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• UnusedMethod.md

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errorprone.bugpattern.UnusedMethod.md Maven / Gradle / Ivy

The presence of an unused method may indicate a bug. This check highlights
_private_ methods which are unused and can be safely removed without considering
the impact on other source files.

## Suppression

Methods and fields which are used by reflection can be annotated with `@Keep` to
suppress the warning.

This annotation can also be applied to annotations, to suppress the warning for
any member annotated with that annotation:

```java
import com.google.errorprone.annotations.Keep;

@Keep
@Retention(RetentionPolicy.RUNTIME)
@interface Field {}

...

public class Data {
  @Field private int a; // no warning.
  ...
}
```

All false positives can be suppressed by annotating the method with
`@SuppressWarnings("unused")` or prefixing its name with `unused`.