Dynamic JCo Connection
Hi Victor,
I see two options:
1: If you know at design time which JCO connections you want to use and that they are available on your system: create a Model for every connection.
2: If you want to create these connections dynamically change the JCO connection everytime you call your model like this:
IWDDynamicRFCModel model;
model = (IWDDynamicRFCModel) WDModelFactory.getModelInstance(ModelName.class);
model.setJcoClient(connection)
--> continue calling code.
or:
model.setSystemName(<<JCO ClientName>>)
see: [http://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/modelimpl/dynamicrfc/IWDDynamicRFCModel.html]
Regards,
Jeschael
Thanks J.V.
It helps me a lot
Similar Messages
-
Dynamic JCo Connection with Adaptive RFC Model 2
Hi gurus,
I'm trying to dinamically change a model data connector inside my web dynpro. I'm using an Adaptive RFC Model 2 to communicate with the R/3 backend. I've found that is possible to change the connector modifiyng the code inside the web dynpro. In detail I've found this example:
IWDDynamicRFCModel model1 = (IWDDynamicRFCModel) WDModelFactory.getModelInstance(Model1.class);
I put this code into wdDoInit method but I get the following error:
"<comp_name>.wdDoInit failed to create or init instance of model 'model_name' in scope NO_SCOPE with instanceId 'null'"
Furthermore I've used the deprecated Adaptive RFC Model and when I instantiate a model, ModelName m=new ModelName(), I see that the methods m.setJcoClient(client) and m.setSystemName(systemName) are visible, while when I try to do the same with Adaptive RFC Model 2, with my model m, the methods before there aren't.
So this is my question: is it possible to change data connector dinamically with Adaptive RFC Model 2?
Thanks a lotDear Lukinho,
You may try this ;
try {
IWDJCOClientConnection clientCon = WDSystemLandscape.getJCOClientConnection("<name of the JCO connection>");
String clientName = clientCon.getClientName();
String lang = clientCon.getLanguage();
String passowrd = clientCon.getPassword();
String sysID = clientCon.getSystemIdentifier();
String user = clientCon.getUser();
//etc...
} catch (WDSystemLandscapeException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
I got this code from the thread [Multiple Client Logon in JCO |Re: Multiple Client Logon in JCO;
Also have a look at this thread
[JCo Destination |Re: JCo Destination;
Hope it helps!!
Warm Regards
Upendra Agrawal -
Java-Program for JCO-Connection
Hallo experts!
I tried to get a Java-Program running which should establish JCO-Connection to a SAP-System and got the following error message:
java.lang.ExceptionInInitializerError: JCO.classInitialize(): Could not load middleware layer 'com.sap.mw.jco.rfc.MiddlewareRFC'
JCO.nativeInit(): Could not initialize dynamic link library librfc. Found version "640.0.144" but required at least version "640.0.161".
at com.sap.mw.jco.JCO.<clinit>(JCO.java:776)
at JCOTEST.main(JCOTEST.java:24)
Exception in thread "main"
Anyone got an idea?
Thanks for your help in advance.Thank you Jens,
it worked fine with the newest JCo-Download.
Now I seem to have some Network problem: ip not reached:
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connect_PM GWHOST=10.251.24.10, GWSERV=sapgw10, ASHOST=10.251.24.10, SYSNR=10
LOCATION CPIC (TCP/IP) on local host
ERROR partner not reached (host 10.251.24.10, service 3310)
I need to talk to our network manager in the firm.
Regards.
Thomas -
Error in JCO Connection prorgam
Hi Experts,
I am developing one tomcat application using servlet. In servlet i am connecting to R/3. For this i am writing JCO Connection code. This Java file is compiled, but while running the servlet in browser it is giving exception like
java.lang.ExceptionInInitializerError: JCO.classInitialize(): Could not load middleware layer 'com.sap.mw.jco.rfc.MiddlewareRFC'
JCO.nativeInit(): Could not initialize dynamic link library sapjcorfc [no sapjcorfc in java.library.path]. java.library.path [C:Tomcat 5.0bin;.;C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;C:jdk1.5.0_12bin;C:Program Files (x86)AdobeFlex Builder 2Flex SDK 2bin;C:j2mej2me_cldcbinwin32;C:j2memidp1.0.3fcsbin;C:jdk1.5.0_12libsapjco.jar]
com.sap.mw.jco.JCO.<clinit>(JCO.java:738)
ConnectToR3.getConnection(ConnectToR3.java:25)
HitServlet.doGet(HitServlet.java:29)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
How to slove this problem. Is their any other way to connect to SAP R/3 from Servlets. I created normal java program without servlets, it's wokring fine. But If paste the same code in servlets mean it is giving above Exception.
