The method logout() is undefined for the type HttpSession

I am now trying to invalidate all the sessions by calling HttpSession.logout() in doPost(). I can see this API in a famous servlet book (Coreservlet and Javaserver pages by MartyHall) but in Eclipse it is not able to find out even with the latest JDK 1.7.

Tolls wrote:
Is it?
I can't find any logout() method on the HttpSession interface defined in 3.0.
Got a javadoc link?? I quote and emphasize:
That's in Servlet 3.0, and it is in HttpServletRequest
Here you go:
http://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html#logout%28%29

Similar Messages

Custom iterator problem - The method createChildIterator() is undefined for

Hi there, this is my first post here, still quite new to Java. I'm having trouble with a custom iterator when trying to test it with JUnit. The reason to write a custom iterator is this: I want to get the object in the array, then for each item I want to get it's child items with a new iterator call.
It's quite complicated because naturally I'm trying to hide the implementation from the "user". The iterator holds a list of classes called StandardSortElement. Each of these classes holds a class called AvailableResouce
which in turn holds an AbstractResource, and it's AbstractResource that I want the iterator to return. My JUnit testing shows that this part works correctly.
For the child items, they are also held inside the StandardSortElement as an array list. Here is the error I get
"The method createChildIterator() is undefined for the type Iterator<AbstractResource>"
First here is an interface for the custom iterator:
public interface SortIteratorInterface extends Iterator<AbstractResource>{
     public abstract Iterator<BookingInterface> createChildIterator();
}Here is the iterator class:
public class StandardSortIterator implements SortIteratorInterface {
     ArrayList<StandardSortElement> items;
     Integer position = 0;
     * a constructor that passes in a sorted list of StandardSortElement
     public StandardSortIterator(ArrayList<StandardSortElement> items) {
          this.items = items;
     * Return bookings associated with the currently iterated StandardSortElement
     public Iterator<BookingInterface> createChildIterator() {
          return items.get(position).createBookingIterator();
     * Determine if there is another item in the list
     public boolean hasNext() {
          if (position >= items.size()) {
               return false;
          } else {
               return true;
     * Return the next resource in the list. We have a list of StandardSortElement but
     * we want to return the resource within.
     public AbstractResource next() {
          StandardSortElement ssa = items.get(position);                                             // Get a handle on the StandardSortElement
          AbstractResource ar = ssa.getResource();                                                  // Now get the resource that's packaged up inside
          position++;                                                                                          // Increment the position
          return ar;                                                                                          // return the resource
     * Do not implement - mandatory interface implementation but not required here.
     public void remove() {
          // TODO Auto-generated method stub
}This is the code taken from the JUnit test class
     * This iterator also has an interal child iterator. Check this works as expected
     @Test
     public void testChildIterator() {
          Iterator<AbstractResource> iterator = new StandardSortIterator(items);
          Integer i = 0;
          while (iterator.hasNext()) {
               AbstractResource abstractResource = (AbstractResource)iterator.next();
                if (i.equals(0)) {
                     // The first element should contain children - check it works
                     Iterator<BookingInterface> childIterator = iterator.createChildIterator(); // ERROR OCCURS HERE
               i++;
          assertTrue(i.equals(items.size()));
     /************************************************************************************/Thank you in advance for any help you can provide!
Paul

Your unit test is coded against the Iterator interface, not your SortIteratorInterface, which is where the createChildIterator method is defined. You need to use a reference to a SortIteratorInterface, not an Iterator. Incidentally, when defining an interface, it's unnecessary to declare the methods as public and abstract. They're implicitly that anyway

Adobe Offline Form - Parse method is not possible for this type

Hi All,
I have developed an application for the offline scenario of interactive adobe form. I tried to load the adobe form from my desktop. After pressing the button "Display form" it throws an error "Parse method is not possible for this type".
If I include wdContext.getNodeInfo().getAttribute("pdfObject").getModifiableSimpleType() in the doInit() method of the view I receive this error -
com.sap.tc.webdynpro.progmodel.context.ContextException: MappedAttributeInfo(UploadView.pdfObject): must not modify the datatype of a mapped attribute
When I comment it out and upload I receive the error enclosed -
Parse method is not possible for this type
Can someone please help me with a step by step solution to this problem?
Any help is highly appreciated.
Many thanks,
Divya

