How to Fix java.lang.NoSuchMethodError in Spring MVC After Servlet Library Update?

---
Disclaimer/Disclosure: Some of the content was synthetically produced using various Generative AI (artificial intelligence) tools; so, there may be inaccuracies or misleading information present in the video. Please consider this before relying on the content to make any decisions or take any actions etc. If you still have any concerns, please feel free to write them in a comment. Thank you.
---

Common Scenario

A particularly common scenario for this error in Spring MVC involves updating the servlet library. When you update one dependency, it can inadvertently cause compatibility issues with other dependencies that expect a previous version of the same library.

Example of the Error

[[See Video to Reveal this Text or Code Snippet]]

This error message indicates that Spring MVC is trying to call a method that the current version of the servlet library doesn't have.

Steps to Resolve the Issue

Check Dependency Versions

First, ensure that the versions of your dependencies are aligned. Spring MVC and other libraries are often sensitive to the specific versions of dependencies they interact with. Use the Maven dependency:tree or Gradle dependencies task to trace dependencies and their transitive dependencies.

Revert the Servlet Library Update

If you recently updated the servlet library, consider reverting to the previously functional version. This can immediately resolve the error if the method in question is present in that version.

[[See Video to Reveal this Text or Code Snippet]]

[[See Video to Reveal this Text or Code Snippet]]

Update All Related Dependencies

If reverting the version is not desirable:

Update all relevant dependencies like Spring MVC, Spring Core, and other dependencies that might rely on the servlet library.

Ensure that all dependencies are compatible with the updated version of the servlet library.

Clean and Rebuild the Project

After making changes, clean and rebuild your project to ensure that old compiled classes are not causing issues.

Maven:

[[See Video to Reveal this Text or Code Snippet]]

Gradle:

[[See Video to Reveal this Text or Code Snippet]]

Check Documentation and Release Notes

Consult the release notes and documentation of the servlet library and Spring MVC. They often provide insights into breaking changes and how to resolve compatibility issues.

Final Thoughts

Happy coding!