@JsonCreator
    public static AuditEventType create(@JsonProperty(FIELD_NAMESPACE) String namespace,
                                        @JsonProperty(FIELD_OBJECT) String object,
                                        @JsonProperty(FIELD_ACTION) String action) {
        return new AutoValue_AuditEventType(namespace, object, action);
    }
@Test
    public void testInvalid1() throws Exception {
        expectedException.expect(IllegalArgumentException.class);
        AuditEventType.create("foo");
    }