[SOS]Non-Unicode to Unicode system

com.sap.mw.jco.JCO$Exception: (104) RFC_ERROR_SYSTEM_FAILURE: Conversion error b
etween two character sets.
        at com.sap.mw.jco.rfc.MiddlewareRFC$Client.nativeExecute(Native Method)
        at com.sap.mw.jco.rfc.MiddlewareRFC$Client.execute(MiddlewareRFC.java:12
17)
        at com.sap.mw.jco.JCO$Client.execute(JCO.java, Compiled Code)
        at com.sap.mw.jco.JCO$Client.execute(JCO.java:3132)
        at ext.umc.ctoc.sapjco.Z_BAPI_MATERIAL_PRICE.execute(Z_BAPI_MATERIAL_PRI
CE.java:95)
        at ext.umc.ctoc.sapjco.Z_BAPI_MATERIAL_PRICE_TestClient.getMaterialPrice
(Z_BAPI_MATERIAL_PRICE_TestClient.java:92)
        at ext.umc.jsp.ctoc.SAP._0002fext_0002fumc_0002fjsp_0002fctoc_0002fSAP_0
002ftest_0002ejsptest_jsp_0._jspService(_0002fext_0002fumc_0002fjsp_0002fctoc_00
02fSAP_0002ftest_0002ejsptest_jsp_0.java, Compiled Code)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:126)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspSer
vlet.java:174)
        at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:2
61)
        at org.apache.jasper.runtime.JspServlet.service(JspServlet.java, Compile
d Code)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.ja
va, Compiled Code)
        at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559
)
        at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processCon
nection(Ajp12ConnectionHandler.java:156)
        at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.j
ava:338)
        at java.lang.Thread.run(Thread.java:479)

Conversion error "P_MAT_GRP" 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.