Konstantin / Chris,

In reply to Chris' question, the server is deployed as a service layer that exposes web services. Only SOAP requests are processed in the server. There are also few JSP files which are used by Nagios to monitor these servers. After having a look at the bug description that Konstantin mentioned, I believe upgrading tomcat to the latest version might resolve this issue.

Thanks a lot for your pointers.

Regards,
Janeve George

Konstantin Kolinko wrote:

1. Tomcat 4.0.3 is pretty old and unsupported. The last version in the
4.x series is 4.1.36.

2. Trying to google "checkHead site:mail-archives.apache.org" shows
some mentions of similar issues in the year 2002, e.g.

(note: The bugzilla server name has changed, but bug ids are the same)

http://issues.apache.org/bugzilla/show_bug.cgi?id=10331

Citing from there:
"Your extra code does not matter -- your code is still violating the
servlet spec
restrictions on accessing the response object from one thread in another thread.
Your expectation that this is ever going to work is incorrect."

http://issues.apache.org/bugzilla/show_bug.cgi?id=8039

Citing from there:
"This problem has already been fixed in 4.0.4 Beta."

It looks like nobody has observed this problem in the last 5 years,
thus it has been fixed.

You need to upgrade to get rid of the issue.

Good luck.

Best regards,
- Konstantin

2007/10/29, Christopher Schultz <[EMAIL PROTECTED]>:
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Janeve,

Also, is it possible to sniff the HTTP request that is causing this
exception? I'm wondering if you're dealing with a client that is sending
a broken HTTP request.

- -chris

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