JSP unable to load javascript

I have a JSP page that is using a tag library from DotJ software. With the tag library there is an accompanying javascript library that handles the client side of the form. The screen runs okay on my laptop from within JDeveloper and from JDeveloper on the server that we are to deploy to.
The problem occurs when I try to run the page from 10g application server.
Generally, when I test the page its usually as an address of the form:-
xxx.xxx.xxx.xxx/UPDORA/Screen.jsp
When the page loads everything is there (logos, buttons, grid data etc.) but an error is displayed stating that the javascript file couldn't be loaded. The alert displays the URL that it is trying to load the javascript from - this seems to be different to the URL that I run the page from:
http://<machine name here>:81/UPDORA/dotj/dotj_2_0.js
I'm guessing that the inclusion of the port number is causing the problem ? The dotj directory is in the same place as Screen.jsp so I would assume if it can find one it can find another - but it isn't. I'm not sure if the problem is with the application server or the tag library that is trying to load the javascript file - but the screen runs okay from JDeveloper.
Does anyone have any idea what the problem may be ?

Hi,
I do not know what is the cause of your problem. However, it should be easy to identity the root cause. Here are some basic suggestions:
1. Since you can access http://something/here/Screen.jsp, try accessing http://samething/here/dotj/dotj_2_0.js from your browser directly just to make sure it is there.
2. check page source received by your browser to see the address of your javascript.
3. check .java file generated out of your jsp file by jdeveloper, which should be inside the directory for your jdeveloper project. Also check the .java file generated by your application server, which is in j2ee/home/application-deployments/yourApp/yourWebApp/persistence/_page. Find what is the difference that causes, I assume, different urls for your javascript.

Similar Messages

JSP Unable to load class

I am using the core servlets book and Tomcat 3.2.4 to learn JSP. The first example will not work because of the follwing exception:
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I have the following files in the following paths:
ExampleTag.java is in the path E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag and the code is as follows:
package tags;
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import java.io.*;
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* <P>
* Taken from Core Servlets and JavaServer Pages
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* © 2000 Marty Hall; may be freely used or adapted.
public class ExampleTag extends TagSupport {
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This is an excert from the Tag Library Descriptor file named csajsp-taglib.tld (the entire file is too long to include). This is in path :E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
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"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">

<taglib>

<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>csajsp</shortname>

<uri></uri>
<info>
A tag library from Core Servlets and JavaServer Pages,
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<tag>
<name>example</name>
<tagclass>E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag</tagclass>
<info>Simplest example: inserts one line of output</info>

</tag>
and the .jsp file is SimpleExample.jsp and is located in the path E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp\SimpleExample.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>
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<LINK REL=STYLESHEET
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I have tried putting the ExampleTag.java file and the folder that it is in, 'tags', in about every path I can think of and I get the same error. I also tried removing the entire path from the .tld file and just calling for tags.ExampleTag. Still no luck.
I am using win98.
Any assistance will be greatly appreciated.
Thanks,
Scott

I compiled the .java and put the .class file in the following path:
E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags
I am getting the error: org.apache.jasper.compiler.CompileException: E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\jsp\SimpleExample.jsp(14,7)
Unable to load class E:\Tomcat324\jakarta-tomcat-3.2.4\webapps\examples\WEB-INF\classes\tags.ExampleTag
Here is another look at the .java file that I compiled:
package tags;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
/** Very simple JSP tag that just inserts a string
* ("Custom tag example...") into the output.
* The actual name of the tag is not defined here;
* that is given by the Tag Library Descriptor (TLD)
* file that is referenced by the taglib directive
* in the JSP file.
* <P>
* Taken from Core Servlets and JavaServer Pages
* from Prentice Hall and Sun Microsystems Press,
* http://www.coreservlets.com/.
* � 2000 Marty Hall; may be freely used or adapted.
public class ExampleTag extends TagSupport {
public int doStartTag() {
try {
JspWriter out = pageContext.getOut();
out.print("Custom tag example " +
"(tags.ExampleTag)");
} catch(IOException ioe) {
System.out.println("Error in ExampleTag: " + ioe);
return(SKIP_BODY);
Any idea why I am still getting an error?

