Master Java Servlet Inheritance with IntelliJ IDEA Diagrams

1. View Inheritance Chain Diagram

Right‑click the class tab in IDEA, choose Diagrams → Show (embedded) or Show … Popup (floating). The same option is available from the project tree.

The resulting diagram displays inheritance (blue solid arrows) and interface implementation (green dashed arrows).

2. Optimize the Diagram

2.1 Remove Unwanted Classes

Select any class you don’t need and press the Delete key. After cleaning, the diagram shows only the relevant Servlet hierarchy.

2.2 Show Class Details

Right‑click a class and select Show Categories to expand attributes, methods, constructors, etc. You can also use the toolbar for the same action.

To filter methods by visibility, choose Change Visibility Level from the context menu.

2.3 Add Other Classes to the Diagram

Right‑click the diagram background, select Add Class to Diagram , and type the class name to include it.

2.4 Jump to Source Code

Double‑click a class, then right‑click a method and choose Jump to Source to open its implementation. Use the Structure view to navigate quickly between members.

The Structure pane lists all methods; clicking an entry scrolls the editor to that method.

3. Conclusion

Using IntelliJ IDEA’s diagram and navigation features makes exploring servlet inheritance, inspecting class members, and reading source code fast and intuitive, greatly simplifying the study of framework internals.