AnnotationConfigApplicationContext has not been refreshed yet - what's wrong?

Question

My very basic spring application stopped working and I can't understand what's happened. pom.xml:

<properties>     <spring.version>4.1.1.RELEASE</spring.version> </properties>  <dependencies>     <dependency>         <groupId>org.springframework</groupId>         <artifactId>spring-core</artifactId>         <version>${spring.version}</version>     </dependency>     <dependency>         <groupId>org.springframework</groupId>         <artifactId>spring-context</artifactId>         <version>${spring.version}</version>     </dependency> </dependencies> 

Config class:

@Configuration public class MyConfig {  @Bean public HelloWorld helloWorld() {          return new HelloWorld();     } } 

Bean class:

public class HelloWorld {     private String message;      public void setMessage(String message) {         this.message = message;     }     public String getMessage() {          return message;     } } 

Entry point of application:

public class MainApp { public static void main(String[] args) {     AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();     ctx.register(MyConfig.class);     HelloWorld bean = ctx.getBean(HelloWorld.class);     bean.setMessage("ladjfaj");     System.out.println(bean.getMessage()); } } 

And I'm getting an error

Exception in thread "main" java.lang.IllegalStateException: org.springframework.context.annotation.AnnotationConfigApplicationContext@6ebf8cf5 has not been refreshed yet at org.springframework.context.support.AbstractApplicationContext.assertBeanFactoryActive(AbstractApplicationContext.java:943) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:967) at com.nikolas.config.MainApp.main(MainApp.java:12)

Answer 1

You have to call ctx.refresh() before you can call ctx.getBean(HelloWorld.class);