Earlier quoted context omitted.
In what way is Java a "dynamic language" ?
I think "dynamic platform" would be more accurate. Java has typically been a fairly conservative language sat on a much more interesting VM, a VM which has rather more features in common with dynamic languages like Smalltalk than you'd expect.
So even though java the language isnt dynamic, you can do a lot more at runtime, than with these new-fangled languages like Go and Rust.