Please Help me........ Give any solution to this problem.
Regards,
Sunilsapjcorfc.dll is required on the server to handle jco connections.
It seems it is not there or if it is there but is not part of "path" environment variable on the server.
1) Go to you server. Search for this file and add the directory containing this file to path environment variable for server. You have to restart your server.
2) It runs in your local java program because your local java program runs in local JVM instance. And on your local machine you have the sapjcorfc.dll plus its folder being in part of path environment variable.
3) The servlet runs in ServletContext on the server JVM instance where the sapjcorfc.dll cann't located.
Regards,
Ashwani Kr Sharma -
Hi,
there is a way to create a dynamic JCO.Client?
I have this code:
JCO.Client jcoclient = JCO.createClient(
"data",
"data",
"password",
"it",
"10.140.5.122",
"12");
jcoclient.connect();
I want to get dynamically from the system the parameters for method "createClient". It's possible??There is a way??
THANS>
Andrea Ruocco wrote:
> Hi,
> there is a way to create a dynamic JCO.Client?
> I have this code:
>
>
> I want to get dynamically from the system the parameters for method "createClient". It's possible??There is a way??
> THANS
To avoid hard coding the JCO connection details, take a look at the [Destination Service API|http://help.sap.com/saphelp_nw04/helpdata/en/8b/8e7dac1e661d44bf2a676fd3948cc6/frameset.htm].
Here is a [blog|https://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/10300] on how to use the SAP Enterprise Connector (which is used to call JCOs) with the Destination Service API. Once the Destination service is set up, you can then create your JCO.client as follows
final InitialContext ctx = new InitialContext();
final DestinationService dstService = (DestinationService)ctx.lookup(DestinationService.JNDI_KEY);
if (dstService == null)
throw new NamingException("Destination Service not available");
RFCDestination dst;
// get the ERPR3 destination created in visual administrator
dst = (RFCDestination) dstService.getDestination("RFC", "ERPR3");
Properties jcoProperties = dst.getJCoProperties();
//Establish a direct connection
JCO.Client client = JCO.createClient(jcoProperties);
client.connect(); -
Change password for JCO connections
Hi,
In our landscape we have around 80-100 applications running and there are 300-400 JCO connections on an average. We have 4 servers like this. Earlier we used to have developers user id and password for JCO connections. Now we have decided to have a universal userid and password for all the JCo connections. My question is there any way by which we can change the passwords for all the JCO connections without going to each one of them individually as it is a hectic task.
Thanks & Regards,
VijithHi Vijith Kumar,
Look at the following blog:
/people/anilkumar.vippagunta2/blog/2007/02/06/dynamic-jco-creation
I guess that if you can create JCO by code you can also edit it...
Regards,
Omri -
JCO connection pool is exhausted
hi
I am using RFC module in my web dynpro application. When the application is used for sometime, the JCO connection will get exhusted. The JCO connection will not release itself. I can't find any method in web dynpro to release the connection manually. How can I solve this problem?Hi,
What is scope of the connection. View properties of MODELDATA and METADATA destinations.
You can change the scope of the connection..
or
wdContext.current<BAPI INPUT>Element().modelObject().modelInstance().disconnectIfAlive();
For more ways , give a forum search.. There are a lot of close forum posts.. Gud luc..
Regards
Bharathwaj -
Problem with JCo Connection Pool
Hi,
I have a problem with using an RFC Model in my WebApplication. So sometimes the access to the function block works, and sometimes it doesn't work. Now I know, that there is a problem with the connection pool. Look at this message:
com.sap.mw.jco.JCO$Exception: (106) JCO_ERROR_RESOURCE: Connection pool WD_X24_MODELDATA_DEST_CPIC_REKTO_DE_useDefinedUser is exhausted. The current pool size limit (max connections) is 10 connections.
