Form error in portal (java.lang.ClassNotFoundException)

I have created a url portlet to integrate an oracle 10g form into portal. form works fine when run from the form builder or browser. but it shows me "java.lang.ClassNotFoundException:oracle.forms.engine.Main" error in the portal(oracle 10g portal). anyone could help on this.

thanks for the reply
how can i check that as i am not an experienced user in all these things.
i did the default installation of Oracle AS 10g SEOne where i got installed infrastructure and portal.

Similar Messages

Error loading driver: java.lang.ClassNotFoundException: oracle.jdbc.driver.

Hi!!!
I�m trying to execute a example program included in http://archive.coreservlets.com/, the file is FruitTest.java....this compile very well...but....when i tried to execute it i have the following error:
Error loading driver: java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
Could somebody tell me what i have to add to my classpath?...and how to know if i have to download something and in what link is it?......
Thanks in advance...
Mary

Hi mary,
Please try following code, but before that please include classes12.zip in ur classpath. This file contains the oracle thin driver.
Connection connection = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
String url = "jdbc:oracle:thin:@dbUrl"
connection = DriverManager.getConnection(url, "dbName", "password");
}catch (Exception e){
e.printStackTrace();
good luck ...san :-)

Error(1): java.lang.ClassNotFoundException: oracle.cabo.ui.jsps.tags.ListOf

Iam getting the following errors when I try to compile my jsp. But when I compile it om another pc it works fine
Error(1): java.lang.ClassNotFoundException: oracle.cabo.ui.jsps.tags.ListOfValuesTEI
Error(1): Unable to load taghandler class: http://java.sun.com/jstl/core
Iam using jdev IDE 9.0.3.10.35
below is the code Iam trying to compile. Is it a bug Iam experiencing or faulty code??????
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<HTML>
<HEAD>
<TITLE> </TITLE>
<LINK rel="stylesheet" type="text/css" href="../style/sheet.css">
<script language="JavaScript">
function confirmDelete(id) {
var ans = confirm("Weet U zeker dat U deze allocatie wilt verwijderen?");
if (!ans) return;
window.document.SelectionForm.action="../servlet/colossus.servlets.DeleteAllocation";
window.document.SelectionForm.selectedID.value=id;
window.document.SelectionForm.url.value=document.location;
window.document.SelectionForm.submit();
function modify(id) {
url = escape(window.document.location);
window.document.location="../servlet/colossus.servlets.ModifyAllocation?allocID="+escape(id)+"&url="+url;
</script>
</HEAD>
<BODY topmargin=10 leftmargin=15 >
<table border="0" cellPadding="5" cellSpacing="0" width="472">
<tr>
    <td bgcolor="#ffffff">
      <table border="0" cellPadding="2" cellSpacing="0" width="462">
        <tr>
          <td class="kopbalk" width="440"><P class="kop"> <b>Allocaties bekijken</b></P></td>
          <td width="22"></td>
        </tr>
        <tr>
          <td width="440" height="10"></td>
          <td width="102" height="10"></td>
        </tr>
        <tr>
          <td width="440">
            <table width="440" cellpadding="2" cellspacing="0" border="0">
         <form name="SelectionForm" action="../servlet/colossus.servlets.ShowAllocations" method="get">
           <input type="hidden" name="selectedID" value="" />
           <input type="hidden" name="url" value="" />
           <c:if test="${!(empty errorMsg)}">
           <tr>
             <td colspan="2" class="error"><p><c:out value="${errorMsg}" /></p></td>
              </tr>
              </c:if>
              <tr>
                <td width="130"><P>Van <FONT size="1">(dd-mm-jjjj)</FONT></P></td>
                <td width="310"><P>
          <INPUT type="text" name="startDay" size="2" maxlength="2" value="<c:out value='${param.startDay}'/>"> -
          <INPUT type="text" name="startMonth" size="2" maxlength="2" value="<c:out value='${param.startMonth}'/>"> -
          <INPUT type="text" name="startYear" size="4" maxlength="4" value="<c:out value='${param.startYear}'/>"> om
          <INPUT type="text" name="startHour" size="2" maxlength="2" value="<c:out value='${param.startHour}'/>"> :
          <INPUT type="text" name="startMinute" size="2" maxlength="2" value="<c:out value='${param.startMinute}'/>">
          </P></td>
              </tr>
              <tr>
                <td width="130"><P>Tot <FONT size="1">(dd-mm-jjjj)</FONT></P></td>
                <td width="310"><P>
          <INPUT type="text" name="endDay" size="2" maxlength="2" value="<c:out value='${param.endDay}'/>" > -
          <INPUT type="text" name="endMonth" size="2" maxlength="2" value="<c:out value='${param.endMonth}'/>"> -
          <INPUT type="text" name="endYear" size="4" maxlength="4" value="<c:out value='${param.endYear}'/>"> om
          <INPUT type="text" name="endHour" size="2" maxlength="2" value="<c:out value='${param.endHour}'/>"> :
          <INPUT type="text" name="endMinute" size="2" maxlength="2" value="<c:out value='${param.endMinute}'/>">
          </P></td>
              </tr>
              <tr>
                <td width="130"><P>Vestiging</P></td>
                <td width="310"><P>
                  <SELECT name="vestigingID">
              <c:forEach items="${offices}" var="office">
                      <option value="<c:out value='${office.ID}'/>" <c:out value="${office.selected}" /> >
                        <c:out value="${office.name}"/>
                      </option>
              </c:forEach>
                  </SELECT>
                </P></td>
              </tr>
           <tr>
             <td colspan="2" width="440">
            <div align="center"><input type="submit" value="- Ok -"></div>
          </td>
           </tr>
         </form>
            </table>
          </td>
          <td width="102"> </td>
        </tr>
        <tr>
          <td width="440"> </td>
          <td width="102"> </td>
        </tr>
        <tr>
          <td colspan="2">
            <table width="542" cellpadding="0" cellspacing="0" border="0">

