Consuming utl_dbws webservice via proxy gives error (sometimes)

Hi all,
We provide a webservice for our clients, and some of them have reported they have issues calling a specific operation. Only clients who connect through a proxy have this problem. Others can call the service without issues.
When I browse to the wsdl (both from my local machine, and via an RDP-session to our customer's network) I get result, so I know the service itself works and that we can connect to it.
The service has 4 operations, each returning an xmltype.
When I call the first operation (from my machine aswell as the customer's machine), I get the correct result.
When I call the second operation from my machine, I get the expected result, but hen I call it from the customer's machine however (which connects via a proxy), the service errors out with following message:
ORA-29532: Java call terminated by uncaught Java exception: HTTP transport error: javax.xml.soap.SOAPException: java.security.PrivilegedActionException: javax.xml.soap.SOAPException: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML dir=ltr><HEAD><TITLE>The page cannot be displayed</TITLE>
<STYLE>A:link {
     FONT: 8pt/11pt verdana; COLOR: #ff0000
A:visited {
     FONT: 8pt/11pt verdana; COLOR: #4e4e4e
</STYLE>
<META content=NOINDEX name=ROBOTS>
<META http-equiv=Content-Type coI've written the entire SQLERRM to a table to be sure, but that's all there is in it.
The operation requires no parameters, so there isn't something wrong with my input.
The code i use to call the service is as follows:
      -- service en call aanmaken
      v_service := create_service(service_name => to_qname(i_name_space => NULL,
                                                           i_name       => get_ws_param_val(i_ws_code    => i_ws_code,
                                                                                            i_param_code => 'SERVICE_NAME')));
      v_call    := create_call(service_handle => v_service);
      -- proxy instellen indien nodig
      v_proxy := get_ws_param_val(i_ws_code => i_ws_code, i_param_code => 'HTTP_PROXY');
      IF v_proxy IS NOT NULL THEN
         set_http_proxy(httpproxy => v_proxy);
      END IF;
      -- endpoint instellen
      v_endpoint := get_ws_param_val(i_ws_code => i_ws_code, i_param_code => 'ENDPOINT');
      IF instr(lower(v_endpoint), '?wsdl') > 0 THEN
         v_endpoint := substr(v_endpoint, 1, length(v_endpoint) - 5);
      END IF;
      set_target_endpoint_address(call_handle => v_call, endpoint => v_endpoint);
      set_property(call_handle => v_call,
                   key         => 'SOAPACTION_USE',
                   VALUE       => get_operation_param_val(i_ws_code        => i_ws_code,
                                                          i_operation_code => i_ws_operation,
                                                          i_param_code     => 'SOAP_ACTION_USE'));
      set_property(call_handle => v_call,
                   key         => 'SOAPACTION_URI',
                   VALUE       => get_operation_param_val(i_ws_code        => i_ws_code,
                                                          i_operation_code => i_ws_operation,
                                                          i_param_code     => 'SOAP_ACTION_URI'));
      set_property(call_handle => v_call,
                   key         => 'OPERATION_STYLE',
                   VALUE       => get_ws_param_val(i_ws_code    => i_ws_code,
                                                   i_param_code => 'OPERATION_STYLE'));
      set_property(call_handle => v_call,
                   key         => 'ENCODINGSTYLE_URI',
                   VALUE       => get_ws_param_val(i_ws_code    => i_ws_code,
                                                   i_param_code => 'ENCODING_STYLE_URI'));
      -- eventueel username instellen
      v_username := get_ws_param_val(i_ws_code => i_ws_code, i_param_code => 'USERNAME');
      IF v_username IS NOT NULL THEN
         set_property(call_handle => v_call, key => 'USERNAME', VALUE => v_username);
         set_property(call_handle => v_call,
                      key         => 'PASSWORD',
                      VALUE       => get_ws_param_val(i_ws_code    => i_ws_code,
                                                      i_param_code => 'PASSWORD'));
      END IF;
      -- request opbouwen met parameters
      v_target_ns := get_ws_param_val(i_ws_code => i_ws_code, i_param_code => 'TARGET_NAMESPACE');
      v_req_root := get_operation_param_val(i_ws_code        => i_ws_code,
                                             i_operation_code => i_ws_operation,
                                             i_param_code     => 'REQUEST_ROOT');
      v_request   := xmltype('<' || v_req_root || ' xmlns="' || v_target_ns || '"/>');
      v_request   := v_request.appendchildxml(xpath      => '/' || v_req_root,
                                              value_expr => i_parameters.extract('/parameters/*'),
                                              namespace => 'xmlns="' || v_target_ns || '"');
      -- web service oproepen
      v_response := invoke(call_handle => v_call, request => v_request);
      -- vernietigen van gemaakte objecten
      release_call(call_handle => v_call);
      release_service(service_handle => v_service);
      RETURN v_response;The invoke procedure:
   -- Invokes a Document-style webservices in a synchronous
   -- request-response interaction mode.
   --   callHandle - the instance of the call
   --   request - a SOAPElement request
   --   Returns a SOAPElement response
   FUNCTION invoke(call_handle CALL,
                   request     sys.xmltype) RETURN sys.xmltype IS
   BEGIN
      set_call(call_handle);
      RETURN invoke_proxy(request);
   END invoke;
   FUNCTION invoke_proxy(request sys.xmltype) RETURN sys.xmltype AS
      LANGUAGE JAVA NAME 'oracle.jpub.runtime.dbws.DbwsProxy.invokeProxy(oracle.xdb.XMLType) return oracle.xdb.XMLType';I've been searching the web for half a day now and havn't found anything helpful. I'm actually considering rewriting my code to use utl_http (as I've done before) but that would be my last resort.
Anyone have any ideas as to why this sometimes fails?
TIA!
ps: Moderators, if this is in the wrong forum, feel free to move it.
Edited by: Jo on Jul 16, 2012 3:20 AM -> fixed the code blocks

