After installing the parameterized remote trigger plugin and restarting Jenkins, I did the following:

-Go to Jenkins > Configuration
-Scroll to Parameterized Remote Trigger Configuration section
-Click the Add button
-Enter a valid remote Jenkins instance (hosted within our local intranet) in remote address and port
-Enter a valid display name
-Click the Validate Address button and verify the address is ok
-Click the Add button
-Click the Apply button in the Config

The expected result is that the configuration for the parameterized remote trigger plugin is updated and works well.

The actual result is that the config is not saved and an javax.servlet.ServletException: java.lang.NullPointerException is thrown (see attached stack trace).

This occurs if I try to click Apply or Save in the config settings.