Session variable and script error

Hello;
I am still writting this script that turns a bg sound on and
aff for the whole site to remember. I have a good start on this
code, but I am running into issues.
1. I am trying to use a checkbox to make the selection, and
when it is clicked, it will function without using a submit button,
the java script I am using isn't doing the job allowing the
checkbox to act as a link so to speak.
2. I need to make this script into a session variable. So
that when the decision is made, the site will remember it.
3. there might be a problem in my IF statement.
Can someone please help me out? I am attaching the code. It
is using a DB that has a yes/no box in the table this sound code is
accessing.
Thank you.
Phoenix

A Quess...
Remove the OnClick in the form
<form onClick="category.submit();">
Place it in the input type?
<input type="checkbox"
onClick="category.submit();">

Similar Messages

Session variable and initialization block issues

We are using OBIEE 10.1.3.3 and utilizes built in security features. (No LDAP or other single sign on). The user or group names are not stored in any external table. I have a need to supplement Group info of the user to the usage tracking we implemented recently as the NQ_LOGIN_GROUP.RESP column contains username instead of group name. So I created a session variable and associated with a new initialization block and also had a junk default value set to the variable. In the initialization block, I wrote the following query and as a result it inserted correct values into the table when the TEST button was clicked from the initialization block form.
insert into stra_login_data (username, groupname, login_time) values ('VALUEOF(NQ_SESSION.USER)', 'VALUEOF(NQ_SESSION.GROUP)', SYSDATE)
My intention is to make this execute whenever any user logs on. The nqserver.log reports the following error and it doesn?t insert values into the table.
[nQSError: 13011] Query for Initialization Block 'SET_USER_LOGIN_BLOCK' has failed.
[nQSError: 23006] The session variable, NQ_SESSION.USER, has no value definition.
[nQSError: 13011] Query for Initialization Block 'SET_USER_LOGIN_BLOCK' has failed.
[nQSError: 23006] The session variable, NQ_SESSION.GROUP, has no value definition.
When I changed the insert statement as below, this does get populated whenever someone logs in. But I need the values of GROUP associated with the user as defined in the repository.
insert into stra_login_data (username, groupname, login_time) values ('TEST_USER', TEST_GROUP', SYSDATE)
Could someone help me out! As I mentioned above, I need the GROUP info into the usage tracking. So, if there is another successful approach, could you please share?
Thank you
Amin

Hi Amin,
See [this thread|http://forums.oracle.com/forums/thread.jspa?messageID=3376946&#3376946]. You can't use the GROUP session variable in an Init Block unless it has been seeded from an Init Block first. There isn't an easy solution for what you want, but here are some options:
1) Create a copy of your User => Groups assignments in your RPD in an table so you can use it in your Usage Tracking Subject Area. But this means you will have to replicate the changes in two places so it's not a good solution.
2) As the GROUP session variable is populated when you login you could theoretically use it a Dashboard and pass it a parameter to write the value to the database. But as I am not sure how can you make fire only once when the user logins it sounds like a bad idea.
3) Move your User => Groups assignments from your RPD to a DB table. Use OBIEE Write Back or something like Oracle APEX to maintain them.
I think 3) is the best solution to be honest.

Question about session variables and binding

Hi All,
I'm a newbie with Application Express. I've gone through several tutorials and a book, and now I'm actually getting started with apex. My first adventure is a tiny little form, where all you do is fill it out and it sends an email. Pretty simple.
And, i have it working just fine - but I have a question about something I don't quite understand. Basically, I am generating the email text in a page process. And some of the form fields work fine if i reference them as *:ACCT_NAME*, but some give me the dreaded "not all variables bound" error. For the ones that give me the error, I can reference them like V('ACCT_NAME').
So, as a newbie, I'm a little confused. When is it appropriate to use the V function, and when it is appropriate to use binding? Why would one of the fields work with binding but not another from the same form?
Thanks for any clarification you can offer,
Lisa

