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java.lang.NullPointerException: 	at org.jboss.weld.bootstrap.Validator.validateInjectionTarget(Validator.java:311)	at org.jboss.weld.manager.InjectionTargetValidator.validate(InjectionTargetValidator.java:37)	at org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:367)	at org.glassfish.weld.WeldDeployer.event(WeldDeployer.java:199)	at org.glassfish.kernel.event.EventsImpl.send(EventsImpl.java:128)	at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:313)	at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)	at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)	at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)	at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)	at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)	at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)	at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)	at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)	at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)	at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)	at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)	at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)	at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)	at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)	at com.sun.grizzly.ContextTask.run(ContextTask.java:71)	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)	at java.lang.Thread.run(Thread.java:722)