<c:if test="${!(empty allocs)&&(empty errorMsg)}">
<TABLE border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="572">
<TR>
    <TD bgcolor="#ffffff" width="30"><P> </P></TD>
    <TD bgcolor="#ffffff" width="80" align="center"><P><B>Verdieping</B></P></TD>
    <TD bgcolor="#ffffff" width="80" align="center"><P><B>Ruimte</B></P></TD>
    <TD bgcolor="#ffffff" width="80" align="center"><P><B>Van</B></P></TD>
    <TD bgcolor="#ffffff" width="80" align="center"><P><B>Tot</B></P></TD>
    <TD bgcolor="#ffffff" width="200" align="center"><P><B>Omschrijving</B></P></TD>
</TR>
<c:forEach items="${allocs}" var="alloc">
    <TR>
      <TD bgcolor="#ffffff" width="30" align="center">
        <a href="javascript:modify('<c:out value="${alloc.ID}" />')"><IMG src="../images/edit.gif" border="0" alt="Allocatie wijzigen"></a><a href="javascript:confirmDelete('<c:out value="${alloc.ID}" />')"><IMG src="../images/delete.gif" border="0" alt="Allocatie verwijderen"></a>
      </TD>
      <TD bgcolor="#ffffff" width="80" align="center"><P><c:out value="${alloc.floorNumber}" /></P></TD>
      <TD bgcolor="#ffffff" width="80" align="center"><P><c:out value="${alloc.roomNumber}" /></P></TD>
      <TD bgcolor="#ffffff" width="80" align="center"><c:out value="${alloc.shortStartDate}" /><br>
                                                      <c:out value="${alloc.startTime}" /></TD>
      <TD bgcolor="#ffffff" width="80" align="center"><c:out value="${alloc.shortEndDate}" /><br>
                                                      <c:out value="${alloc.endTime}" /></TD>
      <TD bgcolor="#ffffff" width="200" align="left"><P><c:out value="${alloc.description}" /></P></TD>
    </TR>
</c:forEach>
</TABLE>
</c:if>

            </table>
          </td>
        </tr>
                   </TABLE>
    </td>
</tr>
</table>
</BODY>
</HTML>

