The answer is in the Ninja Framework source code, and the new versions of a Jetty… and therefore, there is (probably) no answer without recompiling the whole framework to fix the issue. I have tried diff-ing the projects, but could not see anything that would fix the higher versions. Up until the version 6.4.0 (inclusive) running the command mvn jetty:run starts the server. Any other version that is higher than 6.4.0 just builds the project and then stops.

So, one of the solutions is to simply start a new project using the old-version code executing:

mvn archetype:generate -DarchetypeGroupId=org.ninjaframework -DarchetypeArtifactId=ninja-servlet-archetype-simple -DarchetypeVersion=6.4.0

Another solution is to deploy (Jetty or Tomcat server) and try to debug the deployed jar/war file.

The first solution is simpler, however, the second one is more proper.

At the time of writing, the latest version is


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