#Autowired are giving Null Pointer Exceptions in SpringBoot CXF application - soap

Question

I have created a SpringBoot CXF soap service from an existing WSDL file. I can now access WSDL from my service running on embedded tomcat from the springboot application. When I am trying to send a request to the service from soap-ui, the control reaches the implementation of the service method and then while it access the #Autowired service layer, it throws all NPE, as the service object is null (I have seen this while debugging). If I manually create (new Service() by commenting out the #Autowired object), the flow can reach the service implementation and then the DAO object fails as it cannot #Autowire the DAO Impl, further when i create the manually DAO Impl object it fails at #PersistenceContext, as it the entity manager is null.
I have made sure service is annotated with #Service, DAO layer with #Repository, still the issue persists. Also i have added #ComponentScan and giving all the package names, still i am getting null for all #Autowired.
Code below: Configuration class
#SpringBootApplication
public class EmWebSvcBootApplication extends SpringBootServletInitializer{
public static void main(String[] args) {
SpringApplication.run(EmWebSvcBootApplication.class, args);
}
public static final String SERVICE_NAME_URL_PATH = "/em";
public static final String EM_ISSUER_SERVICE_NAME_URL_PATH = "/EntitlementIssuer";
#Bean(name=Bus.DEFAULT_BUS_ID)
public SpringBus springBus() {
return new SpringBus();
}
#Bean
public ServletRegistrationBean cxfServlet() {
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new CXFServlet(), SERVICE_NAME_URL_PATH + "/*");
// Add custom Title to CXF´s ServiceList
Map<String, String> initParameters = servletRegistrationBean.getInitParameters();
initParameters.put("service-list-title", "My Test service");
return servletRegistrationBean;
}
#Bean
public Endpoint endpoint() {
EndpointImpl endpoint = new EndpointImpl(springBus(), new EntitlementIssuerEndpointImpl());
endpoint.setServiceName(entitlementIssuer_Service().getServiceName());
endpoint.setWsdlLocation(entitlementIssuer_Service().getWSDLDocumentLocation().toString());
endpoint.publish(EM_ISSUER_SERVICE_NAME_URL_PATH);
return endpoint;
}
#Bean EntitlementIssuer_Service entitlementIssuer_Service(){
return new EntitlementIssuer_Service();
}
}
Service class:
#Service
public class EntitlementIssuerServiceImpl implements EntitlementIssuerService {
private static final Logger logger = LoggerFactory.getLogger(EntitlementIssuerServiceImpl.class);
#Autowired
private EntitlementIssuerDAO entitlementIssuerDAO;
#Transactional(readOnly=true)
public List<EntitlementIssuerResponseWrapper> getEntitlementIssuers(EntitlementIssuerRequestWrapper requestWrapper)
throws EMSystemException, EMBusinessException {
try{
daoResponse = entitlementIssuerDAO.findEntitlementIssuers(requestWrapper);
}catch(Throwable t){
logger.error("Error while getting entitlement issuers: " + t.getMessage());
throw new EMSystemException("Error while getting entitlement issuers: " + t.getMessage());
}
}
DAO layer:
#Repository
public class EntitlementIssuerDaoImpl implements EntitlementIssuerDAO{
#PersistenceContext
private EntityManager entityManager;
public EntityManager getEntityManager() {
return entityManager;
}
#Override
public List<EntitlementIssuer> findEntitlementIssuers(EntitlementIssuerRequestWrapper request) {
Session session = (Session) entityManager.getDelegate();
Criteria criteria = session.createCriteria(EntitlementIssuer.class, "entitlementIssuer");
setupCriteria(request,criteria);
List<EntitlementIssuer> output = criteria.list();
return output;
}
}
pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<em.wsdl.version>2.2.0</em.wsdl.version>
<cxf.version>3.1.7</cxf.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<!-- Apache CXF -->
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>${cxf.version}</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http</artifactId>
<version>${cxf.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
I have added all the configurations that i am using, any help to fix this is highly appreciated. Basically all the #Autowired services, data layers, and entity managers are not loaded (as i see them as null in the debug).

Answer 1

I have been able to fix the issue based on the info from https://github.com/codecentric/cxf-spring-boot-starter
/**
* Configuration of SOAP Web services
*/
#Configuration
public class EntitlementIssuerServiceSOAPConfig {
#Autowired
private Bus bus;
#Bean
public EntitlementIssuerService getEntitlementIssuerServiceWebServiceImpl() {
return new EntitlementIssuerServiceWebServiceImpl();
}
#Bean (name = "EntitlementIssuerServiceWebService")
public Endpoint endpoint() {
EndpointImpl endpoint = new EndpointImpl(bus, getEntitlementIssuerServiceWebServiceImpl());
endpoint.publish("/EntitlementIssuerService");
return endpoint;
}
}