Manually edit Glassfish Server Path settings

I added several JARs to my GlassFish server path and now the GlassFish Admin Console won't come up. It says "HTTP Status 404 - Servlet FacesServlet is not available". I think something I added is causing a JAR conflict with the admin tool. I would like to remove the stuff I added to the path, but I can't use the GlassFish admin tool to do it.

Can someone tell me how to manually edit the开发者_如何学编程 GlassFish server path values? Are they stored in a XML file somewhere? I looked around a little and couldn't find them.

I found the problem JAR (xercesImpl.jar). If I simply rename that JAR, then the GlassFish Admin Console comes up with no problem. Apparently GlassFish uses a different version and there was a conflict.