NetBeans Keeps Its Internet Proxy in General Options

For NetBeans’ own Internet access, open Tools → Options → General. Select the manual HTTP proxy option, enter the hostname and port separately, and apply the changes.

For http://proxy.example:8080, enter proxy.example as the host and 8080 as the port. For permitted public update-center access, the HTTP proxy list provides candidate host and port values.

The panel also offers direct access and system proxy settings. Choose the intended mode; entering a host while “No Proxy” remains active does not enable the manual route.

This controls IDE requests such as update-center access. For a failure in the Java application launched by NetBeans, inspect that application’s JVM or HTTP-client settings.