spring boot hazelcast session storing ClassNotFoundException

[Валентин Твардовский]

Hello :)

I'm trying to configure Hazelcast Client/Server topology to be able to store spring session in hazelcast. 

I have a server with such configs

@Configuration
@EnableHazelcastHttpSession
public class HazelcastServerConfiguration {

@Bean
public Config hazelCastConfig() {
Config config = new Config();

config.getMapConfig(HazelcastIndexedSessionRepository.DEFAULT_SESSION_MAP_NAME)
.addMapAttributeConfig(springSessionAttributeConfig())
.addMapIndexConfig(springSessionIndexConfig());

SerializerConfig serializerConfig = new SerializerConfig();
serializerConfig.setImplementation(new HazelcastSessionSerializer()).setTypeClass(MapSession.class);
config.getSerializationConfig().addSerializerConfig(serializerConfig);

return config;
}

@Bean
public HazelcastInstance hazelcastInstance(Config config) {
return Hazelcast.newHazelcastInstance(config);
}

private MapAttributeConfig springSessionAttributeConfig() {
return new MapAttributeConfig()
.setName(HazelcastIndexedSessionRepository.PRINCIPAL_NAME_ATTRIBUTE)
.setExtractor(PrincipalNameExtractor.class.getName());
}

private MapIndexConfig springSessionIndexConfig() {
return new MapIndexConfig(HazelcastIndexedSessionRepository.PRINCIPAL_NAME_ATTRIBUTE, false);
}
}

and

@SpringBootApplication
public class NowohazelcastappApplication {

public static void main(String[] args) {
SpringApplication.run(NowohazelcastappApplication.class, args);
}
}

thats all server classes for now

and dependencies

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
......
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast</artifactId>
<version>3.12.11</version>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-hazelcast</artifactId>
</dependency>
</dependencies>

And client side configs:

@Bean
public ClientConfig clientConfig() {
ClientConfig clientConfig = new ClientConfig();
SerializerConfig serializerConfig = new SerializerConfig();
serializerConfig.setImplementation(new HazelcastSessionSerializer()).setTypeClass(MapSession.class);
clientConfig.getSerializationConfig().addSerializerConfig(serializerConfig);
return clientConfig;
}

@Bean()
public HazelcastInstance hazelcastInstance(ClientConfig clientConfig){
return HazelcastClient.newHazelcastClient(clientConfig);
}


And I`m getting this error during attemption to store session
...HazelcastSerializationException: java.lang.ClassNotFoundException: com.test.session.CustomerInSession

this is a class from the client side and i have some others classes also with such exception

Does hazelcast have any way to serialize and deserialize my CustomerInSession class (and others) without copying this class on server side ?

[Валентин Твардовский]

So the main problem that server side is trying to deserialize session map info - how can I avoid this problem? Maybe I missed something in my configs?

среда, 7 апреля 2021 г. в 15:00:59 UTC+3, Валентин Твардовский:

[Rafal Leszko]

Hi,

You can check the related Hazelcast Guide: https://guides.hazelcast.org/spring-session-hazelcast/

Cheers,

Rafał

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[Валентин Твардовский]

Thanks a lot!

ср, 7 апр. 2021 г. в 15:34, Rafal Leszko <ra...@hazelcast.com>:

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