U cannot Pass!

TestPromiseSetter.java

package com.dtc.fidxc.web.zoo;

import java.util.ArrayList;
import java.util.List;

import com.dtc.fhir.gwt.CodeableConcept;
import com.dtc.fhir.gwt.Practitioner;
import com.dtc.fhir.gwt.util.PromiseSetter;

public class TestPromiseSetter {
	public static void main(String[] args) {
		List<CodeableConcept> specialtyList = new ArrayList<>();
		CodeableConcept specialty = new CodeableConcept();
		PromiseSetter.set(specialty, "coding[0].system.value", "block");

		//無法~
		PromiseSetter.set(new Practitioner(), "practitionerRole[0].specialty", specialtyList);
	}
}