Hi Divya,
Please try to do it as stated below:
     IWDAttributeInfo attInfo = wdContext.getNodeInfo().getAttribute("pdfObject");
     ISimpleTypeModifiable type = attInfo.getModifiableSimpleType();
     IWDModifiableBinaryType binaryType = (IWDModifiableBinaryType)type;
Try putting the code in wdInit() or wdDoModifyView().
Let me know if you still face the issue.
Regards,
Arafat

Parse method is not possible for this type

I have a file upload component and one button in a view.
I have created a binary type context element and mapped it with fileupload component.while clicking the submit button I am getting " Parse method is not possible for this type" exception.
help me out.
Thanks In advance

Hi,
Thanks for your response. I have written the following code in wddoinit():
IWDAttributeInfo attributeinfo = wdContext.getNodeInfo().getAttribute(IPrivateSubstanceDocView.IFileUpload02Element.DATA);
attributeinfo.getModifiableSimpleType();
fileUpload02 is my context.
but I am getting a null pointer exception over here.
can ypu please help it.
Actually the case is this is a window, which is opening on click of a hyperlink on another View.
With the action method I am calling this View.
Thus on click of a hyperlink just I am opening a new View then here I am a browse button etc...
PLease help if you can

Parse method is not possible for this type Exception in web dynpro

I have a file upload component and one button in a view.
I have created a binary type context element and mapped it with fileupload component.while clicking the submit button I am getting " Parse method is not possible for this type" exception.
help me out.

Hi sridhar,
Use this code for Upload
context u create one attribute(up),u assign the data type as "Resource"(which is dictionary type)
InputStream text = null;
    int temp = 0;
    try
         File file = new File(wdContext.currentContextElement().getUp().getResourceName());
         FileOutputStream op = new FileOutputStream(file);
         if(wdContext.currentContextElement().getUp()!=null)
              text = wdContext.currentContextElement().getUp().read(false);
               while((temp=text.read())!=-1)
                                                                   op.write(temp);
         op.flush();
         op.close();
    catch(Exception e)
     e.printStackTrace();

Error: The method ReadLine() is undefined for the typ of Objectkey.

I'm new at Java. Can anyone help??? Much appreciated.
public class readfilesAppd {
//     /define string newline for line.seperator
   private static final String nl = System.getProperty("line.separator");
      private static final String userpath = System.getProperty("C:/Documents and Settings/GheeL/My Documents/My Data/835 ERA files/");
      // public static void main(String[] args, Object fr) {
     public static void main(String [] args) {
                 try {
                      ObjectKey br = null;
     //struct stat request_stat_path(char C:/Documents and Settings/GheeL/My Documents/My Data/835 ERA files/, Request *rq);
            // Create file
            //FileReader fr = new FileReader("C:/Documents and Settings/GheeL/My Documents/My Data/835 ERA files/");
            //String FILENAME = "";
             String FILENAME = userpath;
            String record = new String();
                     int recCount = 0;
                    while ((record = br.ObjectKey())) != null)
                           recCount++;
                            FILENAME = record.substring(780, 792);
                          FileWriter fstream = new FileWriter("ERA Loads.txt", true);
                           BufferedWriter out = new BufferedWriter(fstream);
                           out.write(FILENAME+" "+recCount);
                           out.close();
                           System.out.println(FILENAME);
                           System.out.println(recCount);
                      catch (Exception e){//Catch exception if any
                          System.err.println("Error: " + e.getMessage());
                    finally {
                 System.out.println("Is that something to cheer about?");
                         }

You haven't posted the correct code. The error is telling you that you're trying to call a method "ReadLine()" on an object that doesn't have a method by that name. The code you posted doesn't call anything called ReadLine(). Find the code where that happens and post it.

