Unsatisfied dependencies for injecting EJB service into web (war)

Question

My beans.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                       http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
       version="1.1" bean-discovery-mode="annotated">
</beans>

My service (backend - type EJB) looks like this:

import javax.inject.Inject;
import javax.transaction.Transactional;

@Default
@Transactional(Transactional.TxType.REQUIRED)
public class UserServiceImpl implements UserService {

@Inject
private UserDao userDao;

@Inject
private UserMapper mapper;

and @Named annotated bean uses this (web):

import javax.inject.Inject;
import javax.inject.Named;
import org.omnifaces.cdi.ViewScoped;

@ViewScoped
@Named("indexMBean")
public class IndexMBean extends AbstractViewBean {

    @Inject
    private UserService userService;

Build was success, but deploy gives me this exception:

Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type UserService with qualifiers @Default at injection point [BackedAnnotatedField] @Inject private hu.food.bean.IndexMBean.userService

how can I set the Default injection for UserService?

the log says:

2018-11-12 11:28:25,706 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.deployment.unit."kaJava-ear-0.0.1-SNAPSHOT.ear".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."kaJava-ear-0.0.1-SNAPSHOT.ear".WeldStartService: Failed to start service at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1728) at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1556) at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378) at java.lang.Thread.run(Thread.java:748) Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type UserService with qualifiers @Default at injection point [BackedAnnotatedField] @Inject private hu.food.bean.IndexMBean.userService at hu.food.bean.IndexMBean.userService(IndexMBean.java:0)

It shows your code is missing dependency injection, show all logs or attache file that we can easily track it — Deedar Ali Brohi
Have you tried with totally empty beans.xml so not even elements <?xml ... or<beans/>? — pirho

Mehran Mastcheshmi Mehran Mastcheshmi · Accepted Answer · 2018-11-12T17:14:20

You set bean-discovery mode to annotated. so only beans annotated with a scope type will be detected

bean-discovery-mode="annotated">

please add a scope type annotation like @dependent to your bean

@Default
@Transactional(Transactional.TxType.REQUIRED)
@Dependent
public class UserServiceImpl implements UserService {

http://docs.jboss.org/cdi/spec/1.2/cdi-spec.html#bean_defining_annotations says:

The set of bean defining annotations contains:

@ApplicationScoped, @SessionScoped, @ConversationScoped and

@RequestScoped annotations,

all other normal scope types,

@Interceptor and @Decorator annotations,

all stereotype annotations (i.e. annotations annotated with @Stereotype),

and the @Dependent scope annotation.

Unsatisfied dependencies for injecting EJB service into web (war)

2 Answers