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          Regards,
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          BEA Support
          "Steve Soloski" <[email protected]> wrote in message
          news:[email protected]...
          > I'm trying to load an applet from my JSP (under WL 6.1 SP2 on Win2K) with
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          I
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          sure
          > that my problem is not having the correct CODEBASE, but just what should
          > that CODEBASE be? According to the docs, /classes/ear@war/ should work...
          > but using that I get a FileNotFound exception from the Java PlugIn. Am I
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          have
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JSP Unable to Load Class (posted in Java Programming for 5 Dukes)

I hope this isn't a violation of forum etiquette, but I posted my question in Java Programming at http://forum.java.sun.com/thread.jsp?forum=31&thread=203255
I realize now that it may have been wiser to post it here, but I have some replies already and it makes more sense just to inlcude the link.
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It's worth 5 dukes.

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B!

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In the course of your troubleshooting to date, have you worked through the following document, Jeff?
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The JRE is 1.4.2_09. I can't use 1.5 (5.0) without upgrading the OS.
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2006-10-24 16:58:40 Could not load TagExtraInfo class org.apache.taglibs.standard.tei.ForEachTEI: org.apache.taglibs.standard.tei.ForEachTEI
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     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
     at java.lang.Thread.run(Thread.java:536)
here is my servlet:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.sql.*;
import java.sql.Date;
public class FormHandlerServlet extends HttpServlet{
private static final String driver="com.mysql.jdbc.driver";
private static final String dbURL= "jdbc:mysql://localhost/aos";
private static final String login= "aos";
private static final String password= "aos";
private ServletContext context;
private Connection conn= null;
private Statement stmt= null;
public void init(ServletConfig config) throws ServletException{
     super.init(config);
     context= config.getServletContext();
     try{
     Class.forName(driver);
     conn= DriverManager.getConnection(dbURL, login, password);
     stmt= conn.createStatement();
     catch(ClassNotFoundException e){
     System.err.println("Unable to load driver");
     throw new ServletException("Unable to load driver");
     catch(SQLException e){
     System.err.println("Unable to connect to database");
     throw new ServletException("Unable to connect to database");
public void service(HttpServletRequest req,
          HttpServletResponse res)
     throws ServletException, IOException{
     Vector errors= new Vector();
     Calendar startCalendarDate = Calendar.getInstance(TimeZone.getDefault());
     java.util.Date startUtilDate = new java.util.Date();
     long startLongDate = startCalendarDate.getTime().getTime();
     java.sql.Date startSqlDate = new java.sql.Date(startLongDate);
     String userID= req.getParameter("userID");
     String password1= req.getParameter("password1");
     String password2= req.getParameter("password2");
     String name= req.getParameter("name");
     String ic= req.getParameter("ic");
     String status= req.getParameter("status");
     String gender= req.getParameter("gender");
     String department= req.getParameter("department");
     String email= req.getParameter("email");
     String phone=req.getParameter("phone");
     if(!isRequiredData(userID, password1, password2, status))
     errors.add("Sila isikan semua data yang diperlukan dimana *.");
     else{
     try{
     if(isExistedUser(userID))
errors.add("No Matriks/Pekerja anda sudah wujud, Sila cuba lagi.");
     catch(SQLException e){}
     if(!isSamePassword(password1,password2))
     errors.add("Sila isikan password1 dan password2 yang sama.");
     if(!isValidPassword(password1,password2))
     errors.add("Sila isikan password anda dalam 8-12 perkataan.");
     if(!isValidEmail(email))
     errors.add("Sila pastikan " +"@"+" dalam e-mel anda.");
     if(!isValidPhone(phone))
     errors.add("Sila pastikan "+ "-"+" tidak dalam nombor telefon anda.");
     if(!isValidUserID(userID))
     errors.add("Nombor Matriks/Pekerja anda tidak mengandungi 6 perkataan.");
     String next;
     String password= password1;
     String insert= "insert into user values('"+userID+"', '"+password+"','"+
     name+"', '"+ic+"', '"+status+"', '"+gender+"','"+
     department+"', '"+email+"', '"+phone+"', '"+startSqlDate+"')";
     if (errors.size() ==0){
     //data is ok, insert data to database, dispatch to wherever
     try{
          int x= stmt.executeUpdate(insert);
     catch(SQLException e){}
     next= "/aos/thanks.jsp";
     else{
     //data has errors, try again
     String[] errorArray= (String[])errors.toArray(new String[0]);
     req.setAttribute("errors", errorArray);
     next= "/aos/RegisterForm.jsp";
     RequestDispatcher rd;
     rd= context.getRequestDispatcher(next);
     rd.forward(req, res);
public boolean isSamePassword(String password1,String password2){
     //check for both password is same
     return(password1.equals(password2));
public boolean isValidPassword(String password1,String password2){
     //check for both password is under 8-12 char
     return(password1.length()>=8 && password1.length()<=12 &&
     password2.length()>=8 && password2.length()<=12);
public boolean isValidPhone(String phone){
     //check for no dashes
     return(phone.indexOf("-")==-1);
public boolean isValidEmail(String email){
     //check an "@" somewhere after 1st char
     return(email.indexOf("@")>0);
public boolean isValidUserID(String userID){
     //check for userID is 6 char
     return(userID.length()==6);
public boolean isRequiredData(String userID,
String password1, String password2, String status){
//check for required data is filled
     return(userID.length()!=0 && password1.length()!=0 &&
     password2.length()!=0 && status.length()!=0);
public boolean isExistedUser(String userID) throws SQLException{
String sql= "select * from user where id= '"+userID+"'";
ResultSet rs= stmt.executeQuery(sql);
     if(rs.next())
return true;
     else
     return false;


