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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