Spring WebFlow doesn't use the the implemented validator - spring-boot

Question

Spring webflow does not use the custom validator PatientValidator to validate Patient model while transitioning from selectPatient state to selectDoctor state.
Here is my code
Patient.java
#Data
#Entity
public class Patient implements Serializable {
private static final long serialVersionUID = -5116169782847291743L;
...
}
PatientValidator.java
#Component
public class PatientValidator extends FieldValidator {
public PatientValidator() { }
public void validateSelectPatient(Patient patient, Errors errors) {
System.out.println("PatientValidator . validateSelectPatient");
}
public void validateSelectDoctor(Patient patient, Errors errors) {
System.out.println("PatientValidator . validateSelectDoctor");
}
}
submit-request-flow.xml
<?xml version="1.0" encoding="UTF-8"?>
<flow xmlns="http://www.springframework.org/schema/webflow"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd">
<secured attributes="ROLE_OFFICER" match="any"/>
<on-start>
<evaluate expression="submitRequestFlow.getPatient()" result="flowScope.patient"></evaluate>
</on-start>
<view-state id="selectPatient" view="flows/requests/new/select-patient" model="patient">
<transition on="select" to="selectDoctor"></transition>
</view-state>
<view-state id="selectDoctor" view="flows/requests/new/select-doctor">
<transition on="select" to="selectTestType"></transition>
<transition on="back" to="selectPatient"></transition>
</view-state>
...
<end-state id="finishFlow" view="externalRedirect:#{uri.get('requests')}">
<output name="success" value="'Request has been added successfully'"/>
</end-state>
<end-state id="cancelFlow" view="externalRedirect:#{uri.get('requests')}">
</end-state>
<global-transitions>
<transition on="cancel" to="cancelFlow" history="discard" bind="false" validate="false"></transition>
</global-transitions>
</flow>
Even if I use the validation method inside Patient.java, the webflow uses it.
#Data
#Entity
public class Patient implements Serializable {
private static final long serialVersionUID = -5116169782847291743L;
...
public void validateSelectPatient(Errors errors) {
errors.reject("NoResultFound");
}
}
I have to use the custom validation rather than the model one, it works just the first time, but I guess after I rebooted spring boot project it doesn't work anymore.
Update #1
I am using
Spring boot 1.5.6.RELEASE
Spring WebFlow 2.4.5.RELEASE
Thymeleaf 3.0.7.RELEASE
Thymeleaf SpringSecurity4 3.0.2.RELEASE

Answer 1

I guess issue is related how spring DevTools works, here is a workaround I have done for another issue here SpelEvaluationException Method cannot be found.