Exception when trying to use JDeveloper

My name is Charles Ajah.My version of JDeveloper is version 9.0.5.1
After start up,clicking on any item throws up an exception.On the JDeveloper window only the Menu bar is displayed after start up.The following Exception stack trace is thrown on trying to click on any menu item option for e.g FILE/OPEN.
+java.lang.NullPointerException at oracle.ide.Ide.getActiveWorkspace(Ide.java:287) at oracle.ide.IdeContext.<init>(IdeContext.java:70) at oracle.ide.IdeContext.<init>(IdeContext.java:152) at oracle.ideimpl.explorer.ExplorerWindowImpl.getContext(ExplorerWindowImpl.java:203) at oracle.ide.IdeAction$1.run(IdeAction.java:855) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178) at java.awt.EventQueue.dispatchEvent(EventQueue.java:454) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137) at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)

NullPointerException at RSCClient

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Exception when trying to use 1-char long table name (or bug in ojdbc?)

Hello,
I`ve got exception while trying to prepare SQL statement using "prepareStatement(String sql, String columnNames[])"
Please have a look at the following test
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java.sql.SQLException: Invalid argument(s) in call
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Has anyone ever faced the same problem?
Looks like a bug in JDBC driver... Or may be it is a known issue which I`m now aware of.
p.s. I`m using Oracle JDBC v. 11.2.0.1.0.

Well... this is definitelly not a requirement.
The code snippet came from the test (junit) for something which is much bigger. And of course the 1-char long table name has nothing to do with desing. At all.
We have a system where a user defines (named) xml structures, so to say. The structures are then "translated" into DB entities. So the result DB schema is fully auto-generated. The system supports 4 different SQL dialects. Oracle is just one of them.
Having restrictions like "name of a structure must be at least two characters" is no problem. But I still can`t believe Oracle has such a limitation. It does not sound logical (to me at least). And I had a hope may be someone has an explanation for that thing.
The code above works just fine if I do not request certain columns back after the statement is executed. (e.g. without the second parameter).
But anyway... I would post a bug for this, if I knew where to post it to :)
Thanks.

Exception when trying to use web service login method

Hi all,
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<?xml version='1.0' encoding='UTF-8'?>
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Edited by: dvm on Nov 11, 2008 7:22 AM

Well... this is definitelly not a requirement.
The code snippet came from the test (junit) for something which is much bigger. And of course the 1-char long table name has nothing to do with desing. At all.
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Having restrictions like "name of a structure must be at least two characters" is no problem. But I still can`t believe Oracle has such a limitation. It does not sound logical (to me at least). And I had a hope may be someone has an explanation for that thing.
The code above works just fine if I do not request certain columns back after the statement is executed. (e.g. without the second parameter).
But anyway... I would post a bug for this, if I knew where to post it to :)
Thanks.

Exception when trying to use page flow diagrammer

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Getting exception when trying to get taskdetails url using BPM worklist api

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wfSvcClient,
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Jul 21, 2011 11:24:40 AM oracle.bpel.services.common.ServicesLogger __log
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at oracle.bpel.services.workflow.client.worklist.util.TaskFlowPropsUtil.getServerInfoForWeblogicServer(TaskFlowPropsUtil.java:491)
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at oracle.bpel.services.workflow.worklist.api.util.WorklistUtil.getDefaultURLPrefix(WorklistUtil.java:264)
at oracle.bpel.services.workflow.worklist.api.util.WorklistUtil.getTaskDisplayURL(WorklistUtil.java:353)
at oracle.bpel.services.workflow.worklist.api.util.WorklistUtil.getTaskDisplayURL(WorklistUtil.java:293)
at com.test.WorflowServiceClient.main(WorflowServiceClient.java:198)
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at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:662)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at oracle.as.jmx.framework.config.session.ConfigurationMBeanServerImpl.getAttribute(ConfigurationMBeanServerImpl.java:210)
at oracle.soa.common.util.PlatformUtils.getServerInfo(PlatformUtils.java:78)
... 7 more
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String url =
WorklistUtil.getTaskDisplayURL(wfSvcClient,
ctx, task, null,
"worklist", parameters);
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Can you tell me what could be the reason for the exception?

Exception when trying to run an Web Application that uses a Web service

Hello All,
I get an exception when trying to run an Web Application that uses a Web service. The web application is a WebDynpro Application.(an application similar to the one "Using an Email Web Service in Web Dynpro" in the tutorial section of Web Dynpro but using a different web service)
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Hello,
Like you said it was the problem with url.
The webservice I used is actually running on the local machine (where the NetWeaver developer studio is installed); so in the url I had specified localhost. But I deployed the application on another server(SAP J2EE Engine). That is why it didn't work. On changing the url as required, the application is working fine.
Thanks !
Regards,
Loveline.

