A modern programming language that makes developers happier.

kotlinlang

```
❯❯❯ spark-submit --class "com.rocketmiles.ttl.job.HotelTtlAggregationJob" --master local[4] ./build/libs/hss-spark.jar
java.lang.ClassNotFoundException: com.rocketmiles.ttl.job.HotelTtlAggregationJob
       	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
       	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
       	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
       	at java.lang.Class.forName0(Native Method)
       	at java.lang.Class.forName(Class.java:348)
       	at org.apache.spark.util.Utils$.classForName(Utils.scala:229)
       	at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:700)
       	at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:187)
       	at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:212)
       	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:126)
       	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
```