Buffering of response does not work correctly in SSF
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Key: COCOON-2237
URL: https://issues.apache.org/jira/browse/COCOON-2237
Project: Cocoon
Issue Type: Bug
Components: - Servlet service framework
Affects Versions: 2.2
Reporter: Grzegorz Kossakowski
Assignee: Grzegorz Kossakowski
Fix For: 2.2
Class HttpServletResponseBufferingWrapper contains subtle bug when it comes to
buffering of response. It relies its behaviour on HTTP status code and buffers
only if it was set to 404.
However, in following scenario current implementation won't work:
1. stream = response.getOutputStream() //non buffering output stream is
returned because by default status code is set to 200
2. response.setStatusCode(404)
3. stream.write() //write details about error, this is going to be written to
response because non-buffering output stream is in use
4. response.resetBufferedResponse() //this fails with IllegalStateException
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