Run specific Junit unit test on Maven

How to run specific test within Maven mvn 

1. Click on the module Run... button
2. Add your own argument : for ex, instead of clean deploy , write
    test  -Dtest=**PeriodicFlow*Test#simpleChatAndCheckChatExposureLatencyAndMCS  -DfailIfNoTests=false
   
   This argument stands for 
   For running the Java Test file PeriodicFlow (like PeriodicFlowAlphaTest , PeriodicFlowColoTest etc ) 
   and will run only this test method simpleChatAndCheckChatExposureLatencyAndMCS
3. you can also run an entire file / package etc ...