions: 3.0.3
> Reporter: Papp István Péter
> Assignee: Akitoshi Yoshida
> Priority: Minor
> Attachments: bug6228reproduction.zip
>
>
> Using the XSLT transformation feature causes the outgoing message to use a
> CachedOutputStream object. If the size of the message is above the configured
> threshold, a temporary file will be created to store the message on the disk;
> however, this file is not deleted after the message is sent.
> Based on info available on similar problems encountered with
> CachedOutputStream and attachments, I tried using an interceptor in the
> SETUP_ENDING phase to close the stream manually - this, however, did not work
> because even after closing the stream, the "streamList" variable was not
> empty, which resulted in the closing logic skipping file deletion in the
> "maybeDeleteTempFile" method. Attempts to delete the file directly also fail
> for obvious reasons.
> Some (sometimes all, not sure what makes the difference) of the temporary
> files are removed during a clean server shutdown, but since this is a rare
> event in production environments, it does not really solve the problem.
> (Actually, the issue was discovered when the temp files filled the disk
> completely on a production server.)
> The only viable workaround I found so far was to set the CachedOutputStream
> threshold high enough to avoid caching the data to disk altogether.
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