com.android.annotations
Annotation Type Nullable

@Documented
@Retention(value=CLASS)
@Target(value={METHOD,PARAMETER,LOCAL_VARIABLE,FIELD})
public @interface Nullable

Denotes that a parameter, field or method return value can be null. Note: this is the default assumption for most Java APIs and the default assumption made by most static code checking tools, so usually you don't need to use this annotation; its primary use is to override a default wider annotation like NonNullByDefault.

When decorating a method call parameter, this denotes the parameter can legitimately be null and the method will gracefully deal with it. Typically used on optional parameters.

When decorating a method, this denotes the method might legitimately return null.

This is a marker annotation and it has no specific attributes.