尝试制作 Java EE/JPA 应用程序 运行，但我不断收到 Observer 的错误
Trying to make a Java EE/JPA application run, but I keep getting errors from Observer
我用 MySQL 数据源设置了 JPA，经过几个小时的驱动程序问题，终于可以了。
现在，当我尝试部署它时，我不断收到有关 Observer 的焊接错误。我不确定这意味着什么，我找不到任何相关信息。
如果有人能帮助我，我将不胜感激。
这是错误：
[2015-11-15 03:53:06,923] Artifact Artists:ear exploded: Error during artifact deployment. See server log for details.
[2015-11-15 03:53:06,923] Artifact Artists:ear exploded: java.lang.Exception: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"Artists_ear_exploded.ear\".WeldStartService" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"Artists_ear_exploded.ear\".WeldStartService: Failed to start service
Caused by: org.jboss.weld.exceptions.DefinitionException: Exception List with 1 exceptions:
Exception 0 :
javax.enterprise.event.ObserverException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at java.lang.Class.newInstance(Class.java:442)
at org.jboss.weld.security.NewInstanceAction.run(NewInstanceAction.java:33)
at java.security.AccessController.doPrivileged(Native Method)
at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:40)
at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:78)
at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:96)
at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:78)
at org.jboss.weld.injection.MethodInvocationStrategy$SimpleMethodInvocationStrategy.invoke(MethodInvocationStrategy.java:129)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:306)
at org.jboss.weld.event.ExtensionObserverMethodImpl.sendEvent(ExtensionObserverMethodImpl.java:121)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:284)
at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:262)
at org.jboss.weld.event.ObserverNotifier.notifySyncObservers(ObserverNotifier.java:271)
at org.jboss.weld.event.ObserverNotifier.notify(ObserverNotifier.java:260)
at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:154)
at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:148)
at org.jboss.weld.bootstrap.events.AbstractContainerEvent.fire(AbstractContainerEvent.java:54)
at org.jboss.weld.bootstrap.events.AbstractDefinitionContainerEvent.fire(AbstractDefinitionContainerEvent.java:42)
at org.jboss.weld.bootstrap.events.AfterBeanDiscoveryImpl.fire(AfterBeanDiscoveryImpl.java:61)
at org.jboss.weld.bootstrap.WeldStartup.deployBeans(WeldStartup.java:420)
at org.jboss.weld.bootstrap.WeldBootstrap.deployBeans(WeldBootstrap.java:83)
at org.jboss.as.weld.WeldStartService.start(WeldStartService.java:93)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: org.jboss.weld.context.AbstractUnboundContext.<init>(Z)V
at org.jboss.weld.environment.se.contexts.ThreadContext.<init>(ThreadContext.java:40)
at org.jboss.weld.environment.se.WeldSEBeanRegistrant.registerWeldSEContexts(WeldSEBeanRegistrant.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:88)
... 21 more
"}}
感谢 Neil Stockton 的帮助。
我从我的库中删除了 weld jar，并在我的 maven pom 文件中添加了 weld-core。
删除 weld jar 文件后一切正常！
我用 MySQL 数据源设置了 JPA，经过几个小时的驱动程序问题，终于可以了。
现在，当我尝试部署它时，我不断收到有关 Observer 的焊接错误。我不确定这意味着什么，我找不到任何相关信息。
如果有人能帮助我，我将不胜感激。
这是错误：
[2015-11-15 03:53:06,923] Artifact Artists:ear exploded: Error during artifact deployment. See server log for details.
[2015-11-15 03:53:06,923] Artifact Artists:ear exploded: java.lang.Exception: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"Artists_ear_exploded.ear\".WeldStartService" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"Artists_ear_exploded.ear\".WeldStartService: Failed to start service
Caused by: org.jboss.weld.exceptions.DefinitionException: Exception List with 1 exceptions:
Exception 0 :
javax.enterprise.event.ObserverException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at java.lang.Class.newInstance(Class.java:442)
at org.jboss.weld.security.NewInstanceAction.run(NewInstanceAction.java:33)
at java.security.AccessController.doPrivileged(Native Method)
at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:40)
at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:78)
at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:96)
at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:78)
at org.jboss.weld.injection.MethodInvocationStrategy$SimpleMethodInvocationStrategy.invoke(MethodInvocationStrategy.java:129)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:306)
at org.jboss.weld.event.ExtensionObserverMethodImpl.sendEvent(ExtensionObserverMethodImpl.java:121)
at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:284)
at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:262)
at org.jboss.weld.event.ObserverNotifier.notifySyncObservers(ObserverNotifier.java:271)
at org.jboss.weld.event.ObserverNotifier.notify(ObserverNotifier.java:260)
at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:154)
at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:148)
at org.jboss.weld.bootstrap.events.AbstractContainerEvent.fire(AbstractContainerEvent.java:54)
at org.jboss.weld.bootstrap.events.AbstractDefinitionContainerEvent.fire(AbstractDefinitionContainerEvent.java:42)
at org.jboss.weld.bootstrap.events.AfterBeanDiscoveryImpl.fire(AfterBeanDiscoveryImpl.java:61)
at org.jboss.weld.bootstrap.WeldStartup.deployBeans(WeldStartup.java:420)
at org.jboss.weld.bootstrap.WeldBootstrap.deployBeans(WeldBootstrap.java:83)
at org.jboss.as.weld.WeldStartService.start(WeldStartService.java:93)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: org.jboss.weld.context.AbstractUnboundContext.<init>(Z)V
at org.jboss.weld.environment.se.contexts.ThreadContext.<init>(ThreadContext.java:40)
at org.jboss.weld.environment.se.WeldSEBeanRegistrant.registerWeldSEContexts(WeldSEBeanRegistrant.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:88)
... 21 more
"}}
感谢 Neil Stockton 的帮助。
我从我的库中删除了 weld jar，并在我的 maven pom 文件中添加了 weld-core。
删除 weld jar 文件后一切正常！