final File configFile = getFile(OverviewMapAttributeTest.class, "overviewmap_attributes/config-yaml.yaml");
final Configuration config = configurationFactory.getConfig(configFile);
final Template template = config.getTemplate("main");
final PJsonObject pJsonObject = parseJSONObjectFromFile(OverviewMapAttributeTest.class, "overviewmap_attributes/requestData-yaml.json");
final Values values = new Values(pJsonObject, template, new MapfishParser(), getTaskDirectory(), this.httpRequestFactory, new File("."));
final MapAttribute.MapAttributeValues mapValue = values.getObject("mapDef", MapAttribute.MapAttributeValues.class);
final OverviewMapAttribute.OverviewMapAttributeValues overviewMapValue =
values.getObject("overviewMapDef", OverviewMapAttribute.OverviewMapAttributeValues.class);
final MapAttribute.OverriddenMapAttributeValues value = mapValue.getWithOverrides(overviewMapValue);