[nightpool]

I agree with you that the root problem is that the library author's design over-uses exception. But when the library in question is the standard library and the operation is as basic as Integer.parseInt, then I think it's fair to criticize that as a language issue, because the standard library sets the standard for what is idiomatic + performant for a language.

[kerblang]

There is nothing wrong with Integer.parseInt(). It blows up if you give it invalid input. That's standard idiomatic behavior.

It might be helpful to have Integer.validateInt(String), but currently it's up to author to do that themselves.