Olival,
Is your application using UIX ? Seems like it from the error. The class you are getting the error on
Erro: java.lang.ClassNotFoundException: oracle.cabo.ui.jsps.tags.RenderingContextTEI"
is part of uix2.jar, which is available in JDev environment, but not under standalone
OC4J. Hence the error.
-Prasad
Hi,
I'm getting this error when trying to run my struts app:
"500 Internal Server Error
OracleJSP: oracle.jsp.parse.JspParseException: Nzmero da Linha 1, <%@ taglib uri="/WEB-INF/struts-logic.tld"
prefix="logic" %>
Erro: java.lang.ClassNotFoundException: oracle.cabo.ui.jsps.tags.RenderingContextTEI"
The error msg is localized to my country (Brazil), so "Nzmero da Linha" translates to "Line Number", and "Erro" means "Error".
The error comes from the 1st page called by the application (index.jsp), wich uses the struts redirect tag.
Strange enough, this error only shows on OC4J 9.0.3 stand-alone (got the latest version today from OTN), but when calling from JDeveloper 9.0.3 (production), using the embedded OC4J, everything's ok.
Has anybody experienced the same error ?
Tnxs,
Olival Jr.

Java.lang.ClassNotFoundException Error

Hi,
I am trying to view the output of the example(samples/examples/jsp/JdbcTable.jsp)
in Weblogic Server 6.1
Basically it was trying to show the data from a table (Select * from emp) in an
HTML Table. But it was giving the following error.
Exception:
java.lang.ClassNotFoundException: COM.cloudscape.core.JDBCDriver
How do I resolve this error in order to view data from an Cloudscape Datbase.
Also what are the steps involved in creating a Database Connection for Cloudscape
Database.
Please give me brief steps involved in this process.
Thanks,
Ram

Hello again,
I solved the problem.
In Control Panel -> JInitiator administration console , the option "Use browser settings" has to be unchecked.
daniela

SetLookAndFeel and java.lang.ClassNotFoundException problem

Hi there, I'll admit I'm a newbie, but I really need help. I'm trying to create a GUI with a Metal layout: here the code:
public static void main(String[] argument) {
UIManager.setLookAndFeel
("javax.swing.plaf.metal.MetalLookAndFeel");
when I try to compile the file, it gives following error:
unreported exception java.lang.ClassNotFoundException; must be caught or declared to be thrown
UIManager.setLookAndFeel
("javax.swing.plaf.metal.MetalLookAndFeel");
^
please remember i'm a newbie, so go easy on the lingo

import javax.swing.*;
import java.awt.*;
public class MainFrame extends JFrame {
     public MainFrame() {
          super("Vloot Verslag 2006");
          setSize(350, 100);
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          setVisible(true);
          Container pane = getContentPane();
          FlowLayout flo = new FlowLayout();
          pane.setLayout(flo);
          JButton Accounting = new JButton("Accounting");
          Accounting.setEnabled(false);
          JButton Logistics = new JButton("Logistics");
          JButton Exit = new JButton("Exit");
          pane.add(Accounting);
          pane.add(Logistics);
          pane.add(Exit);
          setContentPane(pane);
     public static void main(String[] argument) {
          UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
          MainFrame sal = new MainFrame();
Ok there is my whole file, I just need to know what I am doing wrong

Java.lang.ClassNotFoundException error when running a form

Hello,
On a Windows 2003 64 bits server I have installed Oracle Application Server 10gR2 10.1.2.0.2 (Infrastructure + Business Intelligence and Forms option). I also upgraded to Portal 10.1.4. All components are up and running.
I wanted to test if Forms services are functional using the test form provided by OAS at installation (test.fmb/.fmx).
Steps executed:
1) Start -> Programs ->Oracle Application Server 10g -> Forms Services -> Run a form on the web for form=test.fmx
or in the IE browser:
2) http://pwr-hp-srv.replynet.prv:7778/forms/frmservlet?form=test.fmx
The applet is not starting and I receive the following error:
java.lang.ClassNotFoundException: oracle.forms.engine.Main
What does this mean? What should I do to make it work?
Any help will be appreciated.
Tahnk you.
daniela

Hello again,
I solved the problem.
In Control Panel -> JInitiator administration console , the option "Use browser settings" has to be unchecked.
daniela

Java.lang.ClassNotFoundException error when running form

Hello,
On a Windows 2003 64 bits server I have installed Oracle Application Server 10gR2 10.1.2.0.2 (Infrastructure + Business Intelligence and Forms option). I also upgraded to Portal 10.1.4. All components are up and running.
I wanted to test if Forms services are functional using the test form provided by OAS at installation (test.fmb/.fmx).
Steps executed:
1) Start -> Programs ->Oracle Application Server 10g -> Forms Services -> Run a form on the web for form=test.fmx
or in the IE browser:
2) http://pwr-hp-srv.replynet.prv:7778/forms/frmservlet?form=test.fmx
The applet is not starting and I receive the following error:
java.lang.ClassNotFoundException: oracle.forms.engine.Main
What does this mean? What should I do to make it work?
Any help will be appreciated.
Tahnk you.
daniela

