jsp ページに次のエラーがあり、どこを見ればよいかわかりません。
javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.NullPointerException
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
org.apache.jsp.jsp.layout.layout_jsp._jspService(layout_jsp.java:179)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1054)
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:292)
org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:268)
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:329)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
nl.kb.idm.selfservice.Servlet.process(Servlet.java:145)
nl.kb.idm.selfservice.Servlet.doGet(Servlet.java:90)
javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
nl.kb.idm.selfservice.EncodingFilter.doFilter(EncodingFilter.java:42)
nl.kb.idm.selfservice.CrossScriptingFilter.doFilter(CrossScriptingFilter.java:40)
root cause
java.lang.NullPointerException
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
...
誰かが私を正しい方向に向けることができますか?
よろしく、 ジョー