Your code is incorrect.

'00:59:1638888888888890' should equal '00:59:59'

That means your code returned '00:59:1638888888888890', which is obviously incorrect. The number of seconds is 3599 in this case.

Please read carefully the documentation before raising issues: https://docs.codewars.com/training/troubleshooting/

In java , it doesn't work

it fails even when i've tested all possible cases in my IDE

The Java version available on CW doesn't support repeat method.

i've some problems, i don't why it doesn't run when my code in Eclipse works well

symbol: method repeat(int)
location: variable string of type String
1 error