| The presence of an unused variable may indicate a bug. This check highlights |
| _private_ fields and parameters which are unused and can be safely removed |
| without considering the impact on other source files. |
| |
| ## Suppression |
| |
| False positives on fields and parameters can be suppressed by prefixing the |
| variable name with `unused`, e.g.: |
| |
| ```java |
| private static void authenticate(User user, Application unusedApplication) { |
| checkState(user.isAuthenticated()); |
| } |
| ``` |
| |
| All false positives can be suppressed by annotating the variable with |
| `@SuppressWarnings("unused")`. |
