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From "Bill Barker" <wbar...@wilshire.com>
Subject Re: Bug in DateTool in tomcat connector util?
Date Wed, 18 Sep 2002 03:59:15 GMT
I just checked in a fix for the "format" side (setting the "Last-Modified"
header).  This one is much harder to hit, but that doesn't mean that you
can't.  The "parse" side (getting the "If-Modified-Since" header) has been
fixed in the nightly for quite some time now.

----- Original Message -----
From: "Hugh J. L." <hughjlee@yahoo.com>
To: "Tomcat Developers List" <tomcat-dev@jakarta.apache.org>
Sent: Tuesday, September 17, 2002 7:12 PM
Subject: Bug in DateTool in tomcat connector util?


> Hi,
>
> I found a bug (?) when i was testing tomcat3.3 using
> MS web stress tool. I set up large amount of
> concurrent requests for static files, each with header
> If-Modified-Since which is newer than actual
> last-modified-time of those requested files. I should
> have got 304 response for ALL requests in this case,
> however, i got many 304, a few 200, and even
> NumberFormatException occasionally. This didn't happen
> if i tested using only one client thread. I looked
> into java.text.SimpleDateFormat and suspected it was
> possibly a synchronization problem. Then I added
> synchronization control to DateTool.parse(String,
> DateFormat[]) as below and the problem was solved:
>
> synchronized(format[i]) {
> date = format[i].parse(dateString);
> }
>
>
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