[jboss-user] [EJB 3.0] - NullPointerException in jboss calculator example

i'm trying to run the following example and i'm getting NullPointerException http://trailblazer.demo.jboss.com/EJB3Trail/serviceobjects/sfsb/ HTTP Status 500 - -------------------------------------------------------------------------------- type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: Exception in JSP: /my-apps/calculator.jsp:70 67: 68: Past results 69: <% 70: int entries = cal.getStarts().size(); 71: %> 72: 73: Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393) 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:810) sun.reflect.GeneratedMethodAccessor89.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:161) java.security.AccessController.doPrivileged(Native Method) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) sun.reflect.GeneratedMethodAccessor88.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:217) root cause java.lang.NullPointerException org.apache.jsp.my_002dapps.calculator_jsp._jspService(calculator_jsp.java:127) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) 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:810) sun.reflect.GeneratedMethodAccessor89.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:161) java.security.AccessController.doPrivileged(Native Method) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) sun.reflect.GeneratedMethodAccessor88.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:217) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs. -------------------------------------------------------------------------------- Apache Tomcat/5.5.17 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3977111#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...