HERE Technologies Sr. Software Engineer interview questions

I got a call from Naurki regarding a Scala Developer job opportunity at their Bangalore Office. I was interested in the proposition and enquired about the interview process. The first round was a coding assignment to be completed over the weekend and submitted. I completed all the questions as the requirements stated and made sure all the tests were passing before submitting. However I got a rejection mail saying my tests were not correct for the "Java problem" and my "github" profile did not have any tests for any projects I had uploaded. I mean, you are hiring me for a Scala developer role and you reject me based on a Junit test being wrong (and I dont know which one as that was not mentioned) and you check my Github projects for JUnit tests? Really? I enjoyed solving those Scala problems and I knew damn well that I can clear the round. This rejection was a shocker. I don't know who reviewed this assignment but whoever it is, he/she clearly has no idea on what their hiring grounds are. Pathetic experience to say the least. At least be honest about your reason of rejection. No sane developer would reject someone the way you guys did.