I've been developing a spring-boot application inside Intellij IDEA for a while. It's now complete and I'm about to send it of to other users.
I build it with mvn clean install
and try to start the built -jar file with java -jar target/my-app.jar
.
To my surprise it fails with an exception (hard to read but at least chopped up into several lines)
Exception encountered during context initialization - cancelling refresh attempt:
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'userController':
Unsatisfied dependency expressed through field 'userClient';
nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name '***.client.userclient.UserClient':
FactoryBean threw exception on object creation;
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration':
Unsatisfied dependency expressed through method 'setConfigurers' parameter 0;
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'webMvcConfig':
Unsatisfied dependency expressed through field 'authenticationInterceptor';
nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'authenticationInterceptor':
Unsatisfied dependency expressed through field 'authenticationClient';
nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name '***.client.authenticationclient.AuthenticationClient':
FactoryBean threw exception on object creation;
nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException:
Error creating bean with name 'mvcResourceUrlProvider':
Requested bean is currently in creation: Is there an unresolvable circular reference?
I also get some ascii art over the dependencies
***************************
APPLICATION FAILED TO START
***************************
Description:
The dependencies of some of the beans in the application context form a cycle:
| userController (field ****.client.userclient.UserClient ****.controller.user.UserController.userClient)
↑ ↓
| ****.client.userclient.UserClient
↑ ↓
| org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration
↑ ↓
| webMvcConfig (field ****.AuthenticationInterceptor ****.WebMvcConfig.authenticationInterceptor)
↑ ↓
| authenticationInterceptor (field ****.client.authenticationclient.AuthenticationClient ****.AuthenticationInterceptor.authenticationClient)
↑ ↓
| ****.client.authenticationclient.AuthenticationClient
↑ ↓
| mvcResourceUrlProvider
└─────┘
So I try to run it with mvn spring-boot:run
and it works!
I was under the impression that running with java -jar
and mvn spring-boot:run
would be the same. What am I missing?
I guess I could fix the cyclic dependencies but what bothers me now is why these two runners differ.
Thanks.
It's a problem in spring, see
https://github.com/spring-projects/spring-boot/issues/6045
https://github.com/spring-projects/spring-framework/issues/18879
Temporary crutch solution
set in application.properties or different way this:
spring.main.lazy-initialization=true
[Adding as an answer as couldn't comment]
Not exactly sure why java -jar
and mvn spring-boot:run
runners are different. Adding @Lazy
worked for java -jar
runner.
A.java
@Autowired
@Lazy
//setter injection
public void setB(B b) {
this.b = b;
}
B.java
// constructor injection
@Autowired
public B(A a) {
this.a = a;
}
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