Когда я запускаю приложение, которое использует db40, я получаю следующую ошибку.
Есть идеи? Все выглядит хорошо и Hashtable <String, db4o.Plant> l = db4o.db.getTheDatabase().getPlants(); показывает нормально в NetBeans (все методы были написаны правильно).
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /plante.jsp at line 37
34:
35:
36: <%
37: Hashtable <String, db4o.Plant> l = db4o.db.getTheDatabase().getPlants();
38: int i = 0;
39:
40: Iterator<String> iterator = l.keySet().iterator();
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
root cause
java.lang.NullPointerException
org.apache.jsp.plante_jsp._jspService(plante_jsp.java:89)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.