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That is expected since a double is converted to a Oracle NUMBER before passing it to the database and Oracle NUMBER does not support 1.0e-131, the range is 1E-130 .. 10E125.
Look at the SQL output below,
SQL> select to_char(to_number(1.0e-131)) from dual;
T
0
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TO_CHAR(TO_NUMBER(1.0E-130))
1.000000000000000000000000000000000E-130
==
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eg:
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==
hope this helps.
Ashok

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Hi,
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Poll
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RespondedMemberSet=[]
LeftMemberSet=[]
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Thanks.

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Date : 03/08/2006
Time : 16:22:59:248
Message : DataSource CORP_LDAP: Naming exception when trying to create principal ***************************************************************************
com.sap.security.core.persistence.imp.PrincipalDatabagMaint Wed Mar 08 16:22:59 CST 2006
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Type: USER
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"com.sap.security.core.usermanagement"|->"department" (no time limit)="CI&T"
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"com.sap.security.core.usermanagement"|->"company" (no time limit)=""
"com.sap.security.core.usermanagement"|->"accessibilitylevel" (no time limit)="0"
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Category : /System/Security/Usermanagement
Location : com.sap.security.core.persistence
Application : sap.com/com.sap.security.core.admin
Thread : SAPEngine_Application_Thread[impl:3]_22
Datasource : 1141856104605:C:\usr\sap\J2E\JC00\j2ee\cluster\server0\log\system\security.log
Message ID : 000D60DD8A4D00540000001C0000136000040E8333C9FD7C
Source Name : /System/Security/Usermanagement
Argument Objs : CORP_LDAP,***************************************************************************
com.sap.security.core.persistence.imp.PrincipalDatabagMaint Wed Mar 08 16:22:59 CST 2006
UniqueID: USER.CORP_LDAP.testuser
Type: USER
Home data source: CORP_LDAP
Private id part: testuser
"com.sap.security.core.usermanagement"|->"uniquename" (no time limit)="testuser"
"com.sap.security.core.usermanagement"|->"department" (no time limit)="CI&T"
"com.sap.security.core.usermanagement"|->"PRINCIPAL_CREATION_DATE" (no time limit)="0001141856579248"
"com.sap.security.core.usermanagement"|->"firstname" (no time limit)="user"
"com.sap.security.core.usermanagement"|->"lastname" (no time limit)="test"
"com.sap.security.core.usermanagement"|->"PRINCIPAL_TYPE_ATTRIBUTE" (no time limit)="USER"
"com.sap.security.core.usermanagement"|->"email" (no time limit)="[email protected]"
"com.sap.security.core.usermanagement"|->"company" (no time limit)=""
"com.sap.security.core.usermanagement"|->"accessibilitylevel" (no time limit)="0"
Arguments : CORP_LDAP,***************************************************************************
com.sap.security.core.persistence.imp.PrincipalDatabagMaint Wed Mar 08 16:22:59 CST 2006
UniqueID: USER.CORP_LDAP.testuser
Type: USER
Home data source: CORP_LDAP
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"com.sap.security.core.usermanagement"|->"uniquename" (no time limit)="testuser"
"com.sap.security.core.usermanagement"|->"department" (no time limit)="CI&T"
"com.sap.security.core.usermanagement"|->"PRINCIPAL_CREATION_DATE" (no time limit)="0001141856579248"
"com.sap.security.core.usermanagement"|->"firstname" (no time limit)="user"
"com.sap.security.core.usermanagement"|->"lastname" (no time limit)="test"
"com.sap.security.core.usermanagement"|->"PRINCIPAL_TYPE_ATTRIBUTE" (no time limit)="USER"
"com.sap.security.core.usermanagement"|->"email" (no time limit)="[email protected]"
"com.sap.security.core.usermanagement"|->"company" (no time limit)=""
"com.sap.security.core.usermanagement"|->"accessibilitylevel" (no time limit)="0"
Dsr Component : <masked id>_J2E_7234450
Dsr Transaction : 79521ee0aef011da9168000d60dd8a4d
Dsr User : Administrator
Indent : 0
Level : 0
Message Code :
Message Type : 1
Relatives : com.sap.security.core.persistence
Resource Bundlename :
Session : 200
Source : /System/Security/Usermanagement
ThreadObject : SAPEngine_Application_Thread[impl:3]_22
Transaction :
User : Administrator
Where can I find the initial NamingException?

