How to run hazelcast session replication using vaadin4spring? - spring

Question

I am writing a simple demo application using hazelcast session replication based on the shared security example
mentioned in here https://github.com/peholmst/vaadin4spring.
The problem is that if i am starting the application it stays on the login site with "communication error".
With vaadin debug on, it shows me "Response didn't contain a server id. Please verify that the server is up-to-date and that the response data has not been modified in transmission."
In the IDE no stack trace is shown.
I tried also the working example here https://vaadin.com/blog/microservices-high-availability, but it didn´t give me a hint how to integrate hazelcast with vaadin4spring.
Here is my configuration:
public void configure(AuthenticationManagerBuilder auth) throws Exception {
User.UserBuilder users = User.withDefaultPasswordEncoder();
auth.inMemoryAuthentication().withUser("user").password("{noop}user").roles("USER")
.and()
.withUser("admin").password("{noop}admin").roles("ADMIN");
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable(); // Use Vaadin's built-in CSRF protection instead
http.authorizeRequests().antMatchers("/login/**").anonymous()
.antMatchers("/vaadinServlet/UIDL/**").permitAll()
.antMatchers("/vaadinServlet/HEARTBEAT/**").permitAll().anyRequest().authenticated();
http.httpBasic().disable();
http.formLogin().disable();
// Remember to add the VaadinSessionClosingLogoutHandler
http.logout().addLogoutHandler(new VaadinSessionClosingLogoutHandler()).logoutUrl("/logout")
.logoutSuccessUrl("/login?logout").permitAll();
http.exceptionHandling().authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login"));
// Instruct Spring Security to use the same RememberMeServices as Vaadin4Spring. Also remember the key.
//http.rememberMe().rememberMeServices(rememberMeServices()).key("myAppKey");
// Instruct Spring Security to use the same authentication strategy as Vaadin4Spring
http.sessionManagement().sessionAuthenticationStrategy(sessionAuthenticationStrategy());
}
#Override
public void configure(WebSecurity web) throws Exception {
web.ignoring().antMatchers("/VAADIN/**");
}
/**
* The {#link AuthenticationManager} must be available as a Spring bean for Vaadin4Spring.
*/
#Override
#Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
/**
* The {#link SessionAuthenticationStrategy} must be available as a Spring bean for Vaadin4Spring.
*/
#Bean
public SessionAuthenticationStrategy sessionAuthenticationStrategy() {
return new SessionFixationProtectionStrategy();
}
#Bean(name = VaadinSharedSecurityConfiguration.VAADIN_AUTHENTICATION_SUCCESS_HANDLER_BEAN)
VaadinAuthenticationSuccessHandler vaadinAuthenticationSuccessHandler(HttpService httpService,
VaadinRedirectStrategy vaadinRedirectStrategy) {
return new VaadinUrlAuthenticationSuccessHandler(httpService, vaadinRedirectStrategy, "/");
}
#Bean
public HazelcastInstance hazelcastInstance() {
MapAttributeConfig attributeConfig = new MapAttributeConfig()
.setName(HazelcastSessionRepository.PRINCIPAL_NAME_ATTRIBUTE)
.setExtractor(PrincipalNameExtractor.class.getName());
Config config = new Config();
config.setProperty("hazelcast.max.no.heartbeat.seconds", "60")
.getMapConfig("spring:session:sessions")
.addMapAttributeConfig(attributeConfig)
.addMapIndexConfig(new MapIndexConfig(HazelcastSessionRepository.PRINCIPAL_NAME_ATTRIBUTE, false));
config.getGroupConfig().setName("admin");
return Hazelcast.newHazelcastInstance(config);
}
pom snippet:
<java.version>1.8</java.version>
<vaadin.version>8.7.2</vaadin.version>
<spring-boot-ext.version>2.0.0.RELEASE</spring-boot-ext.version>
</properties>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-hazelcast</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.vaadin.spring.extensions</groupId>
<artifactId>vaadin-spring-ext-boot</artifactId>
<version>${spring-boot-ext.version}</version>
</dependency>
<dependency>
<groupId>org.vaadin.spring.extensions</groupId>
<artifactId>vaadin-spring-ext-security</artifactId>
<version>${spring-boot-ext.version}</version>
</dependency>
<dependency>
<groupId>org.vaadin.spring.extensions</groupId>
<artifactId>vaadin-spring-ext-core</artifactId>
<version>${spring-boot-ext.version}</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>