ok, but i still don't understand this error :(

Thank you for your advice, input is [, yxvm, zzozybj, booifcbcs, w{niq, {{vizzwid]
expected: <[]yxvm, zzozybj, booif...>
but was: <[, ]yxvm, zzozybj, booif...>

In that case, the SampleTest would not execute
but i completed all the tasks and no problem with this tests
In randomTest i can show you only the stack trace and expected and actual outputs)

Thanks for your reply, for example:
expected:<...ba, lsfq, wpfq, bz, [iayrl, za], onga, etpxcjcn, fv...> but was:<...ba, lsfq, wpfq, bz, [, iayrl, za, ], onga, etpxcjcn, fv...>
And also, i noticed some more: (expected and actual outputs)
[] -> [, ]
[etikvlog{, exro], -> [, etikvlog{, exro, ],
[] -> [ and ]

The Java kata still is not working, because randomTests work very strange with some symbols
Below there are mentions of this from the other people