Lisa,
A bind variable is a place holder variable available in an environment.It is used quite frequently(outside Apex Context) in SQL and PLSQL scripts and especially in Dynamic SQL statements.Many times using a bind variable gives better performance. In the Apex environment,page items and many other variables related to the session are available as bind variables and hence their value can be referred in SQL,PLSQL contexts as :VARIABLE_NAME.
Now V() function is an apex specific function which returns the value of an apex session variable outside the apex environment. So as Machaan pointed out, it is used in
procedures and triggers that gets called from within an apex session. This is required since the bind variables themselves are not directly available in the SQL environment but their values from the corresponding session can be accessed by this apex built-in function.
The length of any Bind variable name is limited to 30 characters, this is a limitation inherited from Oracle SQL itself and hence session variables(page or application items) whose name has a length which exceeds 30 characters cannot be used as the :ITEM_NAME format. In such cases you would have to use the v() method again. This might be happening in your case.

Session variable and Tracking in Header file

Is there a way for me to keep track of the session and use a variable in my Header to pass around for this?
I have a login.jsp, validate_login.jsp and other jsp's that have the same header file. Instead of me using the same code in all of the jsp's I thought it would be easier to put it in the header Please look at the example code below:
// validate_login.jsp is passed username and password from the login.jsp.
// validate_login then calls the logIn method in my Session class.
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="uom.edu.rd.session.Session"%>
<html>
<head><title>Validate Login</title></head>
<body>
<jsp:include page="header.jsp" />
<%
    String username = request.getParameter("username");
    String password = request.getParameter("password");
    this_session.logIn(username, password);
    boolean b = this_session.getLoggedIn();
%>
==================================================================
// The logIn method in Session class
public void logIn(String userName, String password) {
         Connection con = null;
         Statement stmt = null;
         ResultSet rs = null;
         try{
            con = db.getConnection();
             stmt = con.createStatement();
             String sql = "SELECT * FROM RD_USER WHERE USER_NAME = '" + userName +"' AND USER_PASSWORD = '" + password + "'";
              rs = stmt.executeQuery(sql);
              if(rs.next()){
                   loggedIn=true;
              }else{
                   loggedIn=false;
         catch(Exception e){
              // If something goes wrong, make sure
              // the user is not logged in.
              loggedIn=false;
          }finally{
              try{
                   rs.close();
                   stmt.close();
                   con.close();
          }catch(Exception e){
     * Log the user out.
    public void logOut() {
         loggedIn = false;
     * Get the login status.
     * @return boolean
    public boolean getLoggedIn() {
         return loggedIn;
==================================================================
// and this is part of my header.jsp
<%@page import="uom.edu.rd.session.Session"%>
<%
Session this_session = Session.findSession(request);
if ( this_session==null ) {
      /* Now, instead of redirecting, create a new Session
       * object and initialize it.
      this_session = new Session();
      this_session.makeSession(request);
      this_session.createQueryBuilder(config);
%>
// This is the part I would like to pass around

<%
    boolean loggedIn = this_session.getLoggedIn();
        if (loggedIn == false)
        { %>
            <A STYLE="color:#FFFFFF;text-decoration:none;" HREF="./login.jsp"><FONT COLOR="#FFFFFF">LOG IN</font></a> <FONT COLOR="#FFFFFF"></font>
    <% } else { %>
            <A STYLE="color:#FFFFFF;text-decoration:none;" HREF="./logout.jsp"><FONT COLOR="#FFFFFF">LOG OUT</font></a> <FONT COLOR="#FFFFFF"></font>
     <% }
%>
// so if you are logged in then you are able to view certain things on the jsp's if you are not logged in
// then of course you cannot. I want to pass around this loggedIn variable to all the jsp's
// after it checks loggIn Status for each page I have tried running this but I keep getting an error: cannot resolve symbol this_session

