JAVA-14682 Update spring-boot-keycloak-2 module under spring-boot-modules to remove usage of deprecated WebSecurityConfigurerAdapter (#12927)

spring-boot-modules/spring-boot-keycloak-2/src/main/java/com/baeldung/disablingkeycloak/DisableSecurityConfiguration.java

@@ -1,20 +1,23 @@
 package com.baeldung.disablingkeycloak;
 
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+import org.springframework.security.web.SecurityFilterChain;
 
 @Configuration
 @ConditionalOnProperty(name = "keycloak.enabled", havingValue = "false")
-public class DisableSecurityConfiguration extends WebSecurityConfigurerAdapter {
+public class DisableSecurityConfiguration {
 
-    @Override
-    protected void configure(final HttpSecurity http) throws Exception {
+    @Bean
+    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
         http.csrf()
             .disable()
             .authorizeRequests()
             .anyRequest()
             .permitAll();
+        return http.build();
     }
+
 }