is the driver name correct?
private static final String driver="com.mysql.jdbc.driver";
I usually have another string, but I might use a different mysql driver. Try opening your mysql driver with winzip and see if the class is there and at the defined directory place

"Unable to load data" error after Windows update

Hi all,
I've been maintaining a LightSwitch desktop app for a couple of years now. The app runs on a server and several client machines access it. Sometime in the last few months, any client that has Windows Update enabled has failed to load data. Instead
it shows red crosses where the data should be and the tooltip, "Unable to load data. Please check your connection and try loading again."
Other clients that don't have updates enabled are fine. Has anyone else run into this issue? Does anyone know how to resolve it?
Thanks,
Liam

Hi Angie,
Thanks for your reply. I've enabled diagnostics as described. Here's what I find.
When I load my LightSwitch screen, I get the following entry highlighted red in Fiddler:
GET http://127.0.0.1:6853/callback.json?_=1377245349573
502 Fiddler - Connection Failed (text/html)
GET http://127.0.0.1:6853/callback.json?_=1377245349573 HTTP/1.1
Host: 127.0.0.1:6853
Proxy-Connection: keep-alive
Accept: application/json, text/javascript, */*; q=0.01
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.57 Safari/537.36
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-GB,en;q=0.8
HTTP/1.1 502 Fiddler - Connection Failed
Date: Fri, 23 Aug 2013 08:09:10 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Timestamp: 09:09:10.584
[Fiddler] The socket connection to 127.0.0.1 failed. <br />ErrorCode: 10061. <br />No connection could be made because the target machine actively refused it 127.0.0.1:6853
After that, I see a long list of each of the queries LightSwitch is calling for all the elements on the screen. Each one contains the following error:
HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 747
Content-Type: application/msbin1
Expires: -1
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Fri, 23 Aug 2013 08:10:38 GMT
@Fault5http://schemas.microsoft.com/ws/2005/05/envelope/none@Code@Value�Sender@Reason@Textxmllang�en-GB��<?xml version="1.0" encoding="utf-16"?><ExceptionInfo><Message>User does not have access to the invoked operation. Your session may have timed out. Please restart the application. Operation name: 'HSEComments_All'.</Message></ExceptionInfo>@Detail@DomainServiceFaultDomainServices i)http://www.w3.org/2001/XMLSchema-instance@ ErrorCode�@ErrorMessage��<?xml version="1.0" encoding="utf-16"?><ExceptionInfo><Message>User does not have access to the invoked operation. Your session may have timed out. Please restart the application. Operation name: 'HSEComments_All'.</Message></ExceptionInfo>@IsDomainException�
Can you help in interpreting these?
Thanks,
Liam

Unable to load taghandler on 10g(10.1.2.)

