HTTP Status 500 – Internal Server Error


Type Exception Report

Message org.apache.jasper.JasperException: java.lang.NullPointerException

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

Exception

javax.servlet.ServletException: org.apache.jasper.JasperException: java.lang.NullPointerException
	org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:85)

Root Cause

org.apache.jasper.JasperException: java.lang.NullPointerException
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:582)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:498)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:383)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:331)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)

Root Cause

java.lang.NullPointerException
	org.dspace.app.webui.util.JSPManager.showJSP(JSPManager.java:60)
	org.dspace.app.webui.util.JSPManager.showInternalError(JSPManager.java:75)
	org.apache.jsp.index_jsp._jspService(index_jsp.java:204)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:465)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:383)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:331)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)

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


Apache Tomcat/8.5.78