Gson: Exclude specific fields from Serialization, Android

//Annotation:

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface Exclude {
}

//Strategy:

public class AnnotationExclusionStrategy implements ExclusionStrategy {

    @Override
    public boolean shouldSkipField(FieldAttributes f) {
        return f.getAnnotation(Exclude.class) != null;
    }

    @Override
    public boolean shouldSkipClass(Class<?> clazz) {
        return false;
    }
}

//Usage:

new GsonBuilder().setExclusionStrategies(new AnnotationExclusionStrategy()).create();