[rowls66]

Here is an example. Go let’s structs be passed by value or by reference. The programmer needs to decide, and that adds complexity that is largely irrelevant for modeling complex business logic. Java does not provide a choice, which keeps it simple.

[Cthulhu_]

Simple, but with an inherent performance issue and GC load; note also that Java's Valhalla project adds value types with more stack based semantics, so there too you as a developer get a choice.