#vulnerable code 
                                public static <T> T service(Class<T> clazz, String group, String version) {
        return me().getRpc().serviceObtain(clazz, group, version);
    } 
                            #location 2 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                public static <T> T service(Class<T> clazz, String group, String version) {
        return jboot.getRpc().serviceObtain(clazz, group, version);
    }