将Spring从4.3.x降级到3.2.x后，Spock中的自动装配bean测试无效

Question

I downgrade my application from spring 4.x to 3.x and now when I fire simple test in spock which using autowired bean, this bean is null.

@ContextConfiguration(classes = Configuration.class)
class SomeTestClass extends Specification {

    @Autowired
    SomeService someService

    def "someService"(){
         expect:
         someService.returnHelloWorld() == "Hello World" // (<- NullPointer)

    }
}

My pom.xml file:

<dependencies>
  <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.2.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>3.2.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.groovy</groupId>
            <artifactId>groovy-all</artifactId>
            <version>2.4.12</version>
        </dependency>
        <dependency>
            <groupId>org.spockframework</groupId>
            <artifactId>spock-core</artifactId>
            <version>1.1-groovy-2.4</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.spockframework</groupId>
            <artifactId>spock-spring</artifactId>
            <version>1.1-groovy-2.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.2.1.RELEASE</version>
            <scope>test</scope>
        </dependency>
</dependencies>

After when I downgrade also spock-core/spring to 0.6-groovy-1.8 and groovy-all to 1.8 and fire my test it throws this exception:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'someAnotherBean' defined in file ../SomeBean.class: Instantiation of bean failed; nested exception isorg.springframework.beans.BeanInstantiationException: Could notinstantiate bean class [..SomeBean.class]: No default constructorfound; nested exception is java.lang.NoSuchMethodException:..SomeBean.()

This bean contains contructor which i used to intizialize final fieds in class:

@Component
@PropertySource("classpath:someproperties.properties")
public class HeaderFactory {

private final SomeObject someObject;

    public HeaderFactory(@Value("${someProperty1}") String someProperty1, @Value("${someProperty2}") String someProperty2) {
        SomeObject someObject = new SomeObject(someProperty1,someProperty2);
       this.someObject = someObject;
    }
}

Everything worked pretty well before I dowgraded spring version. Any ideas?

Answer 1

You could create a configuration class and define the problematic beans there:

@Configuration
class MyConfig {

    @Value("${someProperty1}") String prop1;
    @Value("${someProperty2}") String prop2

    @Bean
    public SomeBean someBean() {
        SomeBean bean = new SomeBean(prop1, prop2);
        return bean;
    }
}

Documentation here: https://docs.spring.io/spring/docs/3.2.0.RELEASE/spring-framework-reference/html/new-in-3.0.html#new-feature-java-config

Answer 2

I resolved my issue by this way:

@Component
public class UrlBuilder {

    private final String host;
    private final String port;
    private final String protocol;

    @Autowired
    public UrlBuilder(Environment env) {
        this.protocol = env.getRequiredProperty("app.server.protocol").toLowercase();
        this.serverHost = env.getRequiredProperty("app.server.host");
        this.serverPort = env.getRequiredProperty("app.server.port", Integer.class);
    }
}

Source