Use <%@ include file="header.jsp" %> instead

Missing session variables and multiple CFID/CFTOKEN

We are using ColdFusion 9.0.1 and have recently started to experience some sporadic behavior in our applications. These applications have worked without error for over 6+ years and have not been modified during this time.
Over the past couple of weeks, we have been receiving calls in regards to users not being able to login and receiving errors when performing various actions. We have put troubleshooting measures in place that display values when this occurs.
We have noticed that when the errors occur, there are multiple CFID/CFTOKEN COOKIE values. Additionally, session variables are being dropped (during simple tasks such as going from one screen to the next). These errors do not occur for the majority of users and have primarily occurred in Internet Explorer, but we have had some instances in other browsers. In most instances, if the user switches browsers, the same application works fine for them.
In one particular case, we have a <cfif> tag in the application.cfm file that checks for “session.user_id”. If it doesn’t exist, the user is directed to a login page using the <cflocation> tag. When experiencing the problem, users are continuously going back to the login screen because the system is saying that the session variable does not exist.
When working with one user who was experiencing this problem, we were able to remedy the problem by adding “addtoken=’yes’” to the cflocation tag. ** We do not prefer to do this for security reasons.
Rather than go through each application and try to “band-aid” each instance that occurs, can anybody offer some suggestions on why this behavior recently began and how we may be able to globally address it?

My immediate guess is that there is faulty logic in the code that updates the value of session.user_id. Apparently, one of the following scenarios might be happening.
Coldfusion creates a session, X, say. Session.user_id is as yet undefined, so ColdFusion cflocates the user to the login page. The user logs in, still within session X. His session.user_id is set.
Suppose, for whatever reason (and I know of at least two), the session drops. The user's very next request will make ColdFusion to create a new session, Y, say. Under session Y, the variable session.user_id, which corresponded to session X, will no longer exist. So ColdFusion cflocates the user to the login page. This cycle will of course repeat if left uncorrected.
Another possible scenario is that the variable session.user_id is not set at all, or is set in the context of a new session. I am assuming that the login page is a form. Then login validation occurs at the action page of the form. Presumably the variable session.user_id is set at this action page. If so, then perhaps ColdFusion fails to set this variable, or a new session is created as the request goes from the login-form page to the action page.
The 2 main reasons why a session drops are 1) it times out, 2) a new request starts a new session. Hence the following suggestions.
1) Is your sessionTimeout value low, say, just a few minutes? If so, increase it to 20 minutes.
2) Remember that the default behaviour of ColdFusion is to start a new session at every request. Use cflogin and cfloginuser together with loginStorage="session". Cflogin executes only if there is no logged in user, irrespective of the session. Therefore, getAuthUser() is a better authentication test than session.user_id.
3) Use Application.cfc in place of Application.cfm. In particular, the CFC offers you more fine-grained control over the beginning and end of sessions.

