[jboss-user] [EJB3] - Does @Singleton work ?

[Paolo Proni]

Paolo Proni [http://community.jboss.org/people/pewal] created the discussion

"Does @Singleton work ?"

To view the discussion, visit: http://community.jboss.org/message/610545#610545

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Hello everybody, I am using JBoss 6 stable and I try to deploy this simple example class:

*package* org.byteliberi.comanchero.ejb;

*import* javax.annotation.PostConstruct;
*import* javax.ejb.Singleton;
*import* javax.ejb.Startup;

@Startup
@Singleton
*public* *class* StatusBean {
*private* String status;

  @PostConstruct
*void* init() {
status = "Ready";
  }

}

When I deploy I get:

13:18:47,797 WARN  [org.jboss.profileservice.deployment.hotdeploy.HDScanner] Scan failed: org.jboss.deployers.client.spi.IncompleteDeploymentException: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):

DEPLOYMENTS MISSING DEPENDENCIES:
  Deployment "jboss.j2ee:ear=ComancheroBiz.ear,jar=ComancheroBizEJB.jar,name=StatusBean,service=EJB3_endpoint" is missing the following dependencies:
    Dependency "jboss.j2ee:ear=ComancheroBiz.ear,jar=ComancheroBizEJB.jar,name=StatusBean,service=EJB3" (should be in state "Installed", but is actually in state "** NOT FOUND Depends on 'jboss.j2ee:ear=ComancheroBiz.ear,jar=ComancheroBizEJB.jar,name=StatusBean,service=EJB3' **")

DEPLOYMENTS IN ERROR:
  Deployment "jboss.j2ee:ear=ComancheroBiz.ear,jar=ComancheroBizEJB.jar,name=StatusBean,service=EJB3" is in error due to the following reason(s): ** NOT FOUND Depends on 'jboss.j2ee:ear=ComancheroBiz.ear,jar=ComancheroBizEJB.jar,name=StatusBean,service=EJB3' **

          at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:1370) [:2.2.0.GA]
          at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:1316) [:2.2.0.GA]
          at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:968) [:2.2.0.GA]
          at org.jboss.system.server.profileservice.deployers.MainDeployerPlugin.checkComplete(MainDeployerPlugin.java:82) [:6.0.0.Final]
          at org.jboss.profileservice.dependency.ProfileControllerContext$DelegateDeployer.checkComplete(ProfileControllerContext.java:138) [:0.2.2]
          at org.jboss.profileservice.deployment.hotdeploy.HDScanner$HDScanAction.deploy(HDScanner.java:246) [:0.2.2]
          at org.jboss.profileservice.deployment.hotdeploy.HDScanner$HDScanAction.complete(HDScanner.java:192) [:0.2.2]
          at org.jboss.profileservice.management.TwoPCActionWrapper.doComplete(TwoPCActionWrapper.java:57) [:0.2.2]
          at org.jboss.profileservice.management.actions.AbstractTwoPhaseModificationAction.complete(AbstractTwoPhaseModificationAction.java:74) [:0.2.2]
          at org.jboss.profileservice.management.actions.AbstractTwoPhaseModificationAction.prepare(AbstractTwoPhaseModificationAction.java:95) [:0.2.2]
          at org.jboss.profileservice.management.ModificationSession.prepare(ModificationSession.java:87) [:0.2.2]
          at org.jboss.profileservice.management.AbstractActionController.internalPerfom(AbstractActionController.java:234) [:0.2.2]
          at org.jboss.profileservice.management.AbstractActionController.performWrite(AbstractActionController.java:213) [:0.2.2]
          at org.jboss.profileservice.management.AbstractActionController.perform(AbstractActionController.java:150) [:0.2.2]
          at org.jboss.profileservice.management.AbstractActionController.perform(AbstractActionController.java:135) [:0.2.2]
          at org.jboss.profileservice.deployment.hotdeploy.HDScanner.scan(HDScanner.java:146) [:0.2.2]
          at org.jboss.profileservice.deployment.hotdeploy.HDScanner.run(HDScanner.java:90) [:0.2.2]
          at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [:1.6.0_24]
          at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) [:1.6.0_24]
          at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) [:1.6.0_24]
          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) [:1.6.0_24]
          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180) [:1.6.0_24]
          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204) [:1.6.0_24]
          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_24]
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_24]
          at java.lang.Thread.run(Thread.java:680) [:1.6.0_24]


What can I do ?
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