Hi all...

[Siva Surya Kumar V]

Hi.....       I am very very very new to JSP.     When i am trying to open http://localhost:8080/myjsp.jsp  its giving the following error:     500 Internal Server Error   java.lang.NullPointerException         at com.livesoftware.jrun.plugins.jsp.JSP.PopulateUserTaglets(Compiled Code)         at com.livesoftware.jrun.plugins.jsp.JSP.getAllTaglets(JSP.java)         at com.livesoftware.jrun.plugins.jsp.JSPCore.buildServletCode(JSPCore.java)         at com.livesoftware.jrun.plugins.jsp.JSPCore.getCheckable(JSPCore.java)         at com.livesoftware.jrun.plugins.jsp.JSPCore.getPage(JSPCore.java)         at com.livesoftware.jrun.plugins.jsp.JSP.callPage(JSP.java)         at com.livesoftware.jrun.plugins.jsp.JSP.service(JSP.java)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:611)         at com.livesoftware.jrun.JRun.runServlet(Compiled Code)         at com.livesoftware.jrun.JRunGeneric.handleConnection(JRunGeneric.java)         at com.livesoftware.jrun.service.web.JRunWebServiceHandler.handleOutput(JRunWebServiceHandler.java)         at com.livesoftware.jrun.service.web.JRunWebServiceHandler.handleRequest(Compiled Code)         at com.livesoftware.jrun.service.ThreadConfigHandler.run(Compiled Code)   I dont know where is the problem ??? Please help me and reply ASAP.   - Surya