Hi All,
Thanks for your replies and SORRY for my late response.
Now, what I actually want is that though my UME is connected to LDAP i want to the portal admin to be able to create users in the portal DB. I checked my UME configuration and it says
Microsoft ADS (Deep Hheirarchy) + Database
and the name of the configuration file is
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Does the portal has any restriction like at any given point of time only one of the user stores can be active? Doesnt the portal allow both the user stores to be active at a time?
regards,
PK

Exception when trying to create pool Object

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at CMPServer._ProductHome_Stub.create(Unknown Source)
at CMPClient.SwingClient.AddRow_ButtonActionPerformed(SwingClient.java:127)
at CMPClient.SwingClient.access$100(SwingClient.java:24)
at CMPClient.SwingClient$2.actionPerformed(SwingClient.java:89)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1767)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1820)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:419)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:258)
at java.awt.Component.processMouseEvent(Component.java:5021)
at java.awt.Component.processEvent(Component.java:4818)
at java.awt.Container.processEvent(Container.java:1525)
at java.awt.Component.dispatchEventImpl(Component.java:3526)
at java.awt.Container.dispatchEventImpl(Container.java:1582)
at java.awt.Component.dispatchEvent(Component.java:3367)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3359)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3074)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3004)
at java.awt.Container.dispatchEventImpl(Container.java:1568)
at java.awt.Window.dispatchEventImpl(Window.java:1581)
at java.awt.Component.dispatchEvent(Component.java:3367)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)
Caused by: java.rmi.RemoteException: nested exception is: java.lang.RuntimeException: Caught Exception when trying to create pool Object ; nested exception is:
java.lang.RuntimeException: Caught Exception when trying to create pool Object
at com.sun.enterprise.iiop.POAProtocolMgr.mapException(Unknown Source)
at com.sun.ejb.containers.BaseContainer.postInvoke(Unknown Source)
at CMPServer.ProductEJB2024414397_ConcreteImpl_RemoteHomeImpl.create(ProductEJB2024414397_ConcreteImpl_RemoteHomeImpl.java:33)
at CMPServer._ProductEJB2024414397_ConcreteImpl_RemoteHomeImpl_Tie._invoke(Unknown Source)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatchToServant(Unknown Source)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.internalDispatch(Unknown Source)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatch(Unknown Source)
at com.sun.corba.ee.internal.iiop.ORB.process(Unknown Source)
at com.sun.corba.ee.internal.iiop.RequestProcessor.process(Unknown Source)
at com.iplanet.ias.corba.ee.internal.iiop.ServicableWrapper.service(Unknown Source)
at com.iplanet.ias.util.threadpool.FastThreadPool$ThreadPoolThread.run(Unknown Source)
at java.lang.Thread.run(Thread.java:536)
Caused by: java.lang.RuntimeException: Caught Exception when trying to create pool Object
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(Unknown Source)
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(Unknown Source)
at com.sun.ejb.containers.EntityContainer.getPooledEJB(Unknown Source)
at com.sun.ejb.containers.EntityContainer.getContext(Unknown Source)
at com.sun.ejb.containers.BaseContainer.preInvoke(Unknown Source)
at CMPServer.ProductEJB2024414397_ConcreteImpl_RemoteHomeImpl.create(ProductEJB2024414397_ConcreteImpl_RemoteHomeImpl.java:25)
... 9 more
Caused by: javax.ejb.EJBException: nested exception is: java.lang.NullPointerException
at com.sun.ejb.containers.EntityContainer$EntityContextFactory.create(Unknown Source)
... 15 more
Any thoughts on why this exception is being thrown?
Thanks for any help!
Richard

this sample has been tested by the SunONE TOOLs QA
and is working. Please check your deployment descriptors
and use the cmp samples which come with S1AS to see if your
descriptors are correct.

