Dears,

we are always face this Error on mid tier

Error. The server encountered an unexpected condition which prevented it from fulfilling the request.

java.lang.NoClassDefFoundError

        at com.remedy.arsys.stubs.SessionData.(Unknown Source)

        at com.remedy.arsys.stubs.SessionData.(Unknown Source)

        at com.remedy.arsys.session.Login.initSessions(Unknown Source)

        at com.remedy.arsys.session.Login.establishSession(Unknown Source)

        at com.remedy.arsys.session.Login.establishSession(Unknown Source)

        at com.remedy.arsys.stubs.GoatServlet.postInternal(Unknown Source)

        at com.remedy.arsys.stubs.GoatHttpServlet.doGet(Unknown Source)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

        at com.newatlanta.servletexec.SERequestDispatcher.forwardServlet(SERequestDispatcher.java:638)

        at com.newatlanta.servletexec.SERequestDispatcher.forward(SERequestDispatcher.java:236)

        at com.newatlanta.servletexec.SERequestDispatcher.internalForward(SERequestDispatcher.java:283)

        at com.newatlanta.servletexec.ApplicationInfo.processApplRequest(ApplicationInfo.java:1889)

        at com.newatlanta.servletexec.ServerHostInfo.processApplRequest(ServerHostInfo.java:937)

        at com.newatlanta.servletexec.ServletExec.ProcessRequest(ServletExec.java:1124)

        at com.newatlanta.servletexec.ServletExec.ProcessRequest(ServletExec.java:1035)

Regards,

Abdulrahman Hejazi