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java.lang.NullPointerException: 	at org.hibernate.validator.internal.cdi.InjectingConstraintValidatorFactory.releaseInstance(InjectingConstraintValidatorFactory.java:59)	at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintValidatorManager.clear(ConstraintValidatorManager.java:165)	at org.hibernate.validator.internal.engine.ValidatorFactoryImpl.close(ValidatorFactoryImpl.java:201)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:40)	at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100)	at org.jboss.weld.proxies.ValidatorFactory$618047133$Proxy$_$$_WeldClientProxy.close(Unknown Source)	at org.jboss.as.ee.beanvalidation.LazyValidatorFactory.close(LazyValidatorFactory.java:126)	at org.jboss.as.weld.CdiValidatorFactoryService.stop(CdiValidatorFactoryService.java:97)	at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:2056)	at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:2017)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:744)