com.mercateo:reflection

ProxyFactory — create an intercepting proxy

    InvocationHandler interceptor = ...
    TestClass proxy = ProxyFactory.createProxy(TestClass.class, interceptor);

Call — A type safe variant for examination of method calls

Given an arbitrary class

class TestClass {
    public Integer testMethod(String name, Long counter) {
        return 42;
    }
}

Call can record a given method call

Method method = Call.of(TestClass.class, c -> c.testMethod("foo", 1234l)).method();

and returns all relevant parameters like

• Method
• Call Arguments
• Object of Method

There is an additional shortcut to get the called method with Call.methodOf(...):

Method method = Call.methodOf(TestClass.class, c -> c.testMethod(null, 0));

Which replaces using reflection to get the method:

Method method = TestClass.class.getDeclaredMethod("testMethod", String.class, Long.class);

The latter can throw a NoSuchMethodException. Using Call.of(...)/Call.methodOf(...) with an unknown method just leads to a compile error.