Boot + Security + Data Rest + Data MongoDB = ApplicationEventMulticaster not initialized

[benneq]

I faced an issue when using Spring Boot 1.1.3 + Spring Security + Spring Data REST + Spring Data MongoDB:

Caused by: java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2c066c9f: startup date [Mon Jun 30 14:37:37 CEST 2014]; root of context hierarchy
    at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:346)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:333)
    at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:307)

I've written a sample Application which only has 5 files, which are all mandatory to reproduce the exception. Here's the maven application: http://we.tl/ei6sHfrDkT

@Configuration
@ComponentScan
@EnableAutoConfiguration
@Import(RepositoryRestMvcConfiguration.class)
public class Application extends SpringBootServletInitializer {
    private static Class<Application> applicationClass = Application.class;
    public static void main(String[] args) throws Exception {
        SpringApplication.run(Application.class, args);
    }
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(applicationClass);
    }
}

// can't start the app with default Spring Boot settings in properties file,
// because it tries to read the password as char[] and has no registered
// Converter for that
@Configuration
@EnableMongoRepositories
public class MongoConfig {
    @Autowired
    Environment env;

    @Bean
    @Primary
    public Mongo mongo() throws Exception {
        return new MongoClient(
                new ServerAddress(
                        env.getRequiredProperty("mongodb.host"),
                        env.getRequiredProperty("mongodb.port", Integer.class)
                        ),
                Arrays.asList(MongoCredential.createMongoCRCredential(
                        env.getRequiredProperty("mongodb.username"),
                        env.getRequiredProperty("mongodb.database"),
                        env.getRequiredProperty("mongodb.password").toCharArray()
                        ))
                );
    }
}

@Document(collection="asset")
public class Asset implements Identifiable<ObjectId> {
    @Id
    private ObjectId id;
    @Override
    public ObjectId getId() { return id; }
    private String filename;
    public String getFilename() { return filename; }
}

public interface AssetRepo extends Repository<Asset, ObjectId> {}

@Component
public class AssetResourceProcessor implements ResourceProcessor<Resource<Asset>> {
    @Autowired
    EntityLinks entityLinks;

    @Override
    public Resource<Asset> process(Resource<Asset> resource) {
        return resource;
    }
}

If you remove the @Autowired EntityLinks and/or the implements ResourceProcessor<...> the exception disappears.

(Additionally of course you can remove Spring Security and/or Spring Data REST from pom.xml and it works, too)

I also tested it with JPA / Hibernate / HikariCP: No problem. Here the I can use my ResourceProcessor with @Autowired EntityLinks.

pom.xml contains:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.1.3.RELEASE</version>
</parent>

<properties>
    <java.version>1.8</java.version>
    <jackson.version>2.4.0</jackson.version>
    <servlet-api.version>3.1.0</servlet-api.version>
</properties>

<dependencies>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-rest</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-mongodb</artifactId>
    </dependency>
</dependencies>

EDIT:
It also happens with 1.1.4.BUILD-SNAPSHOT and/or Spring Security 4.0.M1

[dsyer]

It might be worth trying a snapshot of Spring Data REST and Spring HATEOAS.

[benneq]

Thank you!

The problem is Spring Data REST!

Snapshot 2.1.2 and Snaphop 2.2.0 work.

Version of Hateoas / Security / Boot don't matter at all.

Any information when 2.1.2 or 2.2.0 will go stable?

[philwebb]

Check with @olivergierke. Dijkstra just released SR1 so I imaging that 2.1.2 will be a little while.

[odrotbohm]

Spring Data REST 2.1.2 snapshots are effectively what has been released as 2.1.1 a few hours ago. There's been a lot of improvements in the startup order in this release so you should see this working with Spring Data REST 2.1.1 already. If not, feel free to open up a ticket with SD REST directly.

[benneq]

Yeah I just saw that spring-boot-starter-data-rest depends on SDR 2.1.0.
Now I told maven to use 2.1.1 and the Exception ist gone!

Thank you! :)

[wilkinsona]

In the Boot 1.1.4 snapshots, spring-boot-starter-data-rest depends on Spring Data REST 2.1.1.