Intellij IDEA doesn't grey out some unused methods

Question

In intellij IDEA, if a method is unused, the method is shown in a gray color. But in some cases, IDEA doesn\'t grey out the method, but when I check the references of those

Answer 1

I used to have it working like charm, but one time, I by mistake clicked on alt+Enter on an unused method, and chose to suppress the inspection on unused code. Ever since then, I stopped getting the grayed out methods and code, so since there is a way to get it undone, there sure must be a way to get it back working.

After 5 minutes of searching, I found a solution:

Settings --> Editor --> Inspections --> Java --> Declaration Redundancy --> Unused Declaration

Make sure you check "Unused Declaration"

And I just checked by creating a new useless method, working like a charm.