[19-02-22 12:53:40.327] SquashTM - 9436 ERROR [http-nio-8080-exec-5] [ServletWebRequest: uri=/squash/test-cases/importer/xls;client=127.0.0.1;session=E4AD5B526CE23ED344DF5F05FC4CA01A;user=sbenhamza] --- org.squashtest.tm.web.internal.exceptionresolver.HandlerExceptionLogger: An exception occured while processing request  : http://127.0.0.1:8080/squash/test-cases/importer/xls?upload-ticket=0&_csrf=4a7a96a8-f74a-49f8-a601-706aa17e3190
org.springframework.orm.jpa.JpaSystemException: Error while indexing in Hibernate Search (before transaction completion); nested exception is org.hibernate.HibernateException: Error while indexing in Hibernate Search (before transaction completion)
	at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:314) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:225) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:540) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:746) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:714) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:532) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:304) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.squashtest.tm.service.internal.testcase.TestCaseLibraryNavigationServiceImpl$$EnhancerBySpringCGLIB$$471a95b9.performImportExcelTestCase(<generated>) ~[tm.service-1.19.0.RELEASE.jar!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController$2.execute(TestCaseImportController.java:201) ~[classes!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController$2.execute(TestCaseImportController.java:1) ~[classes!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController.importWorkbook(TestCaseImportController.java:131) ~[classes!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController.importExcelWorkbook(TestCaseImportController.java:198) ~[classes!/:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_191]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) [spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) [spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) [spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877) [spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) [javax.servlet-api-3.1.0.jar!/:3.1.0]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) [spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api-3.1.0.jar!/:3.1.0]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158) [spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126) [spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111) [spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.squashtest.tm.web.internal.filter.UserConcurrentRequestLockFilter.handleWriteRequest(UserConcurrentRequestLockFilter.java:150) [classes!/:?]
	at org.squashtest.tm.web.internal.filter.UserConcurrentRequestLockFilter.handleRequest(UserConcurrentRequestLockFilter.java:102) [classes!/:?]
	at org.squashtest.tm.web.internal.filter.UserConcurrentRequestLockFilter.doFilter(UserConcurrentRequestLockFilter.java:78) [classes!/:?]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.squashtest.tm.web.internal.filter.AjaxEmptyResponseFilter.doFilterInternal(AjaxEmptyResponseFilter.java:47) [classes!/:?]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.squashtest.tm.web.internal.filter.UserCredentialsCachePersistenceFilter.doFilterInternal(UserCredentialsCachePersistenceFilter.java:90) [classes!/:?]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.multipart.support.MultipartFilter.doFilterInternal(MultipartFilter.java:123) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.squashtest.tm.web.internal.filter.MultipartFilterExceptionAware.doFilterInternal(MultipartFilterExceptionAware.java:67) [classes!/:?]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) [spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:124) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) [spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_191]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_191]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]
Caused by: org.hibernate.HibernateException: Error while indexing in Hibernate Search (before transaction completion)
	at org.hibernate.search.event.impl.EventSourceTransactionContext$DelegateToSynchronizationOnBeforeTx.doBeforeTransactionCompletion(EventSourceTransactionContext.java:173) ~[hibernate-search-orm-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:935) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.spi.ActionQueue.beforeTransactionCompletion(ActionQueue.java:510) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2414) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:156) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:536) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	... 135 more
Caused by: org.hibernate.search.bridge.BridgeException: Exception while calling bridge#set
	entity class: org.squashtest.tm.domain.testcase.TestCase
	entity property path: automatable
	document field name: automatable
	field bridge: String2FieldBridgeAdaptor [stringBridge=org.squashtest.tm.domain.search.LevelEnumBridge@9d61ceb]
