Failure while deploying simple struts app

14:53:15,474 WARN  [com.opensymphony.xwork2.util.FileManager] (MSC service thread 1-1) Could not create JarEntryRevision for [vfs:/content/StrutsBasics.war/WEB-INF/lib/struts2-core-2.2.3.1]!: java.util.zip.ZipException: error in opening zip file
	at java.util.zip.ZipFile.open(Native Method) [rt.jar:1.6.0_29]
	at java.util.zip.ZipFile.<init>(ZipFile.java:127) [rt.jar:1.6.0_29]
	at java.util.jar.JarFile.<init>(JarFile.java:135) [rt.jar:1.6.0_29]
	at java.util.jar.JarFile.<init>(JarFile.java:99) [rt.jar:1.6.0_29]
	at com.opensymphony.xwork2.util.FileManager$JarEntryRevision.build(FileManager.java:307) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.util.FileManager.loadFile(FileManager.java:145) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.util.FileManager.loadFile(FileManager.java:105) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:898) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:154) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:121) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:179) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66) [xwork-core-2.2.3.1.jar:2.2.3.1]
	at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:380) [struts2-core-2.2.3.1.jar:2.2.3.1]
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:424) [struts2-core-2.2.3.1.jar:2.2.3.1]
	at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:195) [struts2-core-2.2.3.1.jar:2.2.3.1]
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:447) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3269) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3865) [jbossweb-7.0.13.Final.jar:]
	at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:90) [jboss-as-web-7.1.2.Final-SNAPSHOT.jar:7.1.2.Final-SNAPSHOT]