Sign in problems when trying to use Skype WiFi

I have a tablet that I am trying to connect to Skype WiFi and keep getting looped around to the sign-in screen. It tells me "You're already on line", but I can't do anything after that. I just have the "Learn More" button. I have unstalled and installed Skype WiFi twice and it still will not open. None of your instructions or guide are helping me.
Need Help
Added the text, "...when trying to use Skype WiFi" to the subject/title for clarity.

hi,
The call to the function 'wwpre_api_util.get_names_table' is not returning any data. so, you are getting an exception. Try adding an exception block for NO_DATA_FOUND and print some message.
--Sriram

Page/JNI: Exception when trying to connect in 1,page/ContentFetcher InterruptedIOExce

We have upgraded to fro m 3.0.8 portal 3.0.9.8.2 9iAS 1.0.2.2 on database 8.1.7
the system is very fast and run for sometime but after a while we see the following errors in Jserv.log file.
this error causes the whole system to hang and we have to restart apache/jserv.
Any light on this issue will be helpful and very much appreciated.
thanks,
Sunil Bontha
25/07/2001 14:07:51:388 CEST] Viewer/oracle.discoiv.Disco4iv: init
[25/07/2001 14:07:51:388 CEST] Viewer/oracle.discoiv.Disco4iv: Initializing Discoverer 4i Viewer (4.1.37.82)
[25/07/2001 14:09:15:219 CEST] page/oracle.webdb.page.ParallelServlet: init
[25/07/2001 14:09:15:249 CEST] page/JNI: Cache is enabled.
[25/07/2001 14:09:15:299 CEST] page/Starting a pool of 25 handlers.
[25/07/2001 14:09:43:820 CEST] page/JNI: Exception when trying to connect in 1.
[25/07/2001 14:09:43:830 CEST] page/Timeout occurred, label=145 url=http://www.myserver.com/pls/pmsportal30/!PMSPORTAL30.wwpro_app_provider.execute_portlet [25/07/2001 14:09:43:830 CEST] page/ContentFetcher InterruptedIOException Caught, Fetcher Timedout name=content-fetcher23
[25/07/2001 14:09:43:840 CEST] page/JNI: Exception when trying to connect in 1.
[25/07/2001 14:09:43:840 CEST] page/Timeout occurred, label=293 url=http://www.myserver.com/pls/pmsportal30/!PMSPORTAL30.wwpro_app_provider.execute_portlet [25/07/2001 14:09:43:840 CEST] page/ContentFetcher InterruptedIOException Caught, Fetcher Timedout name=content-fetcher22
[25/07/2001 14:09:53:864 CEST] page/JNI: Exception when trying to connect in 1.

Hi Avi,
My application is a standalone application trying to access MBeans present in oc4j.
I tried
using the code
props.put(Context.INITIAL_CONTEXT_FACTORY ,"oracle.j2ee.rmi.RMIInitialContextFactory");
obj = (ManagementHome) ctx.lookup("ejb/mgmt/MEJB");
but i am getting the following error.
javax.naming.NameNotFoundException: ejb/mgmt/MEJB not found
at com.evermind.server.rmi.RMIClientContext.lookup(RMIClientContext.java
:45)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at TestMBean.doSomething(TestMBean.java:90)
at TestMBean.main(TestMBean.java:237)
java.lang.NullPointerException
at TestMBean.doSomething(TestMBean.java:107)
at TestMBean.main(TestMBean.java:237)
Regards
Siva

Exception when trying to post to a page

In NetD we created and submitted a form with JavaScript.
The form looked something like this
<FORM ACTION=pgXYZ METHOD=POST>
<INPUT TYPE=hidden NAME=SPIDERSESSION VALUE=12345>
</FORM>
So now in Jato, we're trying to do the exact same thing,
except that instead of SPIDERSESSION, we use the three Jato
variables. Now the form is like this:
<FORM ACTION=pgXYZ METHOD=POST>
<INPUT TYPE=hidden NAME=GXHC_GX_jst VALUE=12345>
<INPUT TYPE=hidden NAME=GXHC_gx_session_id_ VALUE=12345>
<INPUT TYPE=hidden NAME=pageAttributes VALUE=12345>
</FORM>
Notice we're not submitting to a handler, but just to the page itself.
When we do this, we get an exception:
[02/Oct/2001 16:29:59:4] error: Exception: SERVLET-execution_failed:
Error in executing servlet portalServlet:
javax.servlet.ServletException: The request was not be handled by the
specified handler
Exception Stack Trace:
javax.servlet.ServletException: The request was not be handled by the
specified handler^M
at
com.putnaminvestments.common.jato.ApplicationServletBase.dispatchReque
st(ApplicationServletBase.java:668)^M
at
com.putnaminvestments.common.jato.ApplicationServletBase.processReques
t(ApplicationServletBase.java:428)^M
at
com.putnaminvestments.common.jato.ApplicationServletBase.doPost(Applic
ationServletBase.java:296)^M
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:772)^M
at
com.putnaminvestments.bp.bpServletBase.service(bpServletBase.java:139)
^M
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:865)^M
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)^M
at
com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknow
n Source)^M
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)^M
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)^M
at com.kivasoft.thread.ThreadBasic.run(Native Method)^M
at java.lang.Thread.run(Thread.java:479)^M
So what are we missing??

