Python and Ruby both would fit the bill perfectly for all those use cases for me.

The cryptography module in Python is awesome. lxml and sud deals with XML and Soap in a blink.

Modeling large business concept is a joy with dataclasses, and the language will never be the perf bottleneck.

Now I understand that if you are experienced with Java, it would solve all those problems perfectly.

But again, I would not, personally, gain anything by using it for this.