Considering our history, yes, I could see that Poles might not want to laugh about Jews. My gmail username is the same as my HN username, I personally would love to hear a Polish Jewish joke and promise not to take offense or think that it represents your personal viewpoint.
A German once told me a German Jewish joke. How do you get 100 Jews into a Kafer (VW Beetle)? Im Aschenbecher.
I'm still yet to hear Arab jokes about Jews, even though I live with and am friendly with Arabs. I know they probably have some good ones.