private ArraytypesConfig createArraytypesConfig(String field, String [] values) {
        Slime slime = new Slime();
        Cursor root = slime.setObject();
        Cursor array = root.setArray(field);
        for (String value : values) {
            array.addString(value);
        }
        return new ConfigPayload(slime).toInstance(ArraytypesConfig.class, "");
    }
*******************************************************************************************
Helper methods. consider moving out to another class for reuse by merge tester.            *
********************************************************************************************
config/src/test/java/com/yahoo/vespa/config/ConfigPayloadTest.java