public static boolean isSecondBucket(long timeBucket) {
        return timeBucket < 99999999999999L && timeBucket > 10000000000000L;
    }
The format of timeBucket in minute Unit is "yyyyMMddHHmmss", so which means the TimeBucket must be between
10000000000000 and 99999999999999.
test/e2e-v2/java-test-service/e2e-mock-baseline-server/src/main/java/org/apache/skywalking/e2e/TimeBucket.java