Java反射-从非泛型类获取泛型方法

Question

is it possible to get a generic (parametrized) method from a non-generic class through reflection? Here's a sample of what i want to do:

public interface GenericInterface<T> {
    public T publicMethod(T arg);
}

public class NonGenericClassWithGenericMethods {
    private <T> void privateMethod(GenericInterface<T> arg) {

    }
}

public class Generics {
    public static void main(String[] args) {
        try {
            NonGenericClassWithGenericMethods.class.getMethod("privateMethod", GenericInterface.class).setAccessible(true);
        }
        catch(Exception ex) {
            ex.printStackTrace();
        }
    }
}

If i run Generics, i get:

java.lang.NoSuchMethodException: NonGenericClassWithGenericMethods.privateMethod(GenericInterface)

Thanks everybody

Answer 1

.getDeclaredMethod()应改为使用的.getMethod()仅返回公共的。