Hello again,
I solved the problem.
In Control Panel -> JInitiator administration console , the option "Use browser settings" has to be unchecked.
daniela

Error deploying task form - java.lang.ClassNotFoundException

Hello,
I' am trying to deploy a task form to my soa server (JDeveloper 11.1.1, WebLogic Server 10.3.1, SOA Suite 11.1.1) and get the following error message:
[05:05:26 PM] [Deployer:149034]An exception occurred for task [Deployer:149026]deploy application MyTask on soa_server1.: Failed to load webapp: 'MyTask.war'.
[05:05:26 PM] Weblogic Server Exception: weblogic.application.ModuleException: Failed to load webapp: 'MyTask.war'
[05:05:26 PM] Caused by: java.lang.ClassNotFoundException: oracle.bpel.services.workflow.client.worklist.servlet.IntegrateTaskFlowWithTask
[05:05:26 PM] See server logs or server console for more details.
[05:05:26 PM] weblogic.application.ModuleException: Failed to load webapp: 'MyTask.war'
I've already tried to set the classpath for "bpm-services.jar" in "setDomainEnv.cmd", but afterwards I couldn't deploy the whole soa-infra.
Does anybody have an idea?
Thank's a lot.

Hi,
The two projects are part of same application right.
In your application navigator, you will be seeing those two projects. But there will be a drop down in the application navigator to select/open different applications.
You have right click on that application name. You will get a deploy option. Deploy it now. The thing is, task form app is a EAR application. You will get EAR option only from Application level not from Project level.
Application 1
+
+
----> CompositeProject
-----> TaskformProject
You should deploy the Application to deploy the task form. To deploy the composite, deploy the composite. No need to deploy the Taskform project seperately.
Edited by: Baskar Mookkan on Sep 9, 2009 5:54 PM

Oracle.forms.engine.Main not found.java.lang.ClassNotFoundException error

Hi Members,
I am getting the oracle.forms.engine.Main not found.java.lang.ClassNotFoundException error when trying to access Oracle forms using APEX 2.2.1 and SSO.
load:class.oracle.forms.engine.Main not found
The forms have been compiled, forms path setup properly and the setup required to run forms seems to be right. Jinitiator has also been installed.
I have searched the forums and tried everything. I have checked jinitiator settings, cleared cache and even reinstalled it. Do you have any experience with this error? Appreciate any answers. Thanks.
Ravi.

Dear Friends,
I was also facing the same problem. to solve this, i have uninstalled Oracle Jinitiator. Cleared all the temporary internet files & cookies. Then while running the form, when it asks to install JInitiator, i have specified a different path for jinitiator, For Example, By default it asks for C:\programfiles, i have changed it to c:\manish directory.
This has solved my problem. Probably this also help you.
Regards,
Manish Trivedi,
India

Error oracle.forms.engine.Main not found.java.lang.ClassNotFoundException

Hi all,
I tried to update oracle_logo.gif in forms jar which is in f90all_jinit jar. I placed my icon in forms\oracle\forms\icons and renamed it as oracle_logo.gif while removing the existing one. Then I did jar the forms and placed that in f90all_jinit and again did jar f90all_jinit. Then, I placed this in ORACLE-HOME/forms90/java. When I tried to run the form...the form could not open and the java console shows this..
Loading http://<MACHINE_NAME>:8888/forms90/java/f90all_jinit.jar from JAR cache
load: class oracle.forms.engine.Main not found.java.lang.ClassNotFoundException: java.io.IOException: open HTTP connection failed. at sun.applet.AppletClassLoader.getBytes(Unknown Source) at sun.applet.AppletClassLoader.access$100(Unknown Source) at sun.applet.AppletClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.applet.AppletClassLoader.findClass(Unknown Source) at sun.plugin.security.PluginClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.applet.AppletClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.applet.AppletClassLoader.loadCode(Unknown Source) at sun.applet.AppletPanel.createApplet(Unknown Source) at sun.plugin.AppletViewer.createApplet(Unknown Source) at sun.applet.AppletPanel.runLoader(Unknown Source) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
Can anyone guide me on how to get rid of this error ? Strange thing is that I've removed that f90all_jinit.jar and placed back the existing one (I took backup). But still it's showing the same error and not opening the form. I could and can not do anything without this error corrected.
Please suggest me as soon as possible...
thank you
madhu.

