I added a single polyline shapefile and it worked and published fine.  Then, 
when I went to add another store, it wouldn't display the contents of the data 
directory when I browsed for the source, and I noticed that the previously 
published shapefile was erroring out with "noclassdeffounderror" and a 
reference to "nocontent iterator" when I try to preview it.  This last issue is 
no longer happening, but now when I click on Shapefile as my new store type (in 
Add New Store) I receive this error: 

org.apache.wicket.WicketRuntimeException: Can't instantiate page using 
constructor public org.geoserver.web.data.store.NewDataPage() at 
org.apache.wicket.session.DefaultPageFactory.createPage(DefaultPageFactory.java:212)
 at 
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:57)
 at 
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:298)
 at 
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:320)
 at 
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:234)
 at 
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
 at 
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) at 
org.apache.wicket.RequestCycle.steps(RequestCycle.java:1436) at 
org.apache.wicket.RequestCycle.request(RequestCycle.java:545) at 
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:484) at 
org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:138) at 
javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at 
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at 
org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:158)
 at 
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
 at 
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
 at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
 at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
 at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
 at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at 
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:23)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:68)
 at 
org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:192)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:192)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:99)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:99)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:394)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:99)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:192)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:185)
 at 
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:64)
 at 
org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:39)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:49)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:394)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
 at 
org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
 at 
org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
 at 
org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
 at 
org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:185)
 at 
org.springframework.security.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:99)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:71) at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.geoserver.filters.ReverseProxyFilter.doFilter(ReverseProxyFilter.java:183) 
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:41) at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:46) 
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
 at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
 at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at 
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) at 
org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769) at 
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698) at 
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
 at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
 at java.lang.Thread.run(Thread.java:662) Caused by: 
java.lang.reflect.InvocationTargetException at 
sun.reflect.GeneratedConstructorAccessor172.newInstance(Unknown Source) at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at 
org.apache.wicket.session.DefaultPageFactory.createPage(DefaultPageFactory.java:192)
 ... 154 more Caused by: java.lang.NullPointerException at 
org.apache.catalina.loader.WebappClassLoader.findResources(WebappClassLoader.java:1118)
 at java.lang.ClassLoader.getResources(ClassLoader.java:1041) at 
sun.misc.Service$LazyIterator.hasNext(Service.java:249) at 
org.geotools.factory.FactoryRegistry.register(FactoryRegistry.java:819) at 
org.geotools.factory.FactoryRegistry.scanForPlugins(FactoryRegistry.java:768) 
at 
org.geotools.factory.FactoryRegistry.scanForPlugins(FactoryRegistry.java:746) 
at 
org.geotools.coverage.grid.io.GridFormatFinder.scanForPlugins(GridFormatFinder.java:122)
 at 
org.geotools.coverage.grid.io.GridFormatFinder.getAvailableFormats(GridFormatFinder.java:85)
 at 
org.geotools.coverage.grid.io.GridFormatFinder.getFormatArray(GridFormatFinder.java:144)
 at 
org.geoserver.web.data.store.NewDataPage.getAvailableCoverageStores(NewDataPage.java:189)
 at org.geoserver.web.data.store.NewDataPage.<init>(NewDataPage.java:51) ... 
158 more


------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure contains a
definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
http://p.sf.net/sfu/splunk-d2dcopy1
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