Okta SSO与Spring MVC集成登录时端口格式错误求助

我正在开展一项POC项目，将Okta SSO与带有自定义登录及index JSP页面的Spring MVC进行集成。已完成Okta账号配置，设置了登录重定向URI和登出重定向URI，登录重定向URI为http://localhost:8080/authorization-code/callback。

当前application.yaml配置如下：

port: 8080

spring:
  security:
    oauth2:
      client:
        provider:
          okta:
            authorization-uri: http://localhost:8080/custom-login
            user-name-attribute: email

okta:
  oauth2:
    redirect-uri: https://dev-14057786.okta.com/oauth2/default
    client-id: <client ID>
    client-secret: <client-secret>
    issuer: https://dev-14057786.okta.com/oauth2/default
    scopes:
    - openid
    - email
    - profile

现在可以正常打开Okta登录页，但点击登录后出现如下错误：

java.lang.IllegalStateException: The port must be an integer: 8080https:
    at org.springframework.web.util.HierarchicalUriComponents.getPort(HierarchicalUriComponents.java:200) ~[spring-web-5.3.22.jar:5.3.22]
    at org.springframework.security.oauth2.client.web.OAuth2AuthorizationCodeGrantFilter.matchesAuthorizationResponse(OAuth2AuthorizationCodeGrantFilter.java:196) ~[spring-security-oauth2-client-5.7.3.jar:5.7.3]
    at org.springframework.security.oauth2.client.web.OAuth2AuthorizationCodeGrantFilter.doFilterInternal(OAuth2AuthorizationCodeGrantFilter.java:164) ~[spring-security-oauth2-client-5.7.3.jar:5.7.3]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.22.jar:5.3.22]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.security.web.authentication.ui.DefaultLogoutPageGeneratingFilter.doFilterInternal(DefaultLogoutPageGeneratingFilter.java:58) ~[spring-security-web-5.7.3.jar:5.7.3]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.22.jar:5.3.22]

恳请各位提供帮助。

内容的提问来源于stack exchange，提问作者Nataraj