Dear Friends,
I was also facing the same problem. to solve this, i have uninstalled Oracle Jinitiator. Cleared all the temporary internet files & cookies. Then while running the form, when it asks to install JInitiator, i have specified a different path for jinitiator, For Example, By default it asks for C:\programfiles, i have changed it to c:\manish directory.
This has solved my problem. Probably this also help you.
Regards,
Manish Trivedi,
India

Error: when connecting to sqlServer2005 java.lang.ClassNotFoundException:

Hi SDN,
I am trying to connect to sqlServer2005 using the following code
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection con = java.sql.DriverManager.getConnection("jdbc:sqlserver://obtdev15:1433;DatabaseName=O50");
response.write("connection succeded<br>");
Statement st= con.createStatement();
response.write("statement created<br>");
ResultSet c = st.executeQuery("select * from [SAPO50DB].[OGP_PROJECT]");
response.write(" rows selected-->" + c.getString("PROJECTNAME"));
}catch(Exception e){
e.printStackTrace();
response.write("exception in --"+e);
when i execute it, it throws the following exception
<b>java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver Found in negative cache -
Loader Info -
ClassLoader name: [com.sapportals.portal.prt.util.ApplicationClassLoader@b460e20] Parent loader name: [com.sapportals.portal.prt.util.AutoClassLoader@a52a72a] References: not registered! Resources: F:\usr\sap\O50\DVEBMGS50\j2ee\cluster\server0\apps\sap.com\irj\servlet_jsp\irj\root\WEB-INF\portal\portalapps\ConnectingtoDB\lib\api.jar -
</b>
Please suggest me to rectify the above error.
your help will be awarded.
Thanks in Advance.
Regards
Basha

Hi Basha,
basically, your application is missing a java class. However, the proper way to connect to a database is discussed in this <a href="https://www.sdn.sap.com/irj/sdn/thread?threadID=86307">thread</a>.
Follow Detlev's advise:
<i>In general, using a J2EE server means that you have a DB connection pool at hand where you can attach your database and then retrieve the Datasource object from the JNDI. That way, you won't have to care about connection pooling etc, and using tools like oject-relational-mappers also is quite easy, for they also expect just the Datasource or even better the JNDI lookup name.</i>
You will find detailed information in the<a href="http://help.sap.com/saphelp_nw04/helpdata/de/bb/69da54d8aedc419d46d9ea074e4d41/frameset.htm">SAP Library</a>.
Best regards,
Martin

Java.lang.ClassNotFoundException: oracle.forms.engine.Main

I got this error when opening my forms, in java console, it says the frmall.jar file cannot be downloaded.
I tried to get access the file with http://192.168.3.44:9001/forms/java/frmall.jar , it displays 404 page not found.
I think the virtual path defined in forms.conf is not working at all. Because I tried to put a html file under each of the directory, none of them are accessible.
RewriteRule ^/forms/java/(..*) /workaroundjava/$1 [PT]
AliasMatch ^/workaroundjava/(..*) "/home/oracle/Oracle/Middleware/Oracle_FRHome1/forms/java/$1"
RewriteRule ^/forms/html/(..*) /workaroundhtml/$1 [PT]
AliasMatch ^/workaroundhtml/(..*) "/home/oracle/Oracle/Middleware/asinst_1/config/FormsComponent/forms/html/$1"
RewriteRule ^/forms/webutil/(..*) /workaroundwebutil/$1 [PT]
AliasMatch ^/workaroundwebutil/(..*) "/home/oracle/Oracle/Middleware/Oracle_FRHome1/forms/webutil/$1"
What might be the problem ?
Here is the java console log :
network: Cache entry not found [url: http://192.168.3.44:9001/forms/java/frmall.jar, version: null]
network: Connecting http://192.168.3.44:9001/forms/java/frmall.jar with proxy=DIRECT
java.io.FileNotFoundException: http://192.168.3.44:9001/forms/java/frmall.jar
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.downloadJAR(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.access$000(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFileInternal(Unknown Source)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$1000(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.<init>(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
basic: load: class oracle.forms.engine.Main not found.
java.lang.ClassNotFoundException: oracle.forms.engine.Main
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Ignored exception: java.lang.ClassNotFoundException: oracle.forms.engine.Main
basic: Dialog type is not candidate for embedding
basic: Removed progress listener: sun.plugin.util.ProgressMonitorAdapter@1e966fb
security: Reset deny session certificate store

In your Forms/Java folder ensure that frmall.jar is present
Also in your formsweb.cfg file add the jars in archive.

