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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 25373] - Timestamp on generated .java and .class should match the one on .jsp
Date Tue, 02 Mar 2004 18:06:47 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=25373

Timestamp on generated .java and .class should match the one on .jsp





------- Additional Comments From mariuss@lightspeed.ca  2004-03-02 18:06 -------
The simple fact that workaround solutions are suggested is the best proof that
this is a bug (without double quotes around it).

If I have to precompile the JSP pages or selectively touch some of them then the
server is broken, it is not doing what it is supposed to do: recompile pages
that are out of sync.

I am not so sure that the timestamp on .class files should indicate the time
when they were generated. As this bug shows it may be better to use the same
time as on the corresponding .jsp fil. Here is a parallel with a revision system
like CVS. The timestamp of the files in my sandbox are not set to the time when
they were checked out (created locally) but to the time when the corresponding
file in the repository was last changed. This is the only way CVS can properly
track what changed in my sandbox. This is very similar to our case. The sandbox
file is the .class file and the repository file is the .jsp.

The performance impact should be minimal and the benefit is fixing a bug which
can create really obscure problems. This special timestamping should be done
every time a page is compiled. Compared to the time needed to compile the page
the time needed to set a timestamp is negligible (I doubt you can even detect
it). Also this is one time deal, once compiled you don't need to timestamp
anymore, so I would ignore the whole performance issue.

The fact that recompilation of JSP pages should be done in development
environments only is questionable. The fact that there is a bug remains. This
bug can easily surface in development as well if periodically you deploy to an
internal development or testing server.

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