Hi

I am trying to create a session with Hibernate but get a Nullpointerexception all the time. I'm using Eclipse and all of my jar files in order but I still can't create the session! I've been lurking around the web and have noticed that nobody ever creates a session in a JSP, all of the examples I've found are used in servlets - is that the problem? thx

Hibernate version:
3.0.5

Code between sessionFactory.openSession() and session.close():
<%
Session hSession = HibernateSessionFactory.currentSession();
hSession.close();
%>

Full stack trace of any exception that occurs:
exception

org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

java.lang.NullPointerException
tn20.dataaccess.persistence.HibernateSessionFactory.currentSession(HibernateSessionFactory.java:62)
org.apache.jsp.test_jsp._jspService(org.apache.jsp.test_jsp:54)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

Name and version of the database you are using:
Sql 5

HibernateSessionFactory is not a class packaged with Hibernate. Please follow the Getting Started guide here: http://www.hibernate.org/ForumMailingli ... AskForHelp

There is no difference between the code needed to start Hibernate in a Servlet, in a main() method, or in a JSP.

The samples of code that I've been able to run have used SessionFactory, not HibernateSessionFactory.

For example (my code uses Hibernate 2 and there's a slight difference for H3)

Configuration config = new Configuration();
SessionFactory sessionFactory = config.buildSessionFactory();
...

Configuration config = new Configuration();
SessionFactory sessionFactory = config.buildSessionFactory();

this is same for h2 and h3

use eclipse, download wtp and debug NPE