Problem with @Inject (Unsatisfied dependencies)

[erraiuser]

Hi,

i am using Errai for several months - everything works fine without any problem - i really enjoy using Errai.

Yesterday i tried to add a Bean outside the client package (Test.java in dev package) an and tried to inject some other stuff, but this does not work as expected.

My project structure:

com.mydomain.myapp.client

com.mydomain.myapp.shared

com.mydomain.myapp.server

com.mydomain.myapp.dev (newly added)

Myapp.gwt.xml:

located on com.mydomain.myapp

<module ...>

    ....

  <source path='client' />

  <source path='shared' />

   <!-- (new) -->

  <source path='dev' />

</module>

Within client package in my EntrPoint class:

@AfterInitialization

public void start() {

Test test = new Test();

test.execute();

}

Test.java:

package com.mydomain.myapp.dev;

import javax.enterprise.context.Dependent;

import javax.inject.Inject;

import org.jboss.errai.ui.client.local.spi.TranslationService;

import com.google.gwt.user.client.Window;

@Dependent

public class Test {

  @Inject

  private TranslationService i18n;

  public void execute() {

  Window.alert("Executing Test");

  }

}

Error I:

[0mERROR [org.jboss.msc.service.fail] MSC000001: Failed to start service jboss.deployment.unit."myapp.war".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."myapp.war".WeldStartService: Failed to start service

  at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_31]

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_31]

  at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_31]

Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type TranslationService with qualifiers @Default

  at injection point [BackedAnnotatedField] @Inject private com.mydomain.myapp.dev.Test.i18n

  com.mydomain.myapp.dev.Test.i18n(Test.java:0)

If i try to inject one of my services (Errai RPC) in the Test class - i get a different error: ->

Error II:
[ERROR] Error generating BootstrapperImpl

java.util.concurrent.ExecutionException: org.jboss.errai.ioc.rebind.ioc.exception.UnsatisfiedDependenciesException:  @> com.mydomain.myapp.dev.Test

- field org.jboss.errai.codegen.meta.MetaField:[e-mail]() private  com.mydomain.myapp.shared.rpc.UserServices userService could not be satisfied for type: com.mydomain.myapp.shared.rpc.UserServices

  Message: can't resolve bean: com.mydomain.myapp.shared.rpc.UserServices ( @Default )

I am using Errai 3.2.2.Final with Wildfly-8.2.0.Final (Started with EmbeddedWildFlyLauncher in Eclipse)

It seems like every attempt to inject something in Test.java fails. If i remove the injection points i can use the Test Class in my client package.

This is a working, deployable Errai setup / project - all things in the client, shared and server packages work as expected - only the newly added Test File in the "dev" package fails to work if i try to inject something

Are there any Errai or GWT configuration options to make this work?

Any hints?

Thanks!

[erraiuser]

Hi,

i solved this by using the annotation com.google.inject.Inject instead of javax.inject.Inject. This worked for me because we have only one java class in this package - some sort of status bean - containing only information about our local development environment.

But i would be interested to know why using javax.inject.Inject fails.

[mbarkley]

Hi,

Glad to hear you found a workaround. The reason you saw an error is because Weld was not able to find the TranslationService. There are lots of potential reasons why that could have happened, as TranslationService is a client-side type that is not meant to be deployed to an app server. By changing the @Inject annotation, you made it so the field was no longer a CDI injection point.

Cheers.