Finding most specific overloaded method using MethodHandle

Question

Suppose I have three methods inside a given type (class/interface):

public void foo(Integer integer);
public void foo(Number number);
public void foo(Object          


        

Answer 1

No, I haven't seen anything like that in MethodHandle API. Similar thing exists in commons-beanutils as MethodUtils#getMatchingAccessibleMethod so you don't have to implement that.

It will look something like this:

Object object = getLong();
Method method = MethodUtils.getMatchingAccessibleMethod(this.getClass(), "foo", object.getClass());

You can convert to MethodHandle API or just use the Method directly:

MethodHandle handle = MethodHandles.lookup().unreflect(method);
handle.invoke(this, object);