SpringBoot OAuth2 Sample Application - spring-boot

Question

application.yml
server:
port: 8082
spring:
security:
oauth2:
client:
registration:
custom-client:
client-id: R2dpxQ3vPrtfgF72
client-secret: fDw7Mpkk5czHNuSRtmhGmAGL42CaxQB9
client-name: Auth Server
scope: user_info
provider: custom-provider
redirect-uri-template: http://localhost:8082/login/oauth2/code/
client-authentication-method: basic
authorization-grant-type: authorization_code
provider:
custom-provider:
token-uri: http://localhost:8081/auth/oauth/token
authorization-uri: http://localhost:8081/auth/oauth/authorize
user-info-uri: http://localhost:8081/auth/user/me
user-name-attribute: name
extension of WebSecurityConfigurerAdapter
#Configuration
#EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
#Override
public void configure(HttpSecurity http) throws Exception {
http.antMatcher("/**") //
.authorizeRequests()//
.antMatchers("/", "/login**")//
.permitAll() //
.anyRequest() //
.authenticated() //
.and() //
.oauth2Login();
}
}
dependencies
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>jakarta.mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-client</artifactId>
<exclusions>
<exclusion>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-jose</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<!-- jaxb模块引用 - start -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
<!-- jaxb模块引用 - end -->
</dependencies>
Exception I am getting:
Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.Filter]: Factory method 'springSecurityFilterChain' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'clientRegistrationRepository' defined in class path resource [org/springframework/boot/autoconfigure/security/oauth2/client/servlet/OAuth2ClientRegistrationRepositoryConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.oauth2.client.registration.InMemoryClientRegistrationRepository]: Factory method 'clientRegistrationRepository' threw exception; nested exception is java.lang.IllegalArgumentException: redirectUriTemplate cannot be empty
few more info:
Tools: Maven, Eclipse, OpenJDK11
Question: What am I missing? The error seems like related to mis-configuration of bean redirectUriTemplate cannot be empty. The yml that I have written does not have any issue.
Not sure where I am going wrong.

Answer 1

The actual name of the attribute is not redirect-uri-template but in fact only redirect-uri.
Reference: https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/#oauth2login-boot-property-mappings