Ctx( ): 400 R( /) null - details about this error?

[Goebel Martin]

Okay,
now I've found out that this 
Ctx(  ): 400 R( /) null
means my Browser sent a "bad request" to Tomcat.
Is there any possibility to find out some more details
about this bad request?
My problem was that the problem only occured when
sending a request from a Linux client to a WinNT4.0
Tomcat machine, a request from a WinNT client
worked without problems.

Thanks,
Martin