[SOLVED] UnsatisfiedDependencyException: No qualifying bean of type 'XXX' available

UnsatisfiedDependencyException: No qualifying bean of type 'XXX' available

This is a Spring Boot project. My project is having another project as a dependency. Like this: SecurityConfig(my project) extends AbstractSecurityConfig(dependency project)

And this is the AbstractSecurityConfig code part:

public abstract class AbstractSecurityConfig {

    private SatValidationConfiguration satValidationConfiguration;

    @Autowired
    private SatConfig satConfig;

And this is the SatConfig (dependency project) code part.

@Lazy
@Component
public class SatConfig {

    @Value("${satKeysDir:/etc/satKeys}")
    private String satKeysDir;

    @Value("${pubSatKeys:test.pub}")
    private List<String> pubSatKeys;

    @Value("${pubSatKeysUrl:https://sat-prod.codebig2.net/keys}")
    private String pubSatKeysUrl;

    @Value("${satGracePeriod:1000}")
    private int satGracePeriod;

    private KeyResolverV1 keyResolver;

    @PostConstruct
    public void init() throws Exception {
        final File keyFolder = new File(satKeysDir);
        keyFolder.mkdirs();
        .....
    }
    .....
}

I tried unit testing.

But all unit tests are failing. I'm encountering an issue with my Spring application where I'm getting an UnsatisfiedDependencyException with the following error message:

Error creating bean with name 'securityConfig': Unsatisfied dependency expressed through field 'satConfig'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.yyy.SatConfig' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

I have a class SatConfig that is annotated with @Component and has the necessary @Value annotations to inject properties. However, it seems that Spring is unable to find a qualifying bean of type SatConfig during the bean creation process.

Verified that the SatConfig class is being scanned by Spring. The package containing SatConfig is included in the component scan configuration.

@EnableScheduling
@EnableCaching
@EnableConfigurationProperties()
@SpringBootApplication(
    scanBasePackageClasses = Application.class,
    scanBasePackages = {
        "com.xxx.my_project",
        "com.yyy.dependency_project"
    })
public class Application extends AbstractApplication implements WebMvcConfigurer {

Verified that the necessary dependencies for SatConfig are available and properly configured as beans.
```
@Lazy
@Component
public class SatConfig {
```

Solution

You can define SatConfig as Bean at the Test file separately. Clone the class to the test folder and use @TestConfiguration annotation. Then Spring Boot will see the bean at the test. Also you can define separate properties file for test. It solved for me.