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Why should compiler optimize obviously dumb code? If developer wants to create billions of heap objects, compiler should respect him. Optimizing dumb code is wh

• carlmr 7mo ago
  The problem is rather that Java doesn't have generics and structs, so you're kind of forced to box things or can't use collections.
  • vbezhenar 7mo ago
    No, in the example they provided, programmer wrote obviously stupid code. It has nothing to do with necessity: Long sum = 0L; for (Long value : values) { sum += value; } I also want to highlight that there are plenty of collections utilizing primitive types. They're not generic but they do the job, so if you have a bottleneck, you can solve it. That said, TBH I think that adding autoboxing to the language was an error. It makes bad code look too innocent. Without autoboxing, this code would look like a mess and probably would have been caught earlier.
    • carlmr 7mo ago
      >They're not generic but they do the job, so if you have a bottleneck, you can solve it. But that's the thing, in other languages you don't need a workaround to work on primitives directly.