Problems with jdk1.4 and Windows

[Francisco José Arnau Vives]

I wanted to update my tomcat server based on jdk1.3  and tomcat 4 to jdk1.4
over windows server and I'm having many problems with many servlets. however
this servlets run in a correct way on linux server with jdk1.4. Do you know
what is the reason? I have tested with several versions of tomcat but always
return me fails (the examples of apache tomcat too fails to me) with the jdk
1.4.