Hi,

I want to develop an application using Servlet and CORBA. I wrote 2 inteface (reistapu.idl and reisbelediye.idl) and compiled them with idlj. I wrote my servers (ReisTapuServer.java and ReisBelediyeServer.java) and client codes (ReisCORBAClientServlet.java), and compiled them javac. I want to explain my application briefly;

1- A user enter his/her tax number in a HTML form and press submit button.

2- tax number is sent a CORBA client (it is a servlet)

3- Servlet calls a remote method using this tax number,

4- In the server, connecting access database, executing a query, creating Statement and ResulSet and writing results into the struct MalikInfo, ArsaInfo, BinaInfo are perfomed.

To run application, I'm doing following process;

1- prompt> start tnameserv

2- prompt> start java ReisTapuServer

3- prompt> start java ReisBelediyeServer

4- prompt> tomcat3.3.1 in> startup

5- Enter a tax number and push submit button

While I was waiting taxpayer information, the empty HTML page was displayed. When I looked to the Tomcat's DOS console, I saw an error message. Complete error message exsist below. How can I correct this error? Can anyone help me?

----------part of the MalikServer.java -----------------

public MalikInfo getMalikBilgi (String vno){

Connection conn = null;

ResultSet rset = null;

Statement stmt = null;

MalikInfo minfo = new MalikInfo ();

try {

/*create a JDBC connection*/

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

conn = DriverManager.getConnection("jdbc:odbc:ReisTapu","","");

/*Create a SQL statement for the database query*/

stmt = conn.createStatement();

rset = stmt.executeQuery("SELECT * FROM Malik WHERE VergiNo='"+vno+"' ");

/*return the result in a MalikInfo structure */

if(rset==null){

System.out.println("sorgu yurutulemedi");

}else {

System.out.println("sorgu sonuclari MalikInfo formatinda yazdiriliyor");

while(rset.next()) {

minfo.Adi = rset.getString("Adý");

minfo.Soyadi = rset.getString("Soyadý");

minfo.BabaAdi = rset.getString("BabaAdý");

minfo.DogumYeri = rset.getString("DogumYeri");

minfo.DogumTarihi = rset.getString("DogumTarihi");

minfo.TCKimlikNo = rset.getString("TCKimlikNo");

minfo.Mahalle = rset.getString("Mahalle");

minfo.Cadde = rset.getString("Cadde");

minfo.Sokak = rset.getString("Sokak");

minfo.KapiNo = rset.getString("KapýNo");

minfo.il = rset.getString("Ýl");

minfo.ilce = rset.getString("Ýlce");

}

}

}catch(ClassNotFoundException cnf) {cnf.printStackTrace(); }

catch(SQLException se) { se.printStackTrace();}

catch (Exception e) {

System.out.println("ERROR :" + e);

e.printStackTrace(System.out);

}

finally{

if (rset != null) try { rset.close(); } catch(SQLException se) { System.out.println("Error"); }

if (stmt != null) try { stmt.close(); } catch(SQLException se) { System.out.println("Error"); }

if (conn != null) try { conn.close(); } catch(SQLException se) { System.out.println("Error"); }

}

return minfo;

}

--------- COMPLETE ERROR MESSAGE---------------------

org.omg.CORBA.DATA_CONVERSION: wmcid : OMG minor code : 1 completed : No

at sun.reflect.GeneratedConstructorAccessor9.newInstanse (Unknown Source)

at un.reflect.DelegatingConstructorAccessorImpl.newIstance (DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newIstance (Constructor.java:274)

at java.lang.Class.newIstance0 (Class.java:296)

at java.lang.Class.newIstance (Class.java:249)

at m.sun.corba.se.internal.iiop.messages.ReplyMessage_1_2.getSystemException (ReplyMessage_1_2.java:90)

at com.sun.corba.se.internal.iiop.ClientResponseImpl.getSystemException (ClientResponseImpl.java:105)

at com.sun.corba.se.internal.POA.GenericPOAClientSC.invoke (GenericPOAClientSC.java:129)

at org.omg.CORBA.portable.ObjectImpl._invoke(objectImpl.java:457)

at reisTapuInterface._ReisTapuInterfaceStub.getMalikBilgi(_ReisTapuInterfaceStub.java:20)

at ReisCORBAClient.doPost(ReisCORBAClient.java:75)

at javax.servlet.http.HttpServlet.service (HttpServlet.java)

at javax.servlet.http.HttpServlet.service (HttpServlet.java)

at org.apache.tomcat.facade.ServletHandler.doService (ServletHandler.java:574)

at org.apache.tomcat.core.Handler.invoke (Handler.java:322)
at org.apache.tomcat.core.Handler.service (Handler.java:235)

at org.apache.tomcat.facade.ServletHandler.service (ServletHandler.java:485)

at org.apache.tomcat.core.ContextManager.internalService (ContextManager.java:917)

at org.apache.tomcat.core.ContextManager.service (ContextManager.java:833)

at org.apache.tomcat.modules.server.Http10Interceptor.processConnection (Http10Interceptor.java:176)

at org.apache.tomcat.util.net.TcpWorkerThread.runIt (PoolTcpEndpoint.java:494)

at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:516)

at java.lang.Thread.run (Thread.java:536)