ProviderSettings @Bean is required

Issue gh-373

oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2AuthorizationCodeAuthenticationProvider.java

@@ -124,7 +124,7 @@ public final class OAuth2AuthorizationCodeAuthenticationProvider implements Auth
 		this.refreshTokenGenerator = refreshTokenGenerator;
 	}
 
-	@Autowired(required = false)
+	@Autowired
 	protected void setProviderSettings(ProviderSettings providerSettings) {
 		this.providerSettings = providerSettings;
 	}

oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2ClientCredentialsAuthenticationProvider.java

@@ -90,7 +90,7 @@ public final class OAuth2ClientCredentialsAuthenticationProvider implements Auth
 		this.jwtCustomizer = jwtCustomizer;
 	}
 
-	@Autowired(required = false)
+	@Autowired
 	protected void setProviderSettings(ProviderSettings providerSettings) {
 		this.providerSettings = providerSettings;
 	}

oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2RefreshTokenAuthenticationProvider.java

@@ -118,7 +118,7 @@ public final class OAuth2RefreshTokenAuthenticationProvider implements Authentic
 		this.refreshTokenGenerator = refreshTokenGenerator;
 	}
 
-	@Autowired(required = false)
+	@Autowired
 	protected void setProviderSettings(ProviderSettings providerSettings) {
 		this.providerSettings = providerSettings;
 	}

oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/oidc/authentication/OidcClientRegistrationAuthenticationProvider.java

@@ -120,7 +120,7 @@ public final class OidcClientRegistrationAuthenticationProvider implements Authe
 		this.jwtEncoder = jwtEncoder;
 	}
 
-	@Autowired(required = false)
+	@Autowired
 	protected void setProviderSettings(ProviderSettings providerSettings) {
 		this.providerSettings = providerSettings;
 	}

oauth2-authorization-server/src/test/java/org/springframework/security/config/annotation/web/configurers/oauth2/server/authorization/OidcUserInfoTests.java

@@ -58,6 +58,7 @@ import org.springframework.security.oauth2.server.authorization.client.InMemoryR
 import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
 import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
 import org.springframework.security.oauth2.server.authorization.client.TestRegisteredClients;
+import org.springframework.security.oauth2.server.authorization.config.ProviderSettings;
 import org.springframework.security.oauth2.server.authorization.oidc.authentication.OidcUserInfoAuthenticationToken;
 import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationToken;
 import org.springframework.security.web.SecurityFilterChain;
@@ -306,6 +307,13 @@ public class OidcUserInfoTests {
 			return new NimbusJwsEncoder(jwkSource);
 		}
 
+		@Bean
+		ProviderSettings providerSettings() {
+			return ProviderSettings.builder()
+					.issuer("https://auth-server:9000")
+					.build();
+		}
+
 	}
 
 }