A class implements `Decoder<Integer>` by declaring `Integer decode(String)`. Why may refl…

A class implements `Decoder<Integer>` by declaring `Integer decode(String)`. Why may reflection also report `Object decode(String)`?

1. The compiler generated a bridge method to preserve dispatch through the erased interface signature.
2. Reflection synthesizes an overload every time methods are queried.
3. `Object` is inferred from the string argument at runtime.
4. Java permits overloading methods by return type alone.