[Patch] RequestProcessor swallows exceptions in blocks case
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Key: COCOON-1954
URL: http://issues.apache.org/jira/browse/COCOON-1954
Project: Cocoon
Issue Type: Bug
Components: * Cocoon Core, - Blocks Framework
Affects Versions: 2.2-dev (Current SVN)
Reporter: Alexander Klimetschek
Attachments:
cocoon-request-processor-swallows-exceptions-for-blocks.patch
While updating to the latest Cocoon I stepped into the problem that you cannot
see the exceptions thrown in a BlockServlet called by another one, since the
new refactored RequestProcessor swallows all exceptions. The generated error
page is fed into the response output stream which is eventually read by
anything in the calling pipeline, which mostly cannot handle that html error
page (in my case it gets some xml) and will throw another exception like
SAXParseException.
This patch adds a boolean rethrowExceptions() method to the RequestProcessor
that is used inside service() to check whether a catched exception should be
rethrown. The standard return value is false, in the subclass
o.a.c.sitemap.SitemapServlet$RequestProcessor it returns true so that the
exception is passed on to the "root" sitemap (handling the servletrequest that
actually comes from a browser or so) which will eventually create the error
page.
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