Chapter 4.2.3. CONFIGURING the BUILT-IN LDAP SERVER not work.

[B00tlegger]

For some reason, when I run this code from Chapter 4.2.3.
CONFIGURING the BUILT-IN LDAP SERVER

`package bootlegger.tacocloud.configs;

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

@configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Override
protected void configure (AuthenticationManagerBuilder managerBuilder) throws Exception {
    managerBuilder.ldapAuthentication()
                  .userSearchBase("ou=people")
                  .userSearchFilter("(uid={0})")
                  .groupSearchBase("ou=groups")
                  .groupSearchFilter("member={0}")
                  .passwordCompare()
                  .passwordEncoder(new BCryptPasswordEncoder())
                  .passwordAttribute("passcode")
                  .and()
                  .contextSource()
                  .root("dc=tacocloud,dc=com")
                  .ldif("classpath:users.ldif");


}

}`
Such an Exception pops up:

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 java.lang.NoClassDefFoundError: org/springframework/ldap/core/ContextSource
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:657) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:485) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1181) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:311) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:755) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:402) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1247) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1236) ~[spring-boot-2.3.12.RELEASE.jar:2.3.12.RELEASE]
at bootlegger.tacocloud.TacoCloudApplication.main(TacoCloudApplication.java:10) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.3.12.RELEASE.jar:2.3.12.RELEASE]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.Filter]: Factory method 'springSecurityFilterChain' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/ldap/core/ContextSource
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:652) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
... 27 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/ldap/core/ContextSource
at org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder.ldapAuthentication(AuthenticationManagerBuilder.java:206) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at bootlegger.tacocloud.configs.SecurityConfig.configure(SecurityConfig.java:15) ~[classes/:na]
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.authenticationManager(WebSecurityConfigurerAdapter.java:266) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.getHttp(WebSecurityConfigurerAdapter.java:202) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.init(WebSecurityConfigurerAdapter.java:322) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.init(WebSecurityConfigurerAdapter.java:94) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at bootlegger.tacocloud.configs.SecurityConfig$$EnhancerBySpringCGLIB$$2d62ee27.init() ~[classes/:na]
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.init(AbstractConfiguredSecurityBuilder.java:370) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:324) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:41) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain(WebSecurityConfiguration.java:104) ~[spring-security-config-5.3.9.RELEASE.jar:5.3.9.RELEASE]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.15.RELEASE.jar:5.2.15.RELEASE]
... 28 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.ldap.core.ContextSource
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[na:na]
... 44 common frames omitted

Process finished with exit code 0

I understand, then we are talking about something else, but I would like to figure out how to work with this.