Netlet Error ;java.lang.ClassNotFoundException: netscape.javascript.JSObjec

Im using Iexplorer 6 winXP.
During loading a netlet i got this error:
java.lang.ClassNotFoundException: netscape.javascript.JSObject
     at com/ms/vm/loader/URLClassLoader.loadClass
     at java/lang/ClassLoader.loadClassInternal
     at com/sco/tta/client/portal/Mediator.init
     at com/ms/applet/AppletPanel.securedCall0
     at com/ms/applet/AppletPanel.securedCall
     at com/ms/applet/AppletPanel.processSentEvent
     at com/ms/applet/AppletPanel.processSentEvent
     at com/ms/applet/AppletPanel.run
     at java/lang/Thread.run
The first error message was that netscape was detected (unleless i was using ie) I erase the security manager as described earlier in this forum, but nothing, so i erase all file containing netscape, and now my netlet doesnt even start!
What sould I do?

Hi,
Can you elaborate on your problem ? Also if you are using the netlet, please provide complete java console output
Thanks!
Satish

Windows Vista "java.lang.ClassNotFoundException: loader.class" error.

Hello,
Whenever I try to visit websites that have a java applet I get a dialogue with the following error:
java.lang.ClassNotFoundException: loader.class.
I have tried uninstalling/reinstalling java, and also adding the -xmx and -xms parameters for java applet runtime setting in control panel with various values from 128m to 1g.
The applet at http://www.java.com/en/download/installed.jsp?detect=jre&try=1 does work and reports "CONGRATULATIONS, you have the Latest version of Java!", "Java Runtime Version 1.6.0."
I have been experiencing this problem ever since I installed Windows Vista Home Premium a day or two ago. Any help is appreciated.
Regards
Greg
=====================================
Full output from Java Console
=====================================
Java Plug-in 1.6.0
Using JRE version 1.6.0 Java HotSpot(TM) Client VM
User home directory = C:\Users\Greg Taylor
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
load: class loader.class not found.
java.lang.ClassNotFoundException: loader.class
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 10 more
java.lang.ClassNotFoundException: loader.class
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 10 more

ive been having the same problems, if youve resolved this problem, please tell me.
all help is appreciated

Solve this error pls 'java.lang.classNotFoundException' (For J2ME, WT2.5.2)

Hi All,
I am a new learner in J2ME. I m using WT2.5.2. When i press button to execute 'Hello MIDlet' program it shows
"Exception:java.lang.classNotFoundException" - this error in the Default Phone screen
and
the following ERROR shows in the Wirless Toolkit (WT) editior::
Project "HelloSuite" loaded
Project settings saved
Building "HelloSuite"
Build complete
Running with storage root C:\Users\Kalam\j2mewtk\2.5.2\appdb\temp.DefaultColorPhone2
Running with locale: English_United Kingdom.1252
Running in the identified_third_party security domain
Unable to create MIDlet HelloMIDIlet
java.lang.ClassNotFoundException: HelloMIDIlet
     at com.sun.midp.midlet.MIDletState.createMIDlet(+29)
     at com.sun.midp.midlet.Selector.run(+22)
i can run the demo program but my one is not running. i copy the program from java tutorial.
Can u pls solve my problem and encourge me to work with J2ME. Thank u very much my friends.
thnx
Kalam

Hi Darryl,
I saved this code as a "HelloMIDlet.java" in src folder of WT [and the "HelloSuite" as Midlet name, when we create project in WT u know it asks for Midlet name.
this code doesn't have compile time error.
it got runtime error cas in bin it got - HelloSuite.jd, MANIFEST.MF , there should be one more file which is .jar but it doesn't create.
i hope now u understand whts the error can u pls tell me or can u tell me the source how can i learn more about this.
thnx
kalam

Form error in portal (java.lang.ClassNotFoundException)

Similar Messages

Maybe you are looking for