So it looks like a problem with closing the JCo Connections after using. Do know where the problem is? Because I'm using many other function blocks with no problems.Hello,
You need to increase the pool size via Visual Administrator.
Server 0 -> Services -> JCO RFC Connections.
Change the pool size from there. I believe a restart is in order.
Regards,
Jan -
Dynamic Data Connection Parameter and Report Parameters
Post Author: despec
CA Forum: General
Hello to all,I am using a business view that is based on a dynamic data connection of 13 databases, each a different school. When I use the BV is a CXrystal Report (XI), it correctly, of course, uses the "read only" parameter for me to select a school. My problem arises when I try to enter a student name "list of values" parameter using that same dynamic data connection. After I select the "read only" school parameter, I then select that student name and immediately, the "read only" school parameter resets to "--". Therefore when I click okay, I get an error saying that my selection for the first parameter is invalid.Anyone have any suggestion on how I may be able to resolve this?Thanks,DavidHello,
Jsut a reminder this is not a Support Case Management system but for all to use.
Since you have BOE 3.1 you should have a valid support contract. Log into Service Market Place and create a case on line and a support Engineer will call you.
If you don't know how to then ask your Manager who is your SAP Account Super User and that person can add you to the list and give you a log in ID and password.
Thank you
Don -
Unable to close metadata jco connection
Hi Experts,
when checking the JCo Connection Pools in Web Dynpro Console, I found that all MetaData JCo are in use and unable to disconnect automatically.
the following is metadata jco destination setting
Maximal Pool Size 1
Maximum Connections 5
Connection Timeout 60
Maximum Wait Time 10
how can i do to close these jco connection?Hi Sidney,
I dont really understand why you want to remove the Jco connections. If you click on the "Remove" button as posted earlier by someone, it will completely remove your Jco configurations and you have to create them again on your own. SO, dont do that.
If you want to disconnect the Jco connection in webdynpro java, we can do that by using the following piece of code at the end of the connection process.
As far as I know, by default the Jco connections gets disconnected after certain time limit. Because, I never had to disconnect the Jco whenever I used one.
wdContext.currentModelElement().modelObject().modelInstance().disconnectIfAlive()
Regards,
Gopal. -
How to use a JCO connection pool in an EJB?
Hi *,
I want to build a WebService using SAP Web AS (J2EE Engine) that connects to a R/3 ERP (release 4.7).
I thought of building a stateless session bean that will be deployed as webservice. The session bean shall connect to the R/3 in order to call some BAPIs. I'd like to use a JCO connection pool. But I'm not sure, where I should create and destroy the connection pool. Are the EJB methods ejbCreate() and ejbRemove() the right ones? If so, my businness methods would just have to get a connection from the pool and call the BAPIs, right? If not, what do you suggest?
Another question: I already deployed a bean as webservice. Since not really knowing how to use the connection pool, I created a bean with one business method that creates a connection pool whenever it gets called. But if I have to change something in the bean so that I have to redeploy the bean I can't call my business method anymore, because JCO cannot load a native library once again, as it is already loaded, This leads to an exception. So I have to restart the complete engine everytime I redeploy my bean. Are there any workarounds for this problem? I'm not sure whether this is connected to the wrong use of the JCO connection pool.
Kind regards,
LarsHi *,
I want to build a WebService using SAP Web AS (J2EE Engine) that connects to a R/3 ERP (release 4.7).
I thought of building a stateless session bean that will be deployed as webservice. The session bean shall connect to the R/3 in order to call some BAPIs. I'd like to use a JCO connection pool. But I'm not sure, where I should create and destroy the connection pool. Are the EJB methods ejbCreate() and ejbRemove() the right ones? If so, my businness methods would just have to get a connection from the pool and call the BAPIs, right? If not, what do you suggest?
