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java.lang.NullPointerException at org.apache.catalina.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:2001) at org.apache.catalina.loader.WebappClassLoader.findResource(WebappClassLoader.java:961) at org.apache.catalina.loader.WebappClassLoader.getResource(WebappClassLoader.java:1096) at com.opensymphony.xwork2.util.ClassLoaderUtil.getResource(ClassLoaderUtil.java:83) at com.opensymphony.xwork2.util.location.LocationUtils.getLocation(LocationUtils.java:288) at com.opensymphony.xwork2.util.location.LocationUtils.getLocation(LocationUtils.java:202) at com.opensymphony.xwork2.XWorkException.<init>(XWorkException.java:93) at com.opensymphony.xwork2.XWorkException.<init>(XWorkException.java:76) at com.opensymphony.xwork2.config.ConfigurationException.<init>(ConfigurationException.java:64) at org.apache.struts2.config.DefaultPropertiesProvider.register(DefaultPropertiesProvider.java:47) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:156) at com.opensymphony.xwork2.config.ConfigurationManager.conditionalReload(ConfigurationManager.java:252) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:61) at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:774) at org.apache.struts2.dispatcher.Dispatcher.cleanup(Dispatcher.java:242) at org.apache.struts2.dispatcher.FilterDispatcher.destroy(FilterDispatcher.java:261) at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:332) at org.apache.catalina.core.StandardContext.filterStop(StandardContext.java:3744) at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4513) at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3093) at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:404) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1309) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590) at java.lang.Thread.run(Thread.java:619)