Deployable Proxy Called From Portal

I've created and deployed a proxy on my portal application server. Then, from a portal service, I successfully look it up and invoke it. However, I'm getting a class loader error on the com.sap.engine.lib.xml.parser.tokenizer.XMLTokenWriter class.
I've added a sharing reference to my deployed J2EE component, and I know this is working because I can look up the proxy. What is strange is that this was working okay yesterday. It seems some class loading issue has come up since then.
Can anyone give me a pointer here?
     at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:360)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
     at com.sap.engine.services.webservices.jaxrpc.encoding.SimpleValidator.checkMaxLengthString(SimpleValidator.java:77)
     at com.champtech.coin.extract.bwdelta.types.Unit3.serialize(Unit3.java:58)
     at com.sap.engine.services.webservices.jaxrpc.encoding.GeneratedComplexType.serialize(GeneratedComplexType.java:500)
     at com.sap.engine.services.webservices.jaxrpc.encoding.SerializationUtil._serializeArray(SerializationUtil.java:462)
     at com.sap.engine.services.webservices.jaxrpc.encoding.GeneratedComplexType.serialize(GeneratedComplexType.java:354)
     at com.sap.engine.services.webservices.jaxrpc.encoding.GeneratedComplexType.serialize(GeneratedComplexType.java:500)
     at com.sap.engine.services.webservices.jaxrpc.wsdl2java.soapbinding.MimeHttpBinding.buildRequestDocument(MimeHttpBinding.java:388)
     at com.sap.engine.services.webservices.jaxrpc.wsdl2java.soapbinding.MimeHttpBinding.call(MimeHttpBinding.java:1422)
     at com.champtech.coin.extract.bwdelta.ZCOINLAB_XML_WSSoapBindingStub.BI0_QI6AZCOINLAB_XML_RFC(ZCOINLAB_XML_WSSoapBindingStub.java:86)
     ... 5 more
#1#java.rmi.RemoteException: Service call exception; nested exception is:
     java.lang.ClassNotFoundException: com.sap.engine.lib.xml.parser.tokenizer.XMLTokenWriter
Found in negative cache
Loader Info -
ClassLoader name: [champtech.com/COINBWExtraction.services]
Parent loader name: [Frame ClassLoader]
References:
   common:service:http;service:servlet_jsp
   service:ejb
   common:service:iiop;service:naming;service:p4;service:ts
   service:jmsconnector
   library:jsse
   library:servlet
   common:library:IAIKSecurity;library:activation;library:mail;library:tcsecssl
   library:ejb20
   library:j2eeca
   library:jms
   library:opensql
   common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore
   interface:resourcecontext_api
   interface:webservices
   interface:cross
   interface:ejbserialization
Resources:
   C:
usr
sap
EPQ
JC00
j2ee
cluster
server0
apps
champtech.com
COINBWExtraction.services
webservices_container
wsClients
ws_cl_0
jars
com.champtech.coin.extract.bwdelta.BWDeltaLoadService.jar
   C:
usr
sap
EPQ
JC00
j2ee
cluster
server0
apps
champtech.com
COINBWExtraction.services
webservices_container
wsClients
app_jars
COINBWExtraction.services.jar
Loading model: {parent,references,local}

Hi Mike:
I am facing the same problem, my project can't fine class XMLTokenWriter.
I removed the default class path and added the sapxmltoolkit.jar as external jar to my project, but the problem still exist. Could you kindly tell me more detail of your solution?
Best regards!

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Hi,
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<code Controller.java>
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<%
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%>
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<code>
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Merry Xmas:)
>>We did the same test with the demo app from you (MS)
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http://msdn.microsoft.com/en-us/library/windows/apps/jj735579(v=vs.105).aspx
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How to find out fn calls from portal.

can anyone help me to find out fn calls in xrpm portal?
steps!

You can use the following steps for doing it in portal
Open two sessions of SAP EP with the same user
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if you need to do debugging in backend !
make sure to swithch to new editor.
regards@gopeekrishnan

RFC call from portal to CRM - Special Characters are replaced

Hi All,
I am trying to call an RFC which gives the user information. I pass the portal username.
Issue is when the user name has special characters 'ä' are replaced by 'Ã#'.
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From our weblogic server, we are trying to connect to an external
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From the weblogic bean, we are doing the following
System.setProperty("socksProxySet", "true");
System.setProperty("socksProxyHost", "w.x.y.z");
System.setProperty("socksProxyPort", "1080");
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Hi,
From our weblogic server, we are trying to connect to an external
program outside our firewall through SSL. The SSL connection is being
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work so far. Currently, we are trying to make it work)
From the weblogic bean, we are doing the following
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System.setProperty("socksProxyHost", "w.x.y.z");
System.setProperty("socksProxyPort", "1080");
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Calling RFC placed in PI from Portal

Dear All,
We have a scenario where we have RFCs in ECC and it has to be called from Portal through PI.
Please suggest the possible and easiest ways.
Please note these RFC are already being called from Portal to ECC directly. So we need to change it be called from PI.
with regards,
Ravi Siddam

Hi Ravi,
You can do it in either any one of the below ways.
Use PI Http Url to push the data to PI and from there you can call RFC.
Plz check below link: Sender Synchronous HTTP Adapter
Or you can use Web sevice to push the data to PI and then you call RFC.
Plz check below link on Web service scenario:/people/shabarish.vijayakumar/blog/2007/11/07/walkthrough--soap-xi-rfcbapi
But before going for above solutions. Please have a looku2026 on below info and decide whether to go for it or not.
SAP NetWeaver PI 7.1 Usage Scenarios: When NOT to use SAP PI
User Interface Integration scenario: This is a common scenario faced by the development team u2013 the Webdynpro application is developed on the SAP J2EE application server integrated with the portal. The business data has to be fetched from the SAP ECC backend.
The User Interface would demand a quick response from the backend for fetching data and conducting the transaction. This is a synchronous scenario, and it would also be conducted with high usage every day. Hence, it is recommended to have a direct integration between the source application (WebDynpro application) and the target application (SAP ECC6) without using SAP PI. It is also recommended to expose the backend functionality as standard services.
For example, integration between SAP Portals (containing SAP BPM, SAP CAF, SAP WebDynpro) and SAP Suite (SAP ECC, SAP CRM, SAP SCM, SAP SRM etc.) should be conducted without the usage of SAP PI; the services should be exposed from the SAP suite as standards-compliant enterprise services.
Web Service interface of backend application: Many times, the target application in SAP/Microsoft/Java/Legacy is available as a standard web service. In such cases, the web service interface can be easily consumed in the source application. In such scenarios, SAP PI adds no value for transformation or backend integration.
In conclusion, SAP PI usage is usually not recommended for User facing applications where the backend application is available as a standard web service. SAP PI is almost always suitable for integration between backend applications not requiring human intervention.

Need FM which tells whether request received(object call) from R3 OR Portal

Hi All,
I need to differentiate some logic in a method based on whether it is called from R/3 OR Portal. I think there is a function module which tells whether the request is from Portal or not.
Thanks in advance
Regards,
Sudhakar.

Hi Sudhakar,
Not aware of any such FM. But this is what you can do.
Any action form portal usually will call an RFC. In that RFC you can use SET parameter (SAP memory). And in your method you can check for that parameter to determine if it was called from portal.
Regards
Krishna Kishor Kammaje

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