Annotation Interface Override

@Target(METHOD) @Retention(SOURCE) public @interface Override

Indicates that a method declaration is intended to override a method declaration in a supertype. If a method is annotated with this annotation type compilers are required to generate an error message unless at least one of the following conditions hold:

The method does override or implement a method declared in a supertype.
The method has a signature that is override-equivalent to that of any public method declared in Object.

See Java Language Specification:: 8.4.8 Inheritance, Overriding, and Hiding
9.4.1 Inheritance and Overriding
9.6.4.4 @Override
Since:: 1.5

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https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Override.html