Help building an object, setting it in a session variable and casting

Hi all,
I have a problem that I hope you can help me with. The application I am working on has a simple MVC design architecture. The problem occurs when a request is made from the application to the controller servlet. The controller servlet looks at the request type and delegates the processing to the appropriate action and model classes. The model class returns an object of a specific class type that is put into the session variable. This session variable is then cast to the appropriate class type in the jsp that renders that class. The problem is that this particular class type has an array of another class type. The array is filled in the class constructor, but is null when returned to the controller.
At run time when accessing the array I get a NullPointerException error. I can't seem to figure this one out. Any help is greatly appreciated.
Here's the code:
Controller DoPost method. The 'Action' objects are defined and initialized in the init() method.
        public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException{
                try {
                        HttpSession session = request.getSession();
                        MemberProfileTbl memProf = (MemberProfileTbl)session.getAttribute("Member");
                        RequestDispatcher rd;
                        if (!validateUser(memProf, session)){
                                session.setAttribute("LoginStatus", "Session Expired");
                                rd = getServletContext().getRequestDispatcher("/LoginFail.jsp");
                                rd.forward(request, response);
                                return;
                        String act = getAction(request);
                        Action action = (Action)actions.get(act);
                        Object result = null;
                        try {
                                result = action.perform(request, memProf);
                        }catch (NullPointerException npx) {
                                npx.printStackTrace();
                        session.setAttribute("currObject", result);
                        rd = getServletContext().getRequestDispatcher("/test/MemberConsole.jsp");
                        rd.forward(request, response);
                catch (Exception ex){
                        ex.printStackTrace();
Action class:
        package accolo.actions;
        import javax.servlet.http.*;
        import accolo.model .*;
        import accolo.view.*;
        import accolo.db.MemberProfileTbl;
        public class ChangeMainView extends Action {
                public String getName() {return "changeMainView";}
                public Object perform(HttpServletRequest request, MemberProfileTbl memProf)
                        throws Exception, ClassNotFoundException, InstantiationException, IllegalAccessException{
                        Object result;
                        HMMainView hmMain = new HMMainView(memProf.email);
                       result = hmMain;
                       return result;
HMMainView.java class
public class HMMainView
        private HMMainViewJob[] jobs;
        public String test;
        public HMMainView(String email)
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           JobTblDao jobTblDao = new JobTblDao();
           test = "test in constructor";
           try{
             JobTbl[] hmJobs = jobTblDao.getHMOpenJobs(email);
             for(int j = 0; j < hmJobs.length; j++){
                        this.jobs[j].jobTitle = hmJobs[j].optionalTitle;
                        this.jobs[j].city = hmJobs[j].city;
                        this.jobs[j].state = hmJobsBean.getState(hmJobs[j].zipCode);
                        Hashtable counts = hmJobsBean.getJSCountsByStatus(hmJobs[j].jobId);
                        this.jobs[j].unranked = (String)counts.get("CANUNRANKED");
                        this.jobs[j].interviews = (String)counts.get("HMRI");
                        this.jobs[j].ranked = (String)counts.get("CANRANKED");
                        long closed = Long.parseLong((String)counts.get("HMRNI"));
                        closed += Long.parseLong((String)counts.get("HMCH"));
                        closed += Long.parseLong((String)counts.get("HMNH"));
                        this.jobs[j].closed = Long.toString(closed);
            }catch(Exception ex){
                ex.printStackTrace();
        public HMMainViewJob[] getJobs(){ return jobs; }
HMMainViewJob.java class
package accolo.model;
public class HMMainViewJob
        public long jobId;
        public String jobTitle;
        public String status_id;
        public String city;
        public String state;
        public String unranked;
        public String interviews;
        public String ranked;
        public String closed;
        public HMMainViewJob()
Snippet of JSP that uses the code
Object result = session.getAttribute("currObject");
if (result != null){
    String className = result.getClass().getName();
    if (className.equals("accolo.model.HMMainView")){
           header = "HM/HMConsoleHeader.jsp";
           subNav = "HM/HMConsoleSubNav.jsp";
           user = "HM/HMConsoleUser.jsp";
           left = "HM/HMConsoleLeft.jsp";
//           body = "HM/HMConsoleHome.jsp";
           HMMainView hmMain = (HMMainView) result;
           HMMainViewJob[] jobs = hmMain.getJobs();
          for (int i = 0; i < jobs.length; i++){
%>
                Jobs: <%=jobs.jobTitle%>
<%

I have not run this through a debugger yet. I don't have immediate access to a debugger to run it through, most of the development is simply done in vi. I was hoping any problem in the code would jump out at someone. I've been staring at it too long.
I'll try to get a debugger set up.
Thanks

Very Slow and Script Errors

Contribute 6.5 is very slow to publish new content to our site www.mrii.ie, even bringing up a page for editing is slow. So far I have:
Tested the the FTP settings using passive and active connections.
Using an external FTP program, downloading from the site is very quick 2. I checked all the file permissions on the server and they are correct. In fact Contribute will publish the changes eventually, just very slowly prior to the actual upload which seems pretty quick.
I also used a plain page with a small amount of text and again the pre-processing seems slow.
I removed the temporary sites and configuration folders and still no change.
I created a new connection.
As an aside, how do I disable script errors in the Contribute browser window?

OK, found it. This fixed my performance issue.
https://discussions.apple.com/thread/2536941
This fixed my Genius issue:
Turned Genius off
Closed iTunes
Launch Safari
Preferences/Security/Cookies
delete the apple.com entries

I'm getting Constant "Not Responding " and "Script Error"

For a while now I have been getting a "Mozilla Firefox Not Responding " message and Firefox will slow down and keep not working, I'll also get a "Script Error" pop up box that keep reappearing around when the "Not Responding" messages happen. I have tried reinstalling Firefox but it hasn't helped. I don't have any extensions enabled and I have tried going to the site http://kb.mozillazine.org/Unresponsive_Script_Warning but cannot understand what it is suggesting for me to do. I am not very good with computers and need some actual help to get rid of these unresponsive scripts and stop Firefox from not responding. It is happening more and more frequently and is a big problem as I work from my computer.

