| AutoValue classes reject `null` values, unless the property is annotated with |
| `@Nullable`. For this reason, the usage of boxed primitives (e.g. `Long`) is |
| discouraged, except when annotated as `@Nullable`. Otherwise they can be |
| replaced with the corresponding primitive. There could be some cases where the |
| usage of a boxed primitive might be intentional to avoid boxing the value again |
| after invoking the getter. |
| |
| ## Suppression |
| |
| Suppress violations by using `@SuppressWarnings("AutoValueBoxedValues")` on the |
| relevant `abstract` getter and/or setter. |
