How to get the method name from a java 8 lambda using serialization hacks

Main.java

package net.jhorstmann;

import java.io.*;

public class Main {

    public static class SerializedLam implements Serializable {
        private static final long serialVersionUID = 8025925345765570181L;
        public Class<?> capturingClass;
        public String functionalInterfaceClass;
        public String functionalInterfaceMethodName;
        public String functionalInterfaceMethodSignature;
        public String implClass;
        public String implMethodName;
        public String implMethodSignature;
        public int implMethodKind;
        public String instantiatedMethodType;
        public Object[] capturedArgs;
    }


    interface Getter<T, V> extends Serializable {
         V get(T bean);
    }

    private static final String BINARY = "iso-8859-1";

    static <T, V> String getMethodName(Getter<T, V> getter) throws IOException, ClassNotFoundException {

        String originalName = java.lang.invoke.SerializedLambda.class.getName();
        String replacedName = net.jhorstmann.Main.SerializedLam.class.getName();
        assert (originalName.length() == replacedName.length());

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(bos);
        oos.writeObject(getter);
        oos.flush();

        byte[] bytes = new String(bos.toByteArray(), BINARY).replace(originalName, replacedName).getBytes(BINARY);

        ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes));
        SerializedLam serializedLambda = (SerializedLam) (in.readObject());

        return serializedLambda.implMethodName;
    }

    static class Test {
        public String rumpelstiltskin() {
            return "";
        }
    }

    public static void main(String[] args) throws IOException, ClassNotFoundException {
        System.out.println(getMethodName(Test::rumpelstiltskin));
    }
}