ServletException

[preethi Ayyappan]

Hi,
I am trying to run a servlet program (http://localhost:8080/CallSetup)through tomcat.It is showing the following error:

exception

javax.servlet.ServletException: Servlet execution threw an exception

root cause

java.lang.NoClassDefFoundError: javax/persistence/EntityManagerFactory
com.ericsson.sip.RegistrationBrowserServlet.getRegistrations(RegistrationBrowserServlet.java:63)
com.ericsson.sip.RegistrationBrowserServlet.processRequest(RegistrationBrowserServlet.java:76)
com.ericsson.sip.RegistrationBrowserServlet.doGet(RegistrationBrowserServlet.java:125)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

please assist me to solve this

Thanks.

[Sagar Rohankar]

seems like an ejb-api jar file missing, Look for this jar and paste it into /lib directory ! (i.e in classpath )

[Schandha Ravi]

This is surely not a problem of your servlet. It is related to your persistance logic. Make sure you have necessary jar files, configuration files and any other necessary information in your ear file.