Method getWorkflowEngineJMS() is undefined for the type IJWFPortalService

Hi @ll,
In my web dynpro project, Iu2019m trying to create collaboration task using CreateTask API as described in the following SAP help link:
http://help.sap.com/saphelp_nw70/Helpdata/en/46/94b9b2b321581ce10000000a1553f7/frameset.htm
I've added the following JARs:
com.sap.portal.usermapping_api.jar
com.sap.security.api.jar
com.sap.workflow_api.jar
prtapi.jar
And, also added the following sharing references:
PORTAL:sap.com/com.sap.portal.usermapping
PORTAL:sap.com/com.sap.workflow.apps
But in the coding time Iu2019m unable to find getWorkflowEngineJMS() method of IJWFPortalService. Please suggest shorting out this issue.
Currently Iu2019m working on EP 7.0, SPS 14.
Thank in advance
Gautam Singh.

issue resloved by adding "ejb.jar".

The method is undefined for the type

HI I have a javabean class:
package database;
import java.util.*;
import java.io.*;
public class CompanyFormBean implements Serializable{
private String companyparentid;
private String companyname;
private Hashtable errors;
//private String notify;
public boolean validate() {
    boolean allOk=true;
    if (companyname.equals("")) {
      errors.put("companyname","Please enter your Company Name.");
      companyname="";
      allOk=false;
    return allOk;
public String getErrorMsg(String s) {
    String errorMsg =(String)errors.get(s.trim());
    return (errorMsg == null) ? "":errorMsg;
// public CompanyFormBean(){}
public CompanyFormBean() {
    companyparentid          = "";
    companyname               = "";
    errors = new Hashtable();
public String getCompanyparentid() {
    return companyparentid;
public String getCompanyname() {
    return companyname;
public void setCompanyparentid(String fcompanyparentid) {
    companyparentid = fcompanyparentid;
public void setCompanyname(String fcompanyname) {
    companyname = fcompanyname;
public void setErrors(String key, String msg) {
    errors.put(key,msg);
}after the form is submitted I try to display the values
<%@ page import="database.CompanyFormBean" %>
<jsp:useBean id="formHandler" class="database.CompanyFormBean" scope="session"/>
<html>
<head>
<title></title>
<meta name="Generator" content="EditPlus">
<meta name="Author: Irene Nessa" content="">
<meta name="Keywords" content="">
<meta name="Description: creates a new member account" content="">
</head>
<body>
<form name="reg" method="post" action="ProcessMemberRegistration.jsp" onsubmit='return formValidator()'>
<table>
     <tr>
     <td>Create A New Account</td>
     </tr>
     <tr>
          <td>Existing Company</td>
          <td>
               <input type="text" name="companyparentid" value='<%=formHandler.getCompanyparentid()%>'>
               
          </td>
     </tr>
     <tr>
          <td>Company Name *</td>
          <td><input type="text" name="companyname" value='<%=formHandler.getCompanyname()%>'>
          </td>
     </tr>
</table>
<br>
     <br>
     <input type="reset">  <input type="submit" value='Check Form' />
</form>
</body>
</html>But I keep getting the following errors:*The method getCompanyparentid() is undefined for the type CompanyFormBean* But it defind and the bean class complies. Any idea what am doing wrong.
thanks.

I actually got the same error in the same situation the following is my error and Stacktrace. I was trying to using AJAX to retrieve the message from DB and display it in a text area when user click a radio button. It works well untill I add a new method getMessage(String), please help!
Mar 2, 2009 10:01:03 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 22 in the jsp file: /getmessage.jsp
The method getMessage(String) is undefined for the type Item
19: <jsp:setProperty name="items" property="categoryId" value="<%=catid%>" />
20: <jsp:setProperty name="items" property="effectiveIndicator" value="C" />
21: <%
22: String msg = items.getMessage(id);
23: String decodedmsg = new String(msg.getBytes("iso-8859-1"), "Big5");
24: System.out.print("MSG: " + msg);
25: System.out.print("Deco-MSG: " + decodedmsg);
An error occurred at line: 26 in the jsp file: /getmessage.jsp
The method write(String) is undefined for the type HttpServletResponse
23: String decodedmsg = new String(msg.getBytes("iso-8859-1"), "Big5");
24: System.out.print("MSG: " + msg);
25: System.out.print("Deco-MSG: " + decodedmsg);
26: response.write(decodedmsg);
27: %>
Stacktrace:
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:415)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:308)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:517)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:686)
at java.lang.Thread.run(Thread.java:619)

