Java.lang.ClassCastException while creating array descriptor

Question

( This post was moved from SQL / PLSQL forum to here )
Hi everyone, i