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From Papp István Péter (JIRA) <>
Subject [jira] [Created] (CXF-6228) Using XSLTFeature with large messages creates unremovable temporary files
Date Thu, 29 Jan 2015 14:40:34 GMT
Papp István Péter created CXF-6228:

             Summary: Using XSLTFeature with large messages creates unremovable temporary
                 Key: CXF-6228
             Project: CXF
          Issue Type: Bug
    Affects Versions: 3.0.3
            Reporter: Papp István Péter
            Priority: Minor

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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