The JDK's reflect 4 proxy has one major limitation: . If you need to proxy a concrete class (without interfaces), you must use bytecode generation libraries.
This is the factory class that creates proxy instances. Its most important static method is:
#include void InspectAndRun(const pro::proxy & p) // Leverage the reflect 4 proxy mechanism const TypeMetadata& meta = pro::proxy_reflect (p); std::cout << "Inspecting Type-Erased Object:\n"; std::cout << " - Type Name: " << meta.type_name << "\n"; std::cout << " - Memory Footprint: " << meta.allocation_size << " bytes\n"; std::cout << " - Optimized Copy Support: " << (meta.is_trivially_copyable ? "Yes" : "No") << "\n"; int main() pro::proxy p1 = pro::make_proxy (); pro::proxy p2 = pro::make_proxy (); InspectAndRun(p1); InspectAndRun(p2); return 0; Use code with caution. 5. Critical Constraints and Undefined Behavior