src/main/java/de/javakaffee/kryoserializers/FieldAnnotationAwareSerializer.java
public boolean addAnnotation(final Class<? extends Annotation> clazz) {
        if (disregarding && marked.add(clazz)) {
            initializeCachedFields();
            return true;
        }
        return false;
    }
public boolean addAnnotation(final Class<? extends Annotation> clazz) {
        if (disregarding && marked.add(clazz)) {
            initializeCachedFields();
            return true;
        }
        return false;
    }
Adds an annotation to the annotations that are considered by this serializer.
<p/>
<b>Important</b>: This will not have an effect if the serializer was configured
to exclusively serialize annotated fields by setting {@code disregarding} to
{@code false}. This is similar to the contract of this serializer's superclass
{@link FieldSerializer} which does not allow to add fields that were formerly
removed. If this was possible, instances that were serialized before this field
was added could not longer be properly deserialized. In order to make this contract
break explicit, you need to create a new instance of this serializer if you want to
include new fields to a serializer that exclusively serializes annotated fields.

@param clazz The annotation class to be added.
@return {@code true} if the method call had an effect.