HTTP Status [500] – [Internal Server Error]


Type Exception Report

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

java.lang.NullPointerException
	edu.cornell.mannlib.vitro.webapp.visualization.personpubcount.PersonPublicationCountQueryRunner.getQueryResult(PersonPublicationCountQueryRunner.java:152)
	edu.cornell.mannlib.vitro.webapp.visualization.personpubcount.PersonPublicationCountQueryRunner.getQueryResult(PersonPublicationCountQueryRunner.java:48)
	edu.cornell.mannlib.vitro.webapp.visualization.personpubcount.PersonPublicationCountRequestHandler.generateDataVisualization(PersonPublicationCountRequestHandler.java:134)
	edu.cornell.mannlib.vitro.webapp.controller.visualization.DataVisualizationController.renderVisualization(DataVisualizationController.java:129)
	edu.cornell.mannlib.vitro.webapp.controller.visualization.DataVisualizationController.doGet(DataVisualizationController.java:74)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	edu.cornell.mannlib.vitro.webapp.controller.VitroHttpServlet.service(VitroHttpServlet.java:71)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	edu.cornell.mannlib.vitro.webapp.filters.PageRoutingFilter.doNonDisplayPage(PageRoutingFilter.java:108)
	edu.cornell.mannlib.vitro.webapp.filters.PageRoutingFilter.doFilter(PageRoutingFilter.java:99)
	edu.cornell.mannlib.vitro.webapp.filters.ClickjackFilter.doFilter(ClickjackFilter.java:31)
	edu.cornell.mannlib.vitro.webapp.filters.RequestModelsPrep.doFilter(RequestModelsPrep.java:56)
	edu.cornell.mannlib.vitro.webapp.filters.URLRewriterFilter.doFilter(URLRewriterFilter.java:38)
	edu.cornell.mannlib.vitro.webapp.filters.JSessionStripFilter.doFilter(JSessionStripFilter.java:61)
	edu.cornell.mannlib.vitro.webapp.filters.CachingResponseFilter.produceBasicResponse(CachingResponseFilter.java:319)
	edu.cornell.mannlib.vitro.webapp.filters.CachingResponseFilter.doFilter(CachingResponseFilter.java:118)
	edu.cornell.mannlib.vitro.webapp.i18n.selection.LocaleSelectionFilter.doFilter(LocaleSelectionFilter.java:62)
	edu.cornell.mannlib.vitro.webapp.filters.CharsetEncodingFilter.doFilter(CharsetEncodingFilter.java:34)
	edu.cornell.mannlib.vitro.webapp.filters.SessionTimeoutLimitingFilter.doFilter(SessionTimeoutLimitingFilter.java:39)
	edu.cornell.mannlib.vitro.webapp.filters.StartupStatusDisplayFilter.doFilter(StartupStatusDisplayFilter.java:64)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/8.5.15