Papp István Péter created CXF-6228:
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Summary: 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
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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