type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 java.util.ArrayList.RangeCheck(ArrayList.java:546) java.util.ArrayList.get(ArrayList.java:321) java112.project4.StartupServlet.doGet(StartupServlet.java:87) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419) org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.