NashPL :
I am trying to save my session instances withing the Redis server ruining on local host. When I start the application I am getting a error massage and application wont start. It looks like the class can not be found or bean is wrong but I do not understand the error message well.
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 4.739 s <<< FAILURE! - in com.kb.webkb.WebkbApplicationTests
[ERROR] contextLoads(com.kb.webkb.WebkbApplicationTests) Time elapsed: 0.005 s <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisMessageListenerContainer' defined in class path resource [org/springframework/session/data/redis/config/annotation/web/http/RedisHttpSessionConfiguration.class]: Unsatisfied dependency expressed through method 'redisMessageListenerContainer' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [com/kb/webkb/configuration/session/SessionConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.jedis.JedisConnectionFactory]: Factory method 'connectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: redis/clients/util/Pool
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [com/kb/webkb/configuration/session/SessionConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.jedis.JedisConnectionFactory]: Factory method 'connectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: redis/clients/util/Pool
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.jedis.JedisConnectionFactory]: Factory method 'connectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: redis/clients/util/Pool
Caused by: java.lang.NoClassDefFoundError: redis/clients/util/Pool
Caused by: java.lang.ClassNotFoundException: redis.clients.util.Pool
It have used Jedis within the SessionConfiguration class to call for Jedis object.
@Configuration
@EnableRedisHttpSession
public class SessionConfig extends AbstractHttpSessionApplicationInitializer {
@Bean
public JedisConnectionFactory connectionFactory() {
return new JedisConnectionFactory();
}
}
I have tried a solution from this post: stackoverflow.com/q/33128318/11189140
but when I did I was/am getting this error
Description:
An attempt was made to call the method org.springframework.data.redis.connection.RedisConnection.getConfig(Ljava/lang/String;)Ljava/util/List; but it does not exist. Its class, org.springframework.data.redis.connection.RedisConnection, is available from the following locations:
jar:file:/home/kbuczynski/.m2/repository/org/springframework/data/spring-data-redis/2.1.5.RELEASE/spring-data-redis-2.1.5.RELEASE.jar!/org/springframework/data/redis/connection/RedisConnection.class
It was loaded from the following location:
file:/home/kbuczynski/.m2/repository/org/springframework/data/spring-data-redis/2.1.5.RELEASE/spring-data-redis-2.1.5.RELEASE.jar
POM.XML
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.kb</groupId>
<artifactId>webkb</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>webkb</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<exclusions>
<exclusion>
<groupId>io.lettuce</groupId>
<artifactId>lettuce-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session</artifactId>
<version>1.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
mle :
In your error message there is an NoClassDefFoundError: redis/clients/util/Pool which resides in redis/clients/jedis/util/Pool since Jedis 3.
Please check your (managed) dependencies (mvn dependency:tree), if you are really still using Jedis in version 2.x.
At least Spring Data Redis 2.1.x is using Jedis 2.9.3 where redis/clients/util/Pool is yet valid. Therefore I suspect conflicting dependencies in your case.
Addendum:
Thanks for sharing also your project. Now it's quite clear what is happening: The crucial part is your
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session</artifactId>
<version>1.2.2.RELEASE</version>
</dependency>
Please note that this is a managed dependency of Spring Boot, however you forced it to be in version 1.2.2.RELEASE. Remove this one from your dependencies, spring-session-data-redis is doing everything you need for you.
I've committed this one and also an integration test in a my forked repo and created a pull request for you.
Please verify that it also works for you!