Autowired object is null in Rest controller when deployed on JBoss EAP - spring

Question

I am using Springboot and RESTEasy to create a small webapp, in my Controller class I am doing #Autowire for my Dao class. Whenever I deploy the code, the dao reference variable always ends up with null value. I have used #Component for controller and in mail Application class I have used #SpringBootApplication and at my dao class also I have added #Repository and #Service.
Please give some suggestions where exactly i am doing wrong?
Note: Works fine if I run it as a standalone Springboot app. But this issue occurs when deploy in JBoss server.
Code format is displayed below: While debugging, at line , List<DataDto> dataList = dao.findData(); always dao is null, because of which API call fails.
#Component
#Path("/")
public class apiController {
#Autowired
private ApiDao dao;
public void setApiDao(ApiDao dao) {
this.dao = dao;
}
#GET
#Path("/getData")
#Produces(MediaType.APPLICATION_JSON)
public List<DataDto> getDetails(){
List<DataDto> dataList = dao.findData();
return logList;
}
}
Dao class code is as below:
#Repository
#Service
public class ApiDao {
private final Logger log = LoggerFactory.getLogger(ApiDao.class);
private JdbcTemplate jdbcTemplate;
#Autowired
public ApiDao(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
public List<SystemEntity> findData() throws SystemException{
return entityList;
}
}
And for configuration i have used below code and in pom.xml added required dependencies:
#Component
#ApplicationPath("/rest/")
public class JaxrsApplication extends Application {
}

Answer 1

The Problem
JBoss provides inbuilt support for RESTEasy. So in this case the apiController is initialized twice:
Once by Spring
Once by JBoss.
The autowiring happens under the hood in the instance initialized by spring but when a call is triggered to the apiController it is handled by the instance initialized by JBoss.
Solution
Disable JBoss from initializing RESTEasy Controllers. In your spring boot application create a web.xml under src/main/webapp/WEB-INF and add the following context parameters:
<context-param>
<param-name>resteasy.scan</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>resteasy.scan.providers</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>resteasy.scan.resources</param-name>
<param-value>false</param-value>
</context-param>