Support record canonical constructor in BeanUtils

[EugeneNik]

Affected version where noticed: spring-beans: 6.2.0-RC1
I'm not sure is it crucial or not, but method becomes to be invoked after migration from my MvcResult to MvcTestResult and to MockMvcTester

When one of the requestParameters is implemented as record with multiple public constructors, binding fails with

java.lang.IllegalStateException: No primary or single unique constructor found for class org.myconfs.security.jwt.JwtUser
	at org.springframework.beans.BeanUtils.getResolvableConstructor(BeanUtils.java:265)
	at org.springframework.validation.DataBinder.createObject(DataBinder.java:928)
	at org.springframework.validation.DataBinder.construct(DataBinder.java:907)
	at org.springframework.web.bind.ServletRequestDataBinder.construct(ServletRequestDataBinder.java:116)
	at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.constructAttribute(ServletModelAttributeMethodProcessor.java:157)
	at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:148)
	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:122)
	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:224)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:178)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:986)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:891)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1088)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:978)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)

class implementation:

public record JwtUser(Long id, String username, String email, String password,
                      Collection<GrantedAuthority> authorities, boolean enabled,
                      LocalDateTime lastPermissionResetDate) implements UserDetails {

    public JwtUser(String username, String password, Collection<GrantedAuthority> authorities) {
        this(null, username, "", password, authorities, false, null);
    }

    public static JwtUser withLastPermissionResetDate(JwtUser user, LocalDateTime lastPermissionResetDate) {
        return new JwtUser(user.id, user.username, user.email, user.password, user.authorities, user.enabled, lastPermissionResetDate);
    }

  ...
}

There is a suggestion to improve BeanUtils.getResolvableConstructor method to work with records with more than 1 public constructor using the fact that there is only one canonical record's constructor, which shall contain all record components

[sdeleuze]

Thanks for your contribution, I applied some significant refinements as part of effe606, but the principle is very close.

[EugeneNik]

Thank you! Looks good