GenericTypeResolver.resolveType() should resolve ParameterizedType recursively

[quaff]

import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.List;
import org.springframework.core.GenericTypeResolver;

public class Main {
	public interface Parent<T> {
		T m1();
		List<T> m2();
		List<List<T>> m3();
	}
	public interface Child extends Parent<String> {
	}
	public static void main(String[] args) {
		for (Method m : Parent.class.getMethods()) {
			Type type = m.getGenericReturnType();
			type = GenericTypeResolver.resolveType(type, Child.class);
			System.out.println("method " + m.getName() + "() will return " + type);
		}
	}
}

will print

method m3() will return java.util.List<java.util.List<T>>
method m1() will return class java.lang.String
method m2() will return java.util.List<java.lang.String>

The expected type for m3 should be java.util.List<java.util.List<String>>

[quaff]

Type type = m.getGenericReturnType(); // List<List<T>>
ResolvableType.forType(type).hasUnresolvableGenerics(); //should be true but false

[quaff]

Here is my workaround

	public static Type resolve(Type type, Class<?> contextClass) {
		if (type instanceof ParameterizedType) {
			ParameterizedType pt = (ParameterizedType) type;
			ResolvableType[] generics = new ResolvableType[pt.getActualTypeArguments().length];
			int i = 0;
			for (Type arg : pt.getActualTypeArguments()) {
				generics[i++] = ResolvableType.forType(resolve(arg, contextClass));
			}
			return ResolvableType.forClassWithGenerics((Class<?>) pt.getRawType(), generics).getType();
		}
		return GenericTypeResolver.resolveType(type, contextClass);
	}

[quaff]

Any update?

[quaff]

Superseded by #30079