I am trying to setup apache tomcat in Netbeans IDE 9. I have tried following steps, but could not setup. In the Tools->Servers, I clicked on the Add server button. Following message displayed. So, I tried to install plugins from the Tools->Plugins, a dialog box is displayed but when I try to update plugins list it is not able to connect. In effect NB IDE tries to connect to non-existant page. So, I am effectively not able to succeed in installing Apache Tomcat server. I am also using NB 8.2 and everything works fine. Any Help will be appreciated. I am using Windows 10 Prof with JDK 10. Thanks