Here is what is going on. Whenever I create a servlet on my laptop in NetBeans and deploy it locally, the servlet works perfectly. However, when I deploy the very same WAR file to my server (Apache Tomcat/6.0.36) over the network via the Manager app, I will always get this error. Whenever I attempt to access any .html or .jsp files included in the servlet, they work fine. However, whenever I attempt to access any of the servlets (the .class files), I always get this error. I am not using a web.xml, so I do not believe this can be the issue. I have hot deployed locally through NetBeans and also locally through the Manager app, and they both work. It only seems to be when I try to deploy this WAR through the Manager app to a different system.
Thanks for taking the time to read. Have a great day. :-)