I am having the same problem, and from what I can understand from the suggested articles, they offer the opposite of what I want.
The "Firefox hangs" and other articles seem to assume that you want the script to respond. I don't.
What I want is for a script to be given a limited amount of time to respond. If it does not respond in that time, it is stopped automatically. No slow down, no pop-up, no manual decision. Just make the script stop before it can suck up so much processing power that nothing else can happen.
My problem is that the sources of the unresponsive scripts are Hotmail and Gmail almost all the time. So I can't just tell the sites that they can't run scripts. But they will have the "script stopped responding" issue even when I am not using them, and I will have to figure out that this has happened because my computer stops functioning, and even then I have to visit each website to figure out which one is causing the problem. And the computer remains slow for several minutes after stopping the script.
As far as I am concerned, there is nothing that Hotmail or Gmail could be doing that requires the full attention of my computer and myself. I would rather have the webpage just close then let the script suck up all my power. So I am not in need of something that will let scripts have more time to work, I need something that will limit the time scripts have to work before they are stopped.
However, the email programs seem to work fine after the script is stopped, so whatever was going on can't be very important.
I have tried the recommended reset of firefox, remove the extensions, script-blocker add-ons. But the problem is specifically these email programs and using them is unavoidable.
So what I am looking for is a way to shut down a script before it becomes a problem.
Thanks for any help.

Firefox 13.0.1 and script error and crash

FF keeps crashing - script errors on pretty much every site. Reset FF and it does no good. Add ons disabled, all extensions updated. This just started happening within the past few days. No viruses. HELP!!!!!!!!!

''Can this be forwarded to the Mozilla bug team, or some other technical support?''
Hi tuatha, you can file a new bug, but I don't think there is enough information to relate your problem to a specific cause. As you can imagine, most people are not tormented by script errors. We're trying to track it down to something about your system or your customization of Firefox.
Could you try creating a blank new Firefox settings folder (AKA a Firefox profile)? In addition to bypassing current add-ons and custom settings, it should have completely fresh settings databases and a fresh cache folder.
Close Firefox and start up in the Profile Manager by entering the following in the Search box on the Start menu and pressing Enter:
<br>firefox.exe -p
Your currently active profile is selected. Don't delete anything, just create a new profile and start Firefox in that new profile. Any time you want to switch profiles, close Firefox and return to this dialog. More information on the Profile Manager: [[Managing profiles]].
Do the errors persist in the new profile?

Uploading and script error

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Hi Venkatesh,
I am testing SU01 t.code using ECATT.I have used TCD recording.I create script and test the script.I have complted parameterisation.When i'm trying to test the file it shows the follwing log In ecatt.
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The file have diffrent userids emails firstname lastname.
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SAP IAC Iview and script error

I am using the SAP IAC script to start an SRM 4.0 system via SSO.
SSO works fine, but after the overview-page appears, none of the menu items/links inside SRM works and I can see javascript errors in the page log.
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As usual, SAP sees it as strategic feature rather than a bummer:
In the world of ESA and ERP 2005, you don't use full applications as provided with bbpstart, but rather a series of "atomic" transactions, and together with the new feature of "Guided Procedures" in EP 7.0, you can tailor your own, personal set of transactions for your users with your own workflow.
While this is not a bad idea, it is a lot of work and the "One Shot Solution" like bbpstart should be an option too.
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Javacard and session variables

