Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Google Groups by Robin Kämpe, 1 year ago
java.lang.NullPointerException: 	at org.nrg.xnat.restlet.actions.AutomationBasedImporter.buildWorkflow(AutomationBasedImporter.java:751)	at org.nrg.xnat.restlet.actions.AutomationBasedImporter.createWorkflowEntry(AutomationBasedImporter.java:393)	at org.nrg.xnat.restlet.actions.AutomationBasedImporter.processUpload(AutomationBasedImporter.java:197)	at org.nrg.xnat.restlet.actions.AutomationBasedImporter.call(AutomationBasedImporter.java:155)	at org.nrg.xnat.restlet.services.Importer.handlePost(Importer.java:221)	at org.restlet.Finder.handle(Finder.java:357)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Router.handle(Router.java:504)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Router.handle(Router.java:504)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Filter.doHandle(Filter.java:150)	at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:130)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:124)	at com.noelios.restlet.application.ApplicationHelper.handle(ApplicationHelper.java:112)	at org.restlet.Application.handle(Application.java:341)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Router.handle(Router.java:504)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Router.handle(Router.java:504)	at org.restlet.Filter.doHandle(Filter.java:150)	at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:130)	at org.restlet.Filter.handle(Filter.java:195)	at org.restlet.Filter.doHandle(Filter.java:150)	at org.restlet.Filter.handle(Filter.java:195)	at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:124)	at org.restlet.Component.handle(Component.java:673)	at org.restlet.Server.handle(Server.java:331)	at com.noelios.restlet.ServerHelper.handle(ServerHelper.java:68)	at com.noelios.restlet.http.HttpServerHelper.handle(HttpServerHelper.java:147)	at com.noelios.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:881)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)	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 net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:200)	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:178)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.nrg.xnat.restlet.util.UpdateExpirationCookie.doFilter(UpdateExpirationCookie.java:37)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.nrg.xnat.security.XnatInitCheckFilter.doFilter(XnatInitCheckFilter.java:51)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:48)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.nrg.xnat.security.XnatBasicAuthenticationFilter.doFilterInternal(XnatBasicAuthenticationFilter.java:143)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:133)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)	at org.nrg.xnat.security.XnatExpiredPasswordFilter.doFilter(XnatExpiredPasswordFilter.java:184)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)