Improve japanese bank branch validation

[ripcurlx]

Fixes #5688

[wiz]

The diff is so big I have no idea what you actually changed...

[wiz]

I think you should probably only change the bottom part of the file where the regex patterns actually changed, otherwise you're rewriting the entire code

[ripcurlx]

I think you should probably only change the bottom part of the file where the regex patterns actually changed, otherwise you're rewriting the entire code

Did you look at the commits 😉. I've put the formatting fixes in a separate commit and the other two changes in two further commits. So it is easy to see what actually changed.

[Liisachan]

What's significant is the 2nd commit c781394. It's so simple, no regression seems possible. The 3rd commit 4d62136 is even more trivial, like just improving comments.

The 1st commit 851ef07 is less transparent, but after hiding whitespace changes, I see there are only 2 actual edits:

1. import java.util.HashMap; and import bisq.core.locale.Country; deleted.
2. new ArrayList<String>(); -> new ArrayList<>();

I guess 1 is simply unused "include"s, and 2 is something like auto in C++? Idk, a real Java programmer can review this.

[sqrrm]

The formatting and style changes are good. I cannot tell if the regex changes are good but from @wiz and @Liisachan they sound correct.

[sqrrm]

utACK