referencing object into antoher jar with @Autowired

[javacomelava]

Hi all

My application back-end,spring based and deployed in Tomcat 7, is composed by four different .jar and one .war,which contains jax-ws interfaces webservice,and use the mentioned jars:

1)ServiceWS.war:
JAX-WS interfaces to expose business-service as webservice. Here,under "resource" folder,was located Spring application-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	                    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
	                    http://www.springframework.org/schema/context
	                    http://www.springframework.org/schema/context/spring-context-3.1.xsd">
	
	<context:annotation-config />
	<context:component-scan base-package="it.company.myapp.ws.impl"/>
	<context:component-scan base-package="it.company.myapp.business.services.impl"/>
	<context:component-scan base-package="it.company.myapp.persistence.dao.impl"/>
	
	<!-- Other stuff -->
          ....
          ....

2) Business.jar and Dao..jar first contains Business Logic and second contains Data Acess Logic. The Business Logic Bean was annotad with @Service and the Data Access Bean was annotad with @Repository

In the application-context.xml,as you can see, i refer to classes in the business.jar and dao.jar by:

<context:component-scan base-package="it.company.myapp.business.services.impl"/>     <context:component-scan base-package="it.company.myapp.persistence.dao.impl"/>

So,In my ws service:

@Component
@[...Other Jax-Ws Annotation...]
public ProxyWS{

    /* property which refers to interface in the business.jar. It's implementation class is annotated with @Service */
   @Autowired
   private IBusinessServices services;  

   public int executeSum(int a,int b)
   {
       return services.sum(a,b);
    }

}

So,when Tomcat 7 server starts all seems to work and console shows me a message saying that Spring context was correctly loaded! But when I try to invoke ws-service (executeSum) I have NULL-POINTER on the "services" property.

P.S.:
Consider if i change the:

<context:component-scan base-package="it.company.myapp.business.services.impl"/>

and insert a package which not exist, an exception on server startup is thrown:

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: it.company.myapp.business.services.IBusinessServices it.company.myapp.ws.impl.ProxyWS.service; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [it.company.myapp.business.services.IBusinessServices] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:506)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
	... 21 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [it.company.myapp.business.services.IBusinessServices] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:924)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:793)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
	... 23 more

Any suggestion?

[javacomelava]

Ok I solved ....

The JAX-WS ENDPOINT CLASS (in my case ProxyWS) annotated with @WebService Annotation is not recognized as a Spring component,also if it was annotated with @Component. So @Autowire can't work in this class.

But Spring,to see JAX-WS ENDPOINT CLASS as SPRING ENABLED COMPONENT,need this directive into context.xml:

<bean class="org.springframework.remoting.jaxws.SimpleJaxWsServiceExporter" />

With this directive,Spring consider all class with @WebService annotation ad Spring Component,so,we can use @Autowired annotation into our JAX-WS ENDOPOINT!

This is great!