Hey, better ask codewars team, though I've heard they abandoned this project, lol. Have a nice day!

To all who experience issues while submitting your code. Make sure provided test examples work for you locally first. Each given test example should work. My problem was that it worked for me with some test example, I tried to submit the code, but it failed with some other test example. Then I checked each available test example locally and it finally worked for me when submitting. My hint looks obviously, but I still believe some users are too fast to submit the code (as I am).

getting error:
expected:<not[test]> but was:<not[aes]>

where can I see input parameters values for this sample test?

@jhoffner any idea what is the reason of 500 error when trying to submit Java code?

So... passed all tests in Java, still error 500 when trying to submit my code. Why?

If you don't add "\n" to the last line but still can't pass sample tests, then trim each line so that you get rid of extra spaces. Helped me to pass sample tests.

Time: 5005ms Passed: 1 Failed: 0
Test Results:
Build Output
Test Suite
stripComments(StripCommentsTest)
Completed in 9ms
You have passed all of the tests! :)

Time: 0ms
Server Execution Error:
exec_failure
Request Error:
Request failed with status code 500

This error was caused due to an issue processing the web request, not because of an issue executing your code. You can retry the request.

Java in my case. Tests passed, but can't upload final result.

I just fixed it and passed all sample tests (though can't upload my code finally because of 500 error so far).
So, just check if it is the last line and if yes then don't add "\n" to your results.

Did anyone find a way to override "status code 500" error?