PreparedStatement.getGeneratedKeys(): undefined for the type PreparedState

All,
I'm getting this exception:
"The method getGeneratedKeys() is undefined for the type PreparedStatement" When I try to run this code:
Connection con = (Connection)getConnection();
PreparedStatement stmt = null;
stmt = con.prepareStatement("INSERT INTO article (title, description, creationDate, createdBy) VALUES (?,?,?,?)");
stmt.setString(1, title);
stmt.setString(2, description);
stmt.setDate(3, creationDate);
stmt.setInt(4, createdBy);
stmt.executeUpdate();
ResultSet rs = stmt.getGeneratedKeys();Javadoc says PreparedStatement inherits getGeneratedKeys() from Statement. Then why does it go wrong?
Thanks alot!

No sorry, it is a compile time error.
But I've solved the problem.
I'm using WSAD and it was pointing to the wrong rt.jar (the one that comes with WSAD). I've changed it to the sun rt.jar and now it works fine!
Thanks anyway!

Generated servlet error: method is undefined for type

Hi,
I keep getting the following error when I attempt to run my JSP:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 12 in the jsp file: /jsp-examples/JSPandMySQL/loginuser.jsp
Generated servlet error:
The method getValidUser() is undefined for the type LoginDetails
In my JSP file I have the code:
<%
boolean validName = login.getValidUser();
if(validName == false) {
out.println("Invalid Username");
} else {
out.println("Valid Username");
%>
and the method getValidUser(); is in a Java Bean that I have created and the code for that method is just :
public boolean getValidUser() {
return valid;
I've tried searching the net for some answers but none of the solutions given work for mine, I would be grateful for any advice on how to solve this program.

DId you import the class at the top of the jSP? Does the method exist? Is the class compiled properly?
- Saish

Execute method is undefined for Request_ZBpProjectGetlist2.

I created a webservice for a BAPI and imported to Web Dynpro DC using Web Service Model.
But I am getting an error in wdContext.currentRequest_ZBpProjectGetlist2Element().modelObject().execute();
It says Method execute() is undefined for Request_ZBpProjectGetlist2.
Can anyone help me why the execute method is not available for webservice model...

Hi Sridhar,
Please check execute method available for Request_ZBpProjectGetlist2 or not.
Organize your import and check Request_ZBpProjectGetlist2 is imported or not.
BR
Arun

Method fprint(String) is undefined for the type JspWriter.

please help me with this problem
below is the jsp code written to access the data from the database and to display it in the new page.
<%@ page
     import = "java.io.*"
     import = "java.lang.*"
     import = "java.sql.*"
%>
<%
     Connection dbconn=null;
     ResultSet results;
     PreparedStatement sql=null;
               String empid1=request.getParameter("empids");
          try
String driver = "com.mysql.jdbc.Driver";
          Class.forName(driver).newInstance();
               dbconn =DriverManager.getConnection("jdbc:mysql://localhost/hris","root","redhat");
               int empid11;
               empid11=Integer.parseInt(empid1);
               sql = dbconn.prepareStatement("select * from employee where empid=?");
               sql.setInt(1,empid11);
               results=sql.executeQuery();
               results.next();
out.print("<html>");
out.print("<head>");
out.print("</head>");
out.print("<body>");
out.print("<table width=810 border=0>");
out.print("<tr>");
out.print("<td width=210>");
out.print("Employee Id");
out.print("</td>");
out.print("<td width=584>");
int emp=results.getInt("empid");
out.print(emp);
out.print("</td>");
out.print("</tr>");
out.print("<tr>");
out.print("<td>");
out.print("FirstName");
out.print("</td>");
out.print("<td>");
String first=results.getString("fname");
out.print(first);
out.print("</td>");
out.fprint("</tr>");
          catch (SQLException s)
               out.println("SQL Error <br>"+s);
catch ( Exception x )
               x.printStackTrace();
%>
but when i click the submit button , the error is
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 9 in the jsp file: /HRIS/empsearch1.jsp
Generated servlet error:
The method fprint(String) is undefined for the type JspWriter
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 9 in the jsp file: /HRIS/empsearch1.jsp
Generated servlet error:
The method fprint(String) is undefined for the type JspWriter
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:409)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:297)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.15 logs.
i am not able to rectify the error.