Another question: I already deployed a bean as webservice. Since not really knowing how to use the connection pool, I created a bean with one business method that creates a connection pool whenever it gets called. But if I have to change something in the bean so that I have to redeploy the bean I can't call my business method anymore, because JCO cannot load a native library once again, as it is already loaded, This leads to an exception. So I have to restart the complete engine everytime I redeploy my bean. Are there any workarounds for this problem? I'm not sure whether this is connected to the wrong use of the JCO connection pool.
Kind regards,
Lars -
Single Webdynpro Application with multiple JCO Connection ?
Hi Experts,
I have a strange requirement ......
We have a Webdynpro Application which is connected to
say (using JCO connection)
client:- A
now i want to connect the same Webdynpro application to
Client:- B which is again in the same server as the client A.
Please help me how to handle this.
how it possible to connect a single Webdynpro application to two different clients using JCO Connection.
Please help.
Points would be rewarded to helpful answers.
Regards,
Sanjyoti.Hi experts
We have to use wd application for both client at a same time e.g. as follow
Client A -
> Travel app--->Featches data from A for employee hired in client A ,in same server as B
Client B -
> Travel app--->Featches data from B for employee hired in client B , in same server as A
we are using same EP for both client but using diffrent roles for employees of both client.
Please reply asap. -
Error while obtaining JCO connection when creating JCO connection
Hey,
im having a problem when creating a JCO connection in the Web Dynpro Content Administrator. Creating the Modeldata (Application Data Data type) JCO Worked but when creating the JCO for the RFC Metadata (Dictionary Meta data) there is a problem:
In step 3.2 Msg server connection I cannot specify a system name and logon group, only the message server can be selected with the dropdown box.
After pushing the finish button i get the following stacktrace:
Failed to create new JCO client connection WD_RFC_METADATA_DEST: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection. at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:150) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at
com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at
com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at
com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at
com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at
com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at
com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at
com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:649) at
com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at
com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:248) at
com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at
com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at
com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at
com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at
com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at
com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at
com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at
com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at
com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at
com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at
com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at
com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at
com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at
com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at
java.security.AccessController.doPrivileged(Native Method) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95) at
com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160) Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for WD_RFC_METADATA_DEST at
com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:664) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:508) at
com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:248) at
com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:222) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:101) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:148) ... 30 more Caused by: java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:393) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:558) ... 35 more
We are running WebAS 640 SP 14 on Unix.
Greetings,
Hannes
Message was edited by: Hannes DeflooHi
Please configure your SLD. Your SLD holds the system definition. Define a SAP WebAS abap system and then try to create a Metadata connection using WebDynpro content administrator. Now you will be able to see the msg server defined in the dropdown. Also ensure that you have the message server entry in your services file.
Refer these links for SLD
http://help.sap.com/saphelp_nw04/helpdata/en/c9/dc37520bdf4b48bb8f6d4329f073d5/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/24/8fa93e08503614e10000000a114084/content.htm
Hope that helps.
regards
Ravi -
Error while creating jco connection for metadata?
Hi all,
we are using ep 6 sp 16.
I could create the JCO connection for application data but i am not able to create the jco connection for metadata for the same r3 server .
while creating the the connection
system name and logon group and disable
and when i click finish
it is giving following error
Failed to create new JCO client connection testmetadata: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection. at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:150) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:659) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(AccessController.java:180) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170) Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for testmetadata at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:670) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:486) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:252) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:226) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:148) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:659) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(AccessController.java:180) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170) Caused by: java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:606) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:564) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:486) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:252) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:226) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:148) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:659) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(AccessController.java:180) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Thanking.
RajendraHello Rajendra,
Good to hear from u. Let me try to give a soln for this problem of yours.
I think probably the logon group has not been specified in the backend.If thats the case then do the following:
Connect to the backend server for which you are trying to create the JCO. Run the transaction SMLG. It will show u the existing logon groups. carry out the following steps if the 'PUBLIC' group is not present in the list of logon groups.
Click on the create button. In the pop-up, type the logon as 'PUBLIC'. For the instance, select the F4 help and choose the existing instance number. Click on copy and click save. Try running the transaction /nsmlg and now it should show the logon group 'PUBLIC'.
