Believe me, in comparison to what Israel do, Poland is a champion at admitting historical faults and crimes of Polish nationals.
Other than an Israeli minister making a couple of imprecise and insensitive comments, Jerusalem has nothing to apologize for (and he should definitely review his words and apologize). Poland has suffered a great deal, something Israelis can emphasize with...a lot....and both have been hurt badly by the same two enemies (National Socialism and Communism). They are also both under assault by enemy Muslim immigrants or occupiers. Warsaw and Jerusalem also share some common interests that the two countries have begun to pursue (or were doing so, before the current verbal p*zzing match. I’m confident they will get back on track again, soon. The longstanding persecutions and murders by Poles of Jews are, alas, history, but most of today’s Polish and Jewish people are more interested in the present and future than in reliving the past. (And, Poland appears to be protecting itself from dangerous Muslim occupiers/infiltrators much, much better than the eternally-patient Israelis. Warsaw could teach Jerusalem a few pointers in this respect.)