JavaB wrote:
Hi ,
I have a method defined in my dataManagerDAO classIs it dataManagerDAO or DataManagerDAO?
getNoc( strRppsId) throws Exception {}That's not a legal Java method declaration, so it's clearly not your actual declaration, so I have no idea what your actual declaration is, so I can't tell you what you're doing wrong.
Now I am calling this method inside my JSP page :
DataManagerDAO dataMgr = new DataManagerDAO();
dataMgr.getNoc(strRppsId)..
But whenver I am running it locally , it fails to compile and gives following error msg :
The method getNoc(String) is undefined for the type DataManagerDAOQuite obviously you're calling a method getNoc(String) but that method doesn't exist on the DataManagerDAO class. No matter how much you may think you know that it does, you're wrong and the compiler is right.
Maybe you misspelled or mis-capitalized something. Maybe you're passing the wrong type of argument. Maybe you're still using an older version of the DataManagerDAO class from before you added that method. Not enough information here to say for sure.
ny clue wats going wrong in here ?I assume you mean "any", not "ny" and "what's", not "wats". Clear, correct, precise communication counts with folks here almost as much as it does with the Java compiler.

Can someone explain me the error "The method xyz is ambiguous for the type"

I get this compiler-error "The method compareTo(java.lang.Object) is ambiguous for the type MyClass" everytime when I want to access the method "compareTo(Object)", which is overwritten in MyClass and in the superclass of MyClass.
What does it mean?
Thank you for your help!
Ciao

it means you are using a method declared in two of your class declared packages...
the package paradigm was created to provide a way to distinguish the method with the same signature but from different projects..
many Java API methods has the same signature but comes from diferent packages.. if you declare theese packages using '*', you should declare it variables with its full signature...
look this:
http://java.sun.com/docs/books/tutorial/java/interpack/packages.html

Method is undefined for type

What am I doing wrong here?
public void testArray(Test2[] tarray){
          for(Test2 t : tarray){
               System.out.println(t);
Test2[] passArray = new Test2[4];
testArray(passArray); // error: Method testArray(Test2[]) is undefined for type Test.Also, for future reference, how do I format the code for this forum so that it has proper indentation and is easier to read? Thanks.
Edited by: 837443 on Feb 26, 2011 11:43 AM

837443 wrote:
What am I doing wrong here?
public void testArray(Test2[] tarray){
          for(Test2 t : tarray){
               System.out.println(t);
Test2[] passArray = new Test2[4];
testArray(passArray); // error: Method testArray(Test2[]) is undefined for type Test.Well from what you've posted, there's no matching brace for the method.
Also, for future reference, how do I format the code for this forum so that it has proper indentation and is easier to read? Thanks.put it in tags. There's an explaination in the Welcomd thread I believe, and also in the FAQs.
Winston

What's the type of control for stepper motor?

Hi,
I'm using PXI-7358 controller, UMI-7774, Industrial Device NextStep third part microstepping drive, stepper motor SANYO-DENKI (type 103-8932-6421, NEMA42) and incremental encoder 3600 ppr (14400 count/round). I want to say what's the NI onboard type of control used to control motor step position? In the case of servomotor the type of onboard control is a PID, in the case of stepper motor what's the type of control? What's the MAX parameters to set for the project specific (overshoot, settling time, rise time etc..)? What does it means "Pull-in Window" e "Pull-in Tries" in MAX? So, it's possible control the stepper motor with user's algorithm control, excluding the onboard control?
Thanks for your patience,
Best regards
Lorenzo

>
Matt wrote:
> Go to SE24. Type in cl_dd_document and press enter. Select the methods tab. Look for the method "CONSTRUCTOR". Double click on it. Click on SIGNATURE button. The types of the parameters are clearly seen.
>
> matt
TYPE and VALUES OF TYPE -- different things. For example, TYPE C -- CHAR. VALUES of this: A, B, C, ..., 1, 2, 3.
Thus, return to question.
TYPES: sdydo_attribute(50) TYPE c
TYPE: sdydo_attribute
VALUES: ???
May be, value ABRAKADABRA correct?

The method logout() is undefined for the type HttpSession

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