MapReduceHelloWorld does not execute

[MSaifAsif]

Describe the bug
MapReduceHelloWorld does not execute and throws an exception

To Reproduce
Steps to reproduce the behavior:

1. checkout
2. cd into directory
3. run Main class
4. See error

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
	at com.sample.client.ClientRunner.run(ClientRunner.java:29)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
	at com.sample.client.ClientRunner.main(ClientRunner.java:18)

Expected behavior
A word count from the EMR