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java.lang.NullPointerException: null	at org.apache.webbeans.web.context.WebContextsService.activateContext(WebContextsService.java:813)	at org.apache.webbeans.web.failover.FailOverBag.restore(FailOverBag.java:99)	at org.apache.webbeans.web.failover.FailOverBagWrapper.restore(FailOverBagWrapper.java:81)	at org.apache.webbeans.web.failover.DefaultOwbFailOverService.restoreBeans(DefaultOwbFailOverService.java:171)	at org.apache.webbeans.web.failover.FailOverBagWrapper.sessionDidActivate(FailOverBagWrapper.java:162)	at org.apache.catalina.session.StandardSession.activate(StandardSession.java:939)	at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:287)	at org.apache.catalina.session.StandardManager.load(StandardManager.java:204)	at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:470)	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241)	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)	at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3854)	at org.apache.catalina.manager.ManagerServlet.reload(ManagerServlet.java:949)	at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:360)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:185)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:269)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1773)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)	at java.lang.Thread.run(Thread.java:722)