Some extra info: the webservice is hosted in an OC4J container on a 10g application server (judging from the Help pages I'm guessing the full version number is 10.1.3).
I can access the Enterprise Manager and I found a Logs section in there.
The "Last modified" column for the webservices' Audit and Trace logs show June 30, with a size of 0B (even though I tried again a couple of times today).
The diagnostic logs (found in the Components -> OC4J -> webservices (this is the container's name) -> Diagnostic Logs section) show a couple of warnings in there on July 16, at about the same time I tried executing the webservice, with a Message Text saying "Unable to determine operation id from SOAP Message.", but there's no log for today, so not really sure if that's the correct file.
The server.log (Components -> OC4J -> webservices -> server.log) keeps updating, but shows only "oracle.ons.Notification@1b4fd6a" messages, so that's probably not it either.
I can also see the response/load graph updating as I execute the webservice, so I'm pretty sure connectivity is not the issue here.
Any advice as to which log file I'm looking for?

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Cannot download WSDL from http://host name.sap.com:8000/sap/bc/srt/wsdl/sdef_ZWEBSERVICE/wsdl11/ws_policy/document?sap-client=800: It is not allowed to access this service.
But same URL is working fine in browser.It's displaying the XML file.
Can you provide the solution to resolve this error?
Thanks,
Kundan

Error in Consuming Portal Webservice

Hi ,
I created a portal web service(RetrieveAndValidateUserService) and then consumed this portal service in an AbstractPortal Component application(RetrieveValidateUserComp).
On deploying that application on portal I get the following error -
#1.5#001372247F6F00640000001C000011600004542B1E4EA3FD#1218444075594#com.sap.portal.portal#sap.com/irj#com.sap.portal.portal#Administrator#34878##PUNITP84649D.ad_SYN_3160950#Administrator#2b7b0eb0678111ddb00a001372247f6f#SAPEngine_Application_Thread[impl:3]_4##0#0#Error#1#/System/Server#Java###Exception ID:02:11_11/08/08_0002_3160950
[EXCEPTION]
#1#com.sapportals.portal.prt.component.PortalComponentException: Error in init method
Component : RetrieveAndVAlidateUser.RetrieveValidateUserComp
      at com.sapportals.portal.prt.component.PortalComponentContext.init(PortalComponentContext.java:251)
      at com.sapportals.portal.prt.core.broker.PortalComponentContextItem.refresh(PortalComponentContextItem.java:267)
      at com.sapportals.portal.prt.core.broker.PortalComponentContextItem.getContext(PortalComponentContextItem.java:312)
      at com.sapportals.portal.prt.component.PortalComponentRequest.getComponentContext(PortalComponentRequest.java:385)
      at com.sapportals.portal.prt.connection.PortalRequest.getRootContext(PortalRequest.java:435)
      at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:607)
      at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:240)
      at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:522)
      at java.security.AccessController.doPrivileged(Native Method)
      at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)
      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:100)
      at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: com.sapportals.portal.prt.core.broker.PortalComponentInstantiationException: Could not instantiate implementation class com.pseg.test.webservice.RetrieveValidateUserComp of Portal Component RetrieveAndVAlidateUser.RetrieveValidateUserComp because: Could not instantiate implementation class
      at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getInstanceInternal(PortalComponentItemFacade.java:269)
      at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getComponentInstance(PortalComponentItemFacade.java:160)
      at com.sapportals.portal.prt.core.broker.PortalComponentItem.getComponentInstance(PortalComponentItem.java:732)
      at com.sapportals.portal.prt.component.PortalComponentContext.getComponent(PortalComponentContext.java:103)
      at com.sapportals.portal.prt.component.PortalComponentContext.init(PortalComponentContext.java:242)
      ... 26 more
Caused by: com.sapportals.portal.prt.core.broker.PortalApplicationNotFoundException: Could not find portal application RetrieveAndValidateUserService
      at com.sapportals.portal.prt.core.broker.PortalApplicationItem.prepare(PortalApplicationItem.java:415)
      at com.sapportals.portal.prt.core.broker.PortalApplicationItem.prepare(PortalApplicationItem.java:387)
      at com.sapportals.portal.prt.core.broker.PortalApplicationItem._refresh(PortalApplicationItem.java:507)
      at com.sapportals.portal.prt.core.broker.PortalApplicationItem.getCoreLoader(PortalApplicationItem.java:1360)
      at com.sapportals.portal.prt.core.broker.PortalComponentItem.getClassLoader(PortalComponentItem.java:569)
      at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getClassLoader(PortalComponentItemFacade.java:102)
      at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.getInstanceInternal(PortalComponentItemFacade.java:228)
      ... 30 more
1. I added a Private Sharing Reference Property in portalapps.xml of the application -
<application-config>
    <property name="PrivateSharingReference" value="com.pseg.webservice.RetrieveAndValidateUser"/>
</application-config>
2. I modified the Java-Build Path to include the Portal Service Application.
3. I deployed the Webservice par on the portal. I can see the service listed under Applications in
System Administration->System configuration->Service Configuration.
Is there anything i am missing or doing incorrectly?
Points will be promptly awarded for helpful answers.