When you create the JCO connection, it should now show the logon group 'PUBLIC'.
Regards,
Prathamesh. -
Error while obtaining JCO connection.
Hi I'm trying to put in place since BW-SEM RSPLAN the transaction, I'm pointing at my portal from the transaction RSPLSA
But when it signs the user gets the message Error while obtaining JCO connection.
I was reviewing my WebDynpro on my site by following these steps:
1 I will http://portal:port
2 I clicked Webdynpro
3 I click on Content Administrator
I clicked on 4 Maintain JCO destinations
and then I log shows the following:
Failed to process request. Please contact your system administrator.
[Hide]
Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
java.lang.NullPointerException
at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:485)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.updateJCOClientStatus(JCOConnectionsDetails.java:480)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:699)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:663)
... 39 more
See full exception chain for details.
System Environment
Client
Web Dynpro Client Type HTML Client
User agent Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
Version null
DOM version null
Client Type ns7
Client Type Profile nn7
ActiveX disabled
Cookies enabled
Frames enabled
Java Applets enabled
JavaScript enabled
Tables enabled
VB Script enabled
Server
Web Dynpro Runtime Vendor: SAP, build ID: 7.0014.20071210061512.0000 (release=645_VAL_REL, buildtime=2007-12-10:05:23:29[UTC], changelist=470565, host=pwdfm101), build date: Wed Oct 01 12:15:02 CDT 2008
J2EE Engine 7.00 patchlevel 109886.44
Java VM IBM J9 VM, version:2.3, vendor: IBM Corporation
Operating system AIX, version: 5.3, architecture: ppc64
Session & Other
Session Locale en_US
Time of Failure Thu Nov 06 16:00:23 CST 2008 (Java Time: 1226008823202)
Web Dynpro Code Generation Infos
sap.com/tcwdtools
No information available null
sap.com/tcwddispwda
No information available null
sap.com/tcwdcorecomp
No information available null
Detailed Error Information
Detailed Exception Chain
java.lang.NullPointerException
at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:485)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.updateJCOClientStatus(JCOConnectionsDetails.java:480)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:699)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:663)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.wdDoInit(JCOConnectionsDetails.java:121)
at com.sap.tc.webdynpro.tools.explorer.wdp.InternalJCOConnectionsDetails.wdDoInit(InternalJCOConnectionsDetails.java:262)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61)
at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:445)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:709)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.bind(ViewManager.java:555)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.makeVisible(ViewManager.java:789)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.performNavigation(ViewManager.java:296)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:767)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.navigate(ClientComponent.java:881)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doNavigation(WindowPhaseModel.java:498)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:144)
at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:319)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:713)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:666)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:250)
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:53)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(AccessController.java:219)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
What should I do??Hi Antonio,
Follow the below note for Jco related troubleshooting.
https://service.sap.com/sap/support/notes/919850
Are you able to see the 4 Jco connections green?
Regards,
Debasis.
Maybe you are looking for
-
Add .IFO extention to the Applications file
I built a Intranet to handle my stored movies. Want to access them simply by using an icon. I was able to do this in earlier versions of firefox but no longer. Mime dosen't seem to work in fact in reloading 3.0 it won't come up at all nor was I able
-
Hi, Please can you tell me the default maximum file size for an attachment in Case Management v12+? I am able to define a maximum attachment size but I am not able to see what the default is set to. Thank you Regards, Anthony
-
Problem with Dynamic Header setting with SOAP Adapter
Hi All, I'm trying to set SOAP Action dynamically. However, in some systems it's not working. I tested perfectly in one system. Right now I'm using PI service patch 14. Is it a bug in this pack? or anything needs to be done to enable this concept? Th
-
Hello folks, I am new to the Oracle VM, just installed the server and manager in the same machine. After that tried to access the manager from a second machine unsuccessfully. 1- I verified the server is up and running 2- I verified the oc4j service
-
Debugging a sourcecode that uses Antenna's "preprocessing" feature.
I wonder if there's a way to use Eclipse(or any other IDEs) to debug(stepping through, set breakpoints, etc.) a code that look something like this: //#ifdef conditionA public class Screen implements Runnable //#else public class Screen implements Run