Thanks Kostas, good answer.
Todd
----- Original Message -----
From: "Kostas Morfis" <kmorfis@i...>
Sent: Tuesday, October 02, 2001 4:31 PM
Subject: RE: [iPlanet-JATO] Exception when trying to post to a page
Hi Mark
You are trying to submit to a view bean using java script right ?
Notice we're not submitting to a handler, but just to the page itself.You are actually submitting the request to your JATO selvlet base, is that
you intention ?
The exception is being thrown because there is no request handler found.
If you are trying invoke a handleBtnXXXmethod then your form action would
look something like,
<form method="post" action="../myServlet/pgMyPage?pgMypage.btnMyButton=">
This adds to the request an appropriate handler as a parameter. Another
option could be to add a hidden field
with the same name as your button.
Attempting to post the form without specifying a request handler will not
work eg:
<form method="post" action="../myServlet/pgMyPage">
This throws a ServletException("The request was not be handled by the
specified handler")
because you are doing a post to ViewBean from a form which implies youwant
to handle some kind web action.
The way JATO enforces this is to check for the prescence of pageAttributes
in the request (implemented using hidden fields)
which you have in your form.
Kostas
-----Original Message-----
From: Mark_Dubinsky@p... [mailto:<a href="/group/SunONE-JATO/post?protectID=174166091163159191130171186101229144026098131198043123114199021239115076086020224">Mark_Dubinsky@p...</a>]
Sent: Tuesday, October 02, 2001 10:04 PM
Subject: [iPlanet-JATO] Exception when trying to post to a page
In NetD we created and submitted a form with JavaScript.
The form looked something like this
<FORM ACTION=pgXYZ METHOD=POST>
<INPUT TYPE=hidden NAME=SPIDERSESSION VALUE=12345>
</FORM>
So now in Jato, we're trying to do the exact same thing,
except that instead of SPIDERSESSION, we use the three Jato
variables. Now the form is like this:
<FORM ACTION=pgXYZ METHOD=POST>
<INPUT TYPE=hidden NAME=GXHC_GX_jst VALUE=12345>
<INPUT TYPE=hidden NAME=GXHC_gx_session_id_ VALUE=12345>
<INPUT TYPE=hidden NAME=pageAttributes VALUE=12345>
</FORM>
Notice we're not submitting to a handler, but just to the page itself.
When we do this, we get an exception:
[02/Oct/2001 16:29:59:4] error: Exception: SERVLET-execution_failed:
Error in executing servlet portalServlet:
javax.servlet.ServletException: The request was not be handled by the
specified handler
Exception Stack Trace:
javax.servlet.ServletException: The request was not be handled by the
specified handler^M
at
com.putnaminvestments.common.jato.ApplicationServletBase.dispatchReque
st(ApplicationServletBase.java:668)^M
at
com.putnaminvestments.common.jato.ApplicationServletBase.processReques
t(ApplicationServletBase.java:428)^M
at
com.putnaminvestments.common.jato.ApplicationServletBase.doPost(Applic
ationServletBase.java:296)^M
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:772)^M
at
com.putnaminvestments.bp.bpServletBase.service(bpServletBase.java:139)
^M
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:865)^M
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)^M
at
com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknow
n Source)^M
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)^M
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)^M
at com.kivasoft.thread.ThreadBasic.run(Native Method)^M
at java.lang.Thread.run(Thread.java:479)^M
So what are we missing??
[email protected]
[Non-text portions of this message have been removed]
[email protected]

Exception when trying to run OneEJBHotelSample

I get the following exception when trying to run the one ejb hotel sample,
any clues as to what is wrong??
java.lang.IncompatibleClassChangeError: Unimplemented interface method
at javax.naming.spi.NamingManager.getURLObject(Compiled Code)
at javax.naming.spi.NamingManager.getURLContext(Compiled Code)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(Compiled Code)
at javax.naming.InitialContext.lookup(Compiled Code)
at client.JavaGUIClient.EJBHotelSample.getHotelSystemBean(Compiled Code)
at client.JavaGUIClient.EJBHotelSample.main(Compiled Code)
null

Hello,
Like you said it was the problem with url.
The webservice I used is actually running on the local machine (where the NetWeaver developer studio is installed); so in the url I had specified localhost. But I deployed the application on another server(SAP J2EE Engine). That is why it didn't work. On changing the url as required, the application is working fine.
Thanks !
Regards,
Loveline.

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