Estado HTTP 500 - java.lang.NullPointerException

type Informe de Excepción

mensaje java.lang.NullPointerException

descripción El servidor encontró un error interno que hizo que no pudiera rellenar este requerimiento.

excepción

javax.servlet.ServletException: java.lang.NullPointerException
	org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:520)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1083)
	org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:295)
	org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:396)
	org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:347)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:232)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)

causa raíz

java.lang.NullPointerException

nota La traza completa de la causa de este error se encuentra en los archivos de diario de Apache Tomcat/8.5.0.


Apache Tomcat/8.5.0