	at org.hibernate.search.bridge.util.impl.ContextualExceptionBridgeHelper.buildBridgeException(ContextualExceptionBridgeHelper.java:104) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.bridge.util.impl.ContextualExceptionBridgeHelper$OneWayConversionContextImpl.set(ContextualExceptionBridgeHelper.java:138) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFieldsForProperties(DocumentBuilderIndexedEntity.java:669) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFields(DocumentBuilderIndexedEntity.java:466) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.getDocument(DocumentBuilderIndexedEntity.java:402) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.createAddWork(DocumentBuilderIndexedEntity.java:299) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.addWorkToQueue(DocumentBuilderIndexedEntity.java:241) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan$PerEntityWork.enqueueLuceneWork(WorkPlan.java:560) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan$PerClassWork.enqueueLuceneWork(WorkPlan.java:322) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan.getPlannedLuceneWork(WorkPlan.java:188) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.WorkQueue.prepareWorkPlan(WorkQueue.java:115) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.BatchedQueueingProcessor.prepareWorks(BatchedQueueingProcessor.java:55) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.PostTransactionWorkQueueSynchronization.beforeCompletion(PostTransactionWorkQueueSynchronization.java:67) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.event.impl.EventSourceTransactionContext$DelegateToSynchronizationOnBeforeTx.doBeforeTransactionCompletion(EventSourceTransactionContext.java:170) ~[hibernate-search-orm-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:935) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.spi.ActionQueue.beforeTransactionCompletion(ActionQueue.java:510) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2414) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:156) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:536) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	... 135 more
Caused by: java.lang.NullPointerException
	at org.squashtest.tm.domain.search.LevelEnumBridge.objectToString(LevelEnumBridge.java:42) ~[tm.domain-1.19.0.RELEASE.jar!/:?]
	at org.hibernate.search.bridge.util.impl.String2FieldBridgeAdaptor.set(String2FieldBridgeAdaptor.java:31) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.bridge.util.impl.ContextualExceptionBridgeHelper$OneWayConversionContextImpl.set(ContextualExceptionBridgeHelper.java:135) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFieldsForProperties(DocumentBuilderIndexedEntity.java:669) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFields(DocumentBuilderIndexedEntity.java:466) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.getDocument(DocumentBuilderIndexedEntity.java:402) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.createAddWork(DocumentBuilderIndexedEntity.java:299) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.addWorkToQueue(DocumentBuilderIndexedEntity.java:241) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan$PerEntityWork.enqueueLuceneWork(WorkPlan.java:560) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan$PerClassWork.enqueueLuceneWork(WorkPlan.java:322) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan.getPlannedLuceneWork(WorkPlan.java:188) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.WorkQueue.prepareWorkPlan(WorkQueue.java:115) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.BatchedQueueingProcessor.prepareWorks(BatchedQueueingProcessor.java:55) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.PostTransactionWorkQueueSynchronization.beforeCompletion(PostTransactionWorkQueueSynchronization.java:67) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.event.impl.EventSourceTransactionContext$DelegateToSynchronizationOnBeforeTx.doBeforeTransactionCompletion(EventSourceTransactionContext.java:170) ~[hibernate-search-orm-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:935) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.spi.ActionQueue.beforeTransactionCompletion(ActionQueue.java:510) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2414) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:156) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:536) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	... 135 more
[19-02-22 12:53:40.364] SquashTM - 9436 ERROR [http-nio-8080-exec-5] [] --- org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/squash].[dispatcherServlet]: Servlet.service() for servlet [dispatcherServlet] in context with path [/squash] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: Error while indexing in Hibernate Search (before transaction completion); nested exception is org.hibernate.HibernateException: Error while indexing in Hibernate Search (before transaction completion)] with root cause
java.lang.NullPointerException: null
	at org.squashtest.tm.domain.search.LevelEnumBridge.objectToString(LevelEnumBridge.java:42) ~[tm.domain-1.19.0.RELEASE.jar!/:?]
