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java.lang.NullPointerException: 	at com.sun.faces.application.view.ViewScopeContext.get(ViewScopeContext.java:108)	at com.sun.faces.application.view.ViewScopeContext.get(ViewScopeContext.java:129)	at org.jboss.weld.context.PassivatingContextWrapper$AbstractPassivatingContextWrapper.get(PassivatingContextWrapper.java:76)	at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:740)	at org.jboss.weld.el.AbstractWeldELResolver.lookup(AbstractWeldELResolver.java:107)	at org.jboss.weld.el.AbstractWeldELResolver.getValue(AbstractWeldELResolver.java:90)	at org.jboss.weld.environment.servlet.util.ForwardingELResolver.getValue(ForwardingELResolver.java:49)	at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:67)	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)	at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:71)	at org.apache.el.parser.AstValue.getValue(AstValue.java:160)	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)	at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)	at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)	at javax.faces.component.UIOutput.getValue(UIOutput.java:174)	at javax.faces.component.UIInput.getValue(UIInput.java:291)	at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)	at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)	at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:919)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)	at javax.faces.render.Renderer.encodeChildren(Renderer.java:176)	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:889)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:456)	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133)	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2440)	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2429)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Thread.java:744)