Using the 2.7.5 or 2.9.1 versions of the SDK, the SecurityLabel throws the following exception since there isn't a "color" field defined in the class when it's deserialized:
Exception in thread "main" java.lang.RuntimeException: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "color" (class com.threatconnect.sdk.server.entity.SecurityLabel), not marked as ignorable (3 known properties: "dateAdded", "name", "description"])