Hello forum,
I have one jstl tag to generate input fields, I have it in web-inf/tags and tld in web-inf/tld.
On my develper machine I use tomcat 5.0.28 all working fine. I moved it to ora server, and i will get this error
Unable to load taghandler class: http://cz.envinet/jsp/validAbleInput
for sure that tld file is in claaspath I copy it to web-inf/lib.
I use jakarta-taglibs-standard-1.0.6 standrat.jar and jstl.jar.
My tld file
<?xml version="1.0" encoding="UTF-8" ?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<description>valid able input</description>
<display-name>validAbleInpu</display-name>
<tlib-version>1.1</tlib-version>
<short-name>validAbleInput</short-name>
<uri>http://cz.envinet/jsp/validAbleInput</uri>
<tag-file>
<name>validAbleInput</name>
<path>/WEB-INF/tags/validAbleInput.tag</path>
</tag-file>
Im new in jstl so I tried find some good information about it, but still dont get a lot of info to solve why it doesnt work on ora server.
Anyone can help?
Petr, CZ
Im reading JSP documet for 10.1.2 server I did some changes in tld file and add taglib to web.xml
<taglib>
<taglib-uri>/validAbleInput</taglib-uri>
<taglib-location>/WEB-INF/tags/validAbleInput.tag</taglib-location>
</taglib>
I cannot find that how to use tag file, all use class file,
anyon eknow if 10.1.2 server can use tag jsp file?
and maybe is solution that I cannot use tag in validAbleInput.tag writing in jsp but I need use java class file tag.
Edited by: ppo on 9.4.2010 8:46
Edited by: ppo on 9.4.2010 8:54

I rewrite it to class tag I succesfuly loaded and show to the page, but I canot assignr parametrs to the tag i can use only
example tag atibute name
this work
... name="Jan".... ----? it will show -----> jan
...name="${bean.getName()}" ----> show ----> ${bean.getName()}
...name="<%=bean.getName()%>" ----> show ----> <%=bean.getName()%>
anybody can help to understand
My tld
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">

<taglib xmlns="http://java.sun.com/JSP/TagLibraryDescriptor">
<description>valid able input</description>
<display-name>validAbleInpu</display-name>
<tlib-version>1.0</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>example</short-name>
<short-name>validAbleInput</short-name>
<uri>/validAbleInput</uri>
<tag>
<name>validAbleInput</name>
<tag-class>cz.envinet.jsp.tags.ValidAbleInputTag</tag-class>
<attribute>
<name>name</name>
<required>true</required>
<type>java.lang.String</type>
</attribute>
<attribute>
<name>value</name>
<required>true</required>
<type>java.lang.String</type>
</attribute>
<attribute>
<name>isError</name>
<required>true</required>
<type>java.lang.Boolean</type>
</attribute>
<attribute>
<name>errorMsg</name>
<required>true</required>
<type>java.lang.String</type>
</attribute>
<attribute>
<name>isDateInput</name>
<required>false</required>
<type>java.lang.Boolean</type>
</attribute>
<attribute>
<name>reqValue</name>
<required>true</required>
<type>java.lang.String</type>
</attribute>
</tag>
</taglib>
web.xml definition
<taglib>
<taglib-uri>/validAbleInput</taglib-uri>
<taglib-location>/WEB-INF/tlds/validAbleInput.tld</taglib-location>
</taglib>
Petr, CZ
Edited by: ppo on 9.4.2010 11:16

Office App Devlopment: Unable to load one or more of the requested types.

