Conversion error in JCo outbound call

Question

hi all
     i am working on making OUTBOUND call from SAP using JCo,
     our SAP system is Unicoded and i am refering Jco example 5 from JCo2.1.8 demo.
    i am able to make connection successfully , but while running test ABAP program for testing connection, i am getting Short dump error headed :
              Conversion error "ECHOTEXT" from character set 4103 to character set 4102
A conversion error occurred during the execution of a      Remote Function
*Call. This happened either when the data was received *      or when it was
*sent. The latter case can only occur if the data is sent from * a Unicode
system to a non-Unicode system.
The current program had to be terminated because of an
error when installing the R/3 System.
my ABAP prg. is this :
  REPORT  z_jco_test.
PARAMETERS: requtext LIKE sy-lisel.
*ECHOTEXT LIKE  SY-LISEL
**"              RESPTEXT LIKE  SY-LISEL
DATA: echotext type SYLISEL,
      resptext LIKE sy-lisel,
      rfctest TYPE TABLE OF rfctest,
      wa_rfctest TYPE rfctest.
wa_rfctest-rfcdata1 = requtext.
wa_rfctest-rfcdata2 = 'Hello World'.
APPEND wa_rfctest TO rfctest.
CALL FUNCTION 'RFC_PING'
  DESTINATION 'JCO'.
*CALL FUNCTION 'STFC_CONNECTION'
*  EXPORTING
*    requtext       =
** IMPORTING
**   ECHOTEXT       =
**   RESPTEXT       =
CALL FUNCTION 'STFC_CONNECTION'
  DESTINATION 'JCO'
  EXPORTING
    requtext = requtext
  IMPORTING
    echotext = echotext
    resptext = resptext
  TABLES
    rfctest  = rfctest.
WRITE: 'Echo Text: ', echotext.
WRITE: 'Response Text: ', resptext.
LOOP AT rfctest INTO wa_rfctest.
  WRITE: / 'rfcdata1: ', wa_rfctest-rfcdata1.
  WRITE: / 'rfcdata2: ', wa_rfctest-rfcdata2.
ENDLOOP. 
i have made RFC connection unicode yes.
please guide me

Answer 1

Helo!
We have a similar problem here. Could you please explain your solution in a bit more detail ?
Thanks in advance,
Markus