Hello,
I'm trying to find a reasonable Javacard technique to handle "session variables" that must be kept between successive APDUs, but must be re-initialized on each card reset (and/or each time the application is selected); e.g. currently selected file, currently selected record, current session key, has the user PIN been verified...
Such variables are best held in RAM, since changing permanent (EEPROM or Flash) variables is so slow (and in the long run limiting the operational life of the card).
Examples in the Java Card Kit 2.2.2 (e.g. JavaPurseCrypto.java) manipulate session variables in the following way:
1) The programmers group session variables of basic type (Short, Byte, Boolean) according to type, and map each such variable at an explicit index of a vector (one per basic type used as session variable).
2) At install() time, each such vector, and each vector session variable, is explicitly allocated as a transient object, and this object is stored in a field of the application (in permanent memory), where it remains across resets.
3) Each use of a session variable of basic type is explicitly translated by the programmer into using the appropriately numbered element of the appropriate vector.
4) Vector session variables require no further syntactic juggling, but eat up an object descriptor worth of permanent data memory (EEPROM or Flash), and a function call + object affectation worth of applet-storage memory (EEPROM, Flash or ROM).
The preparatory phase goes:
public class MyApp extends Applet {
// transientShorts array indices
    final static byte      TN_IX = 0;
    final static byte      NEW_BALANCE_IX=(byte)TN_IX+1;
    final static byte      CURRENT_BALANCE_IX=(byte)NEW_BALANCE_IX+1;
    final static byte      AMOUNT_IX=(byte)CURRENT_BALANCE_IX+1;
    final static byte   TRANSACTION_TYPE_IX=(byte)AMOUNT_IX+1;
    final static byte     SELECTED_FILE_IX=(byte)TRANSACTION_TYPE_IX+1;
    final static byte   NUM_TRANSIENT_SHORTS=(byte)SELECTED_FILE_IX+1;
// transientBools array indices
    final static byte      TRANSACTION_INITIALIZED=0;
    final static byte      UPDATE_INITIALIZED=(byte)TRANSACTION_INITIALIZED+1;
    final static byte   NUM_TRANSIENT_BOOLS=(byte)UPDATE_INITIALIZED+1;
// remanent variables holding reference for transient variables
    private short[]     transientShorts;
    private boolean[]   transientBools;
    private byte[]      CAD_ID_array;
    private byte[]      byteArray8; // Signature work array
// install method
    public static void install( byte[] bArray, short bOffset, byte bLength ) {
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        transientShorts = JCSystem.makeTransientShortArray( NUM_TRANSIENT_SHORTS,
            JCSystem.CLEAR_ON_DESELECT);
        transientBools = JCSystem.makeTransientBooleanArray( NUM_TRANSIENT_BOOLS,
            JCSystem.CLEAR_ON_DESELECT);
        CAD_ID_array = JCSystem.makeTransientByteArray( (short)4,
            JCSystem.CLEAR_ON_DESELECT);
        byteArray8 = JCSystem.makeTransientByteArray( (short)8,
            JCSystem.CLEAR_ON_DESELECT);
(..)and when it's time for usage, things go:
    if (transientShorts[SELECTED_FILE_IX] == (short)0)
        transientShorts[SELECTED_FILE_IX] == fid;
    transientBools[UPDATE_INITIALIZED] =
        sig.verify(MAC_buffer, (short)0, (short)10,
            byteArray8, START, SIGNATURE_LENGTH);I find this
a) Verbose and complex.
b) Error-prone: there is nothing to prevent the accidental use of transientShorts[UPDATE_INITIALIZED].
c) Wastefull of memory: each use of a basic-type state variable wastes some code; each vector state variable wastes an object-descriptor worth of permanent data memory, and code for its allocation.
d) Slow at runtime: each use of a "session variable", especially of a basic type, goes thru method invocation(s) which end up painfully slow (at least on some cards), to the point that for repeated uses, one often attain a nice speedup by caching a session variable, and/or transientShorts and the like, into local variables.
As an aside, I don't get if the true allocation of RAM occurs at install time (implying non-selected applications eat up RAM), or at application selection (implying hidden extra overhead).
I dream of an equivalent for the C idiom "struct of state variables". Are these issues discussed, in a Sun manual, or elsewhere? Is there a better way?
Other desperate questions: does a C compiler that output Javacard bytecode make sense/exists? Or a usable Javacard bytecode assembler?
Francois Grieu

Interesting post.
I don't have a solution to your problem, but caching the session variables arrays in local variable arrays is a good start. This should be only done when the applet is in context, e.g. selected or accessed through the shareable interface. This values should be written back to EEPROM at e.g. deselect or some other important point of time. Do you run into problems if a tear happens? I don't think so since the session variables should be transactional, and a defined point will commit a transaction.
Analyzing the bytecode is a good idea. I know of a view in JCOP Tools (Eclipse plugin) where you can analyze the bytecode and optimize it to your needs.

