Urgent : Error in RFC Look Up using JCO.

Hi,
I have a scenario od accessing a database table by passing the name through XI and also giving the Where condition ,passing the fieldnames and getting back the field values . The FM that id used for this on ABAP side is RFC_READ_TABLE.
For this Scenario I inserted a Java Code using JCO's in th UDF for the RFC Look Up's.
I got errors while activating the MM which i am not able to rectify.Please Help me in this.
Activation of the change list canceled Check result for Message Mapping MM_Notes_2_ED_Z_SDIDOC |
Starting compilation Source code has syntax error: /usr/sap/EXD/DVEBMGS49/j2ee/cluster/server0/./temp/classpath_resolver/Map303c42607df411dc8b1d00e000c553d9/source/com/sap/xi/tf/_MM_Notes_2_ED_Z_SDIDOC_.java:1539: cannot resolve symbol symbol : method createClient (java.lang.String,java.lang.String) location: class com.sap.mw.jco.JCO JCO.Client mConnection = JCO.createClient("200","EN"); ^ /usr/sap/EXD/DVEBMGS49/j2ee/cluster/server0/./temp/classpath_resolver/Map303c42607df411dc8b1d00e000c553d9/source/com/sap/xi/tf/_MM_Notes_2_ED_Z_SDIDOC_.java:1578: cannot resolve symbol symbol : variable result location: class com.sap.xi.tf._MM_Notes_2_ED_Z_SDIDOC_ result.addValue(resultSet[pos]); ^ 2 errors
This is an Urgent Requirement. Please reply ASAP.
Regards,
Priyanka.

Hi Priyanka,
The error message says there are 2 errors:
1. createClient
2. result.addValue
For the first one, I guess you might not have included all the API required for lookup
For second one, please check what is the type of object you are adding to the resultset, maybe you can just say result.addValue(resultSet[pos] + ""); to typecast it.

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Hi Robert,
Thanks for the reply, it was very helpful as I had given up hope on getting a solution. Unfortunately I am still getting an error.
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"/Applications/SAPGUI for Java 6.3r5.2/SAPGUI 6.30rev5.2.app/Contents/MacOS/SAPGUI" -n -o $*
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ERROR #############################
18.05. 11:58:42.943 ERROR: AgiWindowAdaptor::update: no menu
ERROR #############################
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<REMOVED BY MODERATOR>
Edited by: Prateek Raj Srivastava on May 12, 2010 1:44 PM

Stefen
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hello all,
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please try to help..
thanks in advance..
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check user Authorization in R/3
nikhil

Error connecting using JCO.Client: null

Hi,
I created a WD app which uses the RFC FM. I followed How-To-build-webdynpro.pdf document to create the WD and trying to deploy and run, I see the view page but when I trigger the action via button UI element I get following error as exception in the try catch block of execute method
In the NWA I see
Could not create JCOClientConnection for logical System: 'WD_MODELDATA_DEST' - Model
An exception has occurred: Erorr accessing cache [region]='XCM_SESSION_SCOPE'.
[EXCEPTION]
com.sap.isa.core.cache.Cache$Exception: Cannot return access for region 'XCM_SESSION_SCOPE'. Cache is not ready
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WD_RFC_METADATA_DEST
WD_MODELDATA_DEST
What am I missing? In SM04 tcode I see 2 connections are opened with 2 Megabyte not released for a long time. I think if connections are released correctly it should drop to 1 megabyte. Is there anything that I need to do just after execute method as shown below (I have replaced function module with <FM> in below code)
try {
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Thanks
Praveen
I modified the above code and put in finally block to close the connections as follows, please let me know if this is OK. I still get error message as "Error connecting using JCO.Client: null" but no additional connections in the SM04 after adding finally block.
try {
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Edited by: Praveen11 on Oct 5, 2009 9:06 AM

Thanks Satish.
The issue is resolved. I think it was to do with permission, as I was running directly from NWDS deploy and run the session didn't have proper authorisation or something that was causing this error.
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Error connection using JCO.Client

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Hi,
I almost tested the JCO connection with the 'test' button successfully at the content administrator. I tested again and it still works. And I have a stand alone webdynpro application (no portal).
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"Error connection using JCO.Client:null"
"[Ljava.lang.StackTraceElement:@60db08"
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Bye
Petra

Error connection using JCO.Client :null

Hi,
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Hi Satya
/message/1944647#1944647 [original link is broken]
/message/8499#8499 [original link is broken]
Please go through this link.Hope it will be helpful for you
Regards
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Hi
This is a common problem,I have seen many threads , but following them did not solve my problem.
I have the JCOs tested successful from WD Admin. When I create a sample WDJ application with RFC model and deploy it to the server, I get
Exception:com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecution: Error connecting using JCO.Client: null.
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Hi Karthika
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http://www.sappro.com/downloads/WebDynproJava.pdf
Re: User has no RFC authorization for function group.
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/people/varadharajan.krishnasamy/blog/2007/05/11/how-to-use-digital-certificates-for-signing-encrypting-messages-in-xi
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Hi Manian,
pls chk with ABAP system tha tu have given the correct PWD and CLNT No
Use
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Hi All,
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Exception in thread "main" com.sap.conn.jco.JCoException: (104) RFC_ERROR_SYSTEM_FAILURE: No storage space available for extending an internal table.
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RfcException: [null]
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    message type: A
    message number: 044
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Thank you very much

Congrats Darek!
That function really works... here is my program test:
package integracao.sap.teste;
import java.util.Properties;
import integracao.sap.config.ConfigUtil;
import integracao.sap.funcao.RFC_READ_TABLE;
import com.sap.mw.jco.IRepository;
import com.sap.mw.jco.JCO;
public class TestJCOError {
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          JCO.Client client = JCO.createClient(config.getProperty("numClient"), config.getProperty("user"), config.getProperty("password"), "EN", config.getProperty("host"), config.getProperty("numPrograma"));
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@param args
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          func.getImportParameterList().setValue(";",    "DELIMITER");
          func.getTableParameterList().getTable("OPTIONS").appendRow();
          func.getTableParameterList().getTable("OPTIONS").setValue("MATNR = '000000000000000011'", "TEXT");
          func.getTableParameterList().getTable("FIELDS").appendRow();
          func.getTableParameterList().getTable("FIELDS").setValue("MATNR", "FIELDNAME");
          client.execute(func);
          JCO.Table table = func.getTableParameterList().getTable("DATA");
          System.out.println("NumRows: " + table.getNumRows());
          System.out.println("Content: " + table.getValue("WA"));
Result:
NumRows: 1
Content: 000000000000000011
Hope it helps everybody!
Regards,
Danilo Andrade

Urgent : Error in RFC Look Up using JCO.

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