How to run and debug Intellij plugin

I've inherited and Intellij plugin that generate code for Android project

It stopped working with Android Studio Bumblebee so I want to debug and fix it.

However, there seems to be no "Plugin" type for run configuration

And when I chose generic application, there is no main class to run

Do I need Intellij Ultimate or something?

plugins.xml

<idea-plugin>
    <id>com.coffeemeetsbagel.android_kotlin_component_plugin</id>
    <name>Android Kotlin Component Generation</name>
    <description>RIB code generation</description>
    <idea-version>2020.2.4</idea-version>

    <depends>com.intellij.modules.lang</depends>
    <depends>com.intellij.modules.java</depends>

    <depends>org.jetbrains.android</depends>

    <actions>
        <action id="generate_component" class="com.myapp.component_generation.GenerateComponent"
                text="Generate Kotlin Component"
                description="Generates components">
            <add-to-group group-id="NewGroup" anchor="last"/>
        </action>
    </actions>
</idea-plugin>

GenerateComponent.java

public class GenerateComponent extends AnAction {

  @Override
  public void actionPerformed(AnActionEvent e) {
    PsiDirectory directory = (PsiDirectory) e.getDataContext().getData(LangDataKeys.PSI_ELEMENT);
    Project project = e.getDataContext().getData(LangDataKeys.PROJECT);
    GenerateComponentDialog dialog = new GenerateComponentDialog(directory, project);
    dialog.pack();
    dialog.setLocationRelativeTo(null);
    dialog.setVisible(true);
  }

  @Override
  public void update(AnActionEvent e) {
    PsiElement psiElement = e.getDataContext().getData(LangDataKeys.PSI_ELEMENT);

    if (psiElement instanceof PsiDirectory) {
      e.getPresentation().setVisible(true);
      e.getPresentation().setEnabled(true);
      return;
    }

    e.getPresentation().setVisible(false);
    e.getPresentation().setEnabled(false);
  }
}

GenerateComponentDialog seems to be just Java Swing GUI

I can share the plugin full source code upon request

But it's loosely based on https://github.com/uber/RIBs/tree/master/android/tooling/rib-intellij-plugin