Server hangs and session variable value not maintained.

dear all,
this is exteremetly urgent. i upgraded my tomcat to 4.1.24.but i have problems running the same code which was working earlier, i get null in the value of session variable. and also get the following error
////////////////error got /////////////
Compile failed; see the compiler error output for details.
at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:842)
at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:682)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:317)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:370)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext
.java:473)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:190)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:2
95)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:
2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatche
rValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:22
3)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:619)
at java.lang.Thread.run(Thread.java:536)
///////////////end of error messsge ////////////
the code where i am getting this message is as follows
<%@ page session="true"%>
<HTML>
<HEAD><TITLE> LOGGED IN ok</TITLE> </HEAD>
<%@ page import="java.sql.*" %>
<%! // declaring variables
String s = "";
java.sql.ResultSet rs=null;
java.sql.Connection con;
java.sql.Statement stmt=null,stmt1=null;
String username = "";
String password = "";
String Ousername = "";
String Opassword = "";
String changepass="";
String usertype ="",useremail="",EmpName="";
%>
<body>
     <%
     try
     //set session for max of 100 milliseconds
     // session.setMaxInactiveInterval(10000);
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     con = java.sql.DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};" +"DBQ=c:/vishal/HelpDesk.mdb;DriverID=22;READONLY=false","","");
          stmt = con.createStatement();
          s = "select * from LoginUser";
     username = request.getParameter("LogonId"); //get this through prev. form
     password = request.getParameter("txtPassword");
     out.println(username + " " + password);
     // make explicitly to lower case
     username = username.toLowerCase();
     rs = stmt.executeQuery(s);
                    while(rs.next())
                    //getting data from database
                    Ousername = rs.getString("EmpName");
                    Opassword = rs.getString("Password");
                    useremail = rs.getString("EmailId");
                    usertype = rs.getString("UserType");
                    if(Opassword.equals(password) && Ousername.equals(username)) //found match correct entry
                         changepass = request.getParameter("PasswordNew");
                         if(changepass != null)
                         stmt1 = con.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_UPDATABLE);
                         s = "update LoginUser set Password = '" + changepass + "' where EmpName = '" + username +"'";
                         out.println(s);
                         stmt1.executeUpdate(s);
                         stmt1.close();
                         if(usertype.equals("User") == false)//ie admin
                         session.setAttribute("username",username);
************************this value not maintained *********************
                         session.setAttribute("useremail",useremail);
                         session.setAttribute("usertype",usertype);
************************this value not maintained *********************
                         //closing connections
                         %>
                              <jsp:forward page= "ComplaintType.jsp" />
                         <%
                         else //user
                         EmpName = username;
                         session.setAttribute("EmpName",EmpName);
                         session.setAttribute("useremail",useremail);
                         //closing connections
                         %>
                         <jsp:forward page="ComplaintCategory.jsp" />
                         <%
                         }//end if
                    }//while loop
                    //first closing connections then forwarding
     %>
                    <jsp:forward page="InvalidLOGIN.jsp" />
                    <%
                    ///rs.close();
                    ////closing
                    //stmt.close();
     // con.close();
     }//try
          catch(Exception ep)
          out.println(ep);
          System.exit(1);
     %>
</BODY>
</HTML>

hi all,
thanx a lot for your help,specially hari52
hari52 strangely enough the code started working,but
now i have another problem
after a while my server hangs or gets shutdown ,a
message is shown as
"java.exe has generated error and will be shutdown"
i know that more connections can be a prob. but i
make sure that connections r closed on each page,also
i am a newbie and do not have the time at present to
learn abt. connection pool ,can this problem be
solved easily?
it would be a great help again on your part,
thanx again,You remove the System.exit(1) line from the code inside the catch block
and try again. That's the reason tomcat getting down. System.exit(1) should not be used inside jsp. it will make the underlaying Servlet Engine to shutdown.

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User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; MS-RTC LM 8)
Timestamp: Fri, 28 May 2010 15:26:37 UTC
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Line: 83
Char: 390
Code: 0
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