	at org.hibernate.search.bridge.util.impl.String2FieldBridgeAdaptor.set(String2FieldBridgeAdaptor.java:31) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.bridge.util.impl.ContextualExceptionBridgeHelper$OneWayConversionContextImpl.set(ContextualExceptionBridgeHelper.java:135) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFieldsForProperties(DocumentBuilderIndexedEntity.java:669) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.buildDocumentFields(DocumentBuilderIndexedEntity.java:466) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.getDocument(DocumentBuilderIndexedEntity.java:402) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.createAddWork(DocumentBuilderIndexedEntity.java:299) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.spi.DocumentBuilderIndexedEntity.addWorkToQueue(DocumentBuilderIndexedEntity.java:241) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan$PerEntityWork.enqueueLuceneWork(WorkPlan.java:560) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan$PerClassWork.enqueueLuceneWork(WorkPlan.java:322) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.engine.impl.WorkPlan.getPlannedLuceneWork(WorkPlan.java:188) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.WorkQueue.prepareWorkPlan(WorkQueue.java:115) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.BatchedQueueingProcessor.prepareWorks(BatchedQueueingProcessor.java:55) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.backend.impl.PostTransactionWorkQueueSynchronization.beforeCompletion(PostTransactionWorkQueueSynchronization.java:67) ~[hibernate-search-engine-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.search.event.impl.EventSourceTransactionContext$DelegateToSynchronizationOnBeforeTx.doBeforeTransactionCompletion(EventSourceTransactionContext.java:170) ~[hibernate-search-orm-5.9.2.Final.jar!/:5.9.2.Final]
	at org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:935) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.spi.ActionQueue.beforeTransactionCompletion(ActionQueue.java:510) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2414) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:156) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68) ~[hibernate-core-5.2.12.Final.jar!/:5.2.12.Final]
	at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:536) ~[spring-orm-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:746) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:714) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:532) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:304) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) ~[spring-tx-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.squashtest.tm.service.internal.testcase.TestCaseLibraryNavigationServiceImpl$$EnhancerBySpringCGLIB$$471a95b9.performImportExcelTestCase(<generated>) ~[tm.service-1.19.0.RELEASE.jar!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController$2.execute(TestCaseImportController.java:201) ~[classes!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController$2.execute(TestCaseImportController.java:1) ~[classes!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController.importWorkbook(TestCaseImportController.java:131) ~[classes!/:?]
	at org.squashtest.tm.web.internal.controller.testcase.importer.TestCaseImportController.importExcelWorkbook(TestCaseImportController.java:198) ~[classes!/:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_191]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) ~[javax.servlet-api-3.1.0.jar!/:3.1.0]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[javax.servlet-api-3.1.0.jar!/:3.1.0]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158) ~[spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126) ~[spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111) ~[spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.squashtest.tm.web.internal.filter.UserConcurrentRequestLockFilter.handleWriteRequest(UserConcurrentRequestLockFilter.java:150) ~[classes!/:?]
	at org.squashtest.tm.web.internal.filter.UserConcurrentRequestLockFilter.handleRequest(UserConcurrentRequestLockFilter.java:102) ~[classes!/:?]
	at org.squashtest.tm.web.internal.filter.UserConcurrentRequestLockFilter.doFilter(UserConcurrentRequestLockFilter.java:78) ~[classes!/:?]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.squashtest.tm.web.internal.filter.AjaxEmptyResponseFilter.doFilterInternal(AjaxEmptyResponseFilter.java:47) ~[classes!/:?]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.squashtest.tm.web.internal.filter.UserCredentialsCachePersistenceFilter.doFilterInternal(UserCredentialsCachePersistenceFilter.java:90) ~[classes!/:?]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.multipart.support.MultipartFilter.doFilterInternal(MultipartFilter.java:123) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.squashtest.tm.web.internal.filter.MultipartFilterExceptionAware.doFilterInternal(MultipartFilterExceptionAware.java:67) ~[classes!/:?]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) ~[spring-boot-actuator-2.0.3.RELEASE.jar!/:2.0.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:124) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.0.6.RELEASE.jar!/:5.0.6.RELEASE]
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.7.RELEASE.jar!/:5.0.7.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_191]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_191]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar!/:8.5.31]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]
