java.lang.NullPointerException
	at com.silverpeas.gallery.control.GallerySessionController.addNbMedia(GallerySessionController.java:1304)
	at com.silverpeas.gallery.servlets.GalleryRequestRouter.getDestination(GalleryRequestRouter.java:152)
	at com.silverpeas.gallery.servlets.GalleryRequestRouter.getDestination(GalleryRequestRouter.java:84)
	at com.stratelia.silverpeas.peasCore.servlets.ComponentRequestRouter.computeDestination(ComponentRequestRouter.java:247)
	at com.stratelia.silverpeas.peasCore.servlets.ComponentRequestRouter.doPost(ComponentRequestRouter.java:133)
	at com.stratelia.silverpeas.peasCore.servlets.ComponentRequestRouter.doGet(ComponentRequestRouter.java:144)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
	at com.stratelia.silverpeas.peasCore.servlets.SilverpeasHttpServlet.service(SilverpeasHttpServlet.java:49)
	at com.stratelia.silverpeas.peasCore.servlets.SilverpeasAuthenticatedHttpServlet.service(SilverpeasAuthenticatedHttpServlet.java:81)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:324)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at com.silverpeas.whitePages.filters.ComponentRequestRouterFilter.doFilter(ComponentRequestRouterFilter.java:74)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.silverpeas.web.filter.MassiveWebSecurityFilter.doFilter(MassiveWebSecurityFilter.java:175)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.silverpeas.web.filter.InternetExplorerAntiCompatibilityFilter.doFilter(InternetExplorerAntiCompatibilityFilter.java:48)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.silverpeas.web.token.SessionSynchronizerTokenValidator.doFilter(SessionSynchronizerTokenValidator.java:103)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.silverpeas.web.filter.MessageFilter.doFilter(MessageFilter.java:74)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.silverpeas.web.filter.HttpServletRequestDecoration.doFilter(HttpServletRequestDecoration.java:60)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
	at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285)
	at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88)
	at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951)
	at java.lang.Thread.run(Thread.java:662)