I'm receiving the following error with the default C# Office App for Word, Excel, Powerpoint, Project Task Pane
Error Code
Description
File
Line
Col
Project
1
Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v12.0\SharePointTools\Microsoft.VisualStudio.SharePoint.targets
438
5
AppName
I'm using
Microsoft Visual Studio Community 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.5.51641
Installed Version: Professional
LightSwitch for Visual Studio 2013   06177-004-0444002-02129
Microsoft LightSwitch for Visual Studio 2013
Team Explorer for Visual Studio 2013   06177-004-0444002-02129
Microsoft Team Explorer for Visual Studio 2013
Visual Basic 2013   06177-004-0444002-02129
Microsoft Visual Basic 2013
Visual C# 2013   06177-004-0444002-02129
Microsoft Visual C# 2013
Visual C++ 2013   06177-004-0444002-02129
Microsoft Visual C++ 2013
Visual F# 2013   06177-004-0444002-02129
Microsoft Visual F# 2013
Visual Studio 2013 Code Analysis Spell Checker   06177-004-0444002-02129
Microsoft® Visual Studio® 2013 Code Analysis Spell Checker
Portions of International CorrectSpell™ spelling correction system © 1993 by Lernout & Hauspie Speech Products N.V. All rights reserved.
The American Heritage® Dictionary of the English Language, Third Edition Copyright © 1992 Houghton Mifflin Company. Electronic version licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.
Windows Phone SDK 8.0 - ENU   06177-004-0444002-02129
Windows Phone SDK 8.0 - ENU
Application Insights Tools for Visual Studio Package   1.0
Application Insights Tools for Visual Studio
ASP.NET and Web Tools   12.4.51016.0
Microsoft Web Developer Tools contains the following components:
Support for creating and opening ASP.NET web projects
Browser Link: A communication channel between Visual Studio and browsers
Editor extensions for HTML, CSS, and JavaScript
Page Inspector: Inspection tool for ASP.NET web projects
Scaffolding: A framework for building and running code generators
Server Explorer extensions for Microsoft Azure Websites
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Microsoft Azure
ASP.NET Web Frameworks and Tools 2012.2   4.1.21001.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563
ASP.NET Web Frameworks and Tools 2013   5.2.21010.0
For additional information, visit http://www.asp.net/
Common Azure Tools   1.3
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
Microsoft Azure Mobile Services Tools   1.3
Microsoft Azure Mobile Services Tools
NuGet Package Manager   2.8.50926.663
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.
Office Developer Tools for Visual Studio 2013 ENU   12.0.31105
Microsoft Office Developer Tools for Visual Studio 2013 ENU
PowerShell Tools   1.3
Provides file classification services using PowerShell
PreEmptive Analytics Visualizer   1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.
SQL Server Data Tools   12.0.41012.0
Microsoft SQL Server Data Tools
Windows Phone 8.1 SDK Integration   1.0
This package integrates the tools for the Windows Phone 8.1 SDK into the menus and controls of Visual Studio.
From looking at the build it looks like the web part is building correctly but the application isn't passing validation, I have no idea why since it is the default app, I've made Office Apps on previous machines without a problem.
Any help would be much appreciated and also let me know if I can give more info!

Hi mngfinney,
>> From looking at the build it looks like the web part is building correctly but the application isn't passing validation, I have no idea why since it is the default app, I've made Office Apps on previous machines without a problem.
I’m trying to reproduce your issue but failed.
Here is my steps:
#1 Install Microsoft Visual Studio Community 2013
#2 Install Microsoft Office Developer Tools for Visual Studio 2013
#3 Create a new Apps for Office project and rebuild
According your error message, the failed step is ValidatePackage, I suspect it is an environment issue, but I cannot identify the root cause basing on the information you post.
Have you tried to re-install the Visual Studio and Microsoft Office Developer Tools for Visual Studio 2013 or test it on another machine with Microsoft Visual Studio Community 2013?
Regards,
Jeffrey
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