Hi Lokesh
I created a Portal Service consuming a webservice.
It turns out the Private Sharing Reference that i gave had some fault. That's corrected now.
Now on deploying the Portal Application I created for accessing the service, i am getting the following error -
java.lang.Exception: The parameter Accounts is null before the serialization but in WSDL definition this field cannot be null
Here, we need to pass this parameter "Accounts" as NULL only, for test purpose.
Points will be awarded generously in case of helpful answer.

Need to consume Beehive webservices but can't figure out the best way

Hi
I'm completely new to the Beehive scene and I've been commissioned to write a sample application that consumes Beehive Webservices, just add a File to a certain workspace and be able to authenticate users via SSO and basic Authentication to a local DB. Initially I was told that Beehive had only support for REST webservices, so I thought it might be just easier to just go with REST, do a simple POST/GET request and get results, however I'm having a hard time running the sample code as a class is missing.
However I just found that Beehive also has support for SOAP webservices (I somehow like them more as I'm more used to them) but same problem, I don't know how would I authenticate, I found were the WDSL are stored and everything but I just don't understand how would I make a user authenticate with SSO or any other method
Finalyl there's this BPEL workflow for jDeveloper and JCR API.
I just don't know where or how to start, tutorials are oracle.com assume too many things, I was thinking in creating proxy classes using the Beehive WSDL's and consume the services this way, however I still don't understand how to authenticate.
Can anyone give me directions on this? How to use Beehive's SSO and Basic Authentication? thanks in advance

Hi,
Regarding the basic http authentication, an answer was provided in your other post:
Authentication with SOAP API
And regarding the missing class in the Rest sample code. I'm currently taking a look at it and, hopefully, I will get you an update on this in the following post:
Failure Class not bundled with BDK Samples
Regards,
Ward

Consuming MII WebService in Java WebDynpro

Hello,
We are facing a strange situation...
We define a transaction in MII to be consumed as WebService in Java WebDynpro. This transaction is a simple query on a DB returning 4 fields :
Shift code : SHIFT
Shift description : DESCRIPTION
Start time : START_TIME
End time : END_TIME
It works fine, we use the import adaptative web service wizzard in netweaver developper studio to use this WS...
But if we to an update on the webservice, changing a field name for example (SHIFT -> SHIFTCODE), we start to have trouble...
We got then the very helpful error message :
Exception on execution of web service with WSDL URL '<sever>/WebServices/GetShift' with operation 'Xacute' in interface 'XacuteWSSoap'
If I display the model info using wdContext.currentRequest_XacuteElement().modelObject().associatedModelClassInfo().getModelInfo().toString()
I got the following (extract) :
<ModelClassPropertyInfo name="SHIFT" dataType="com.sap.tc.webdynpro.model.webservice.types.string(java.lang.String)" readOnly="false" qName="SHIFT" required="true" backendType="null"/>
As you can see, the model definition is NOT updated and we still have SHIFT as name instead of SHIFTCODE...
If someboby has an idea, it will save us our life ;o)
Thank you
PS:it the same behaviour if we add a field...

Oliver -
Did you try to reimport the WS model ..? If yes and still doesn't work...Try to delete the old proxy in webdynpro ( adoptive ws) and import again.
To avoid code changes,you can give same old name while fresh import.
Adoptive WS in webdynpro is not really like Adoptive RFC .It has some limitations.
Thanks
Hari

Consuming utl_dbws webservice via proxy gives error (sometimes)

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