Reflect4 Proxy Better -

Reflect is a built-in object that provides methods matching all proxy traps. Example: Reflect.get(), Reflect.set(), etc.

Reflect.get(target, "name"); // "Alice"

RetryPolicy retryPolicy = new RetryPolicy(3, 100);
PaymentService proxy = Reflect4.proxy(PaymentService.class)
.around((proxy, method, args, target) -> 
Exception lastError = null;
for (int i = 0; i < retryPolicy.maxAttempts(); i++) 
try 
return target.invoke(args);
 catch (Exception e) 
lastError = e;
Thread.sleep(retryPolicy.delayMs());
throw new RuntimeException("Failed after retries", lastError);
)
.build(); reflect4 proxy better
proxy.processPayment(amount);  // automatically retries on failure
 Reflect is a built-in object that provides methods

JDK’s InvocationHandler is method‑centric, forcing you to parse method names and arguments manually. Reflect4 provides a target‑aware, context‑rich handler: JDK’s InvocationHandler is method‑centric

Reflect4.proxy(Calculator.class)
    .by((proxy, method, args, target) -> 
        System.out.println("Before: " + method.getName());
        Object result = target.invoke(args);  // invoke original
        System.out.println("After: " + result);
        return result;
    )
    .build();

The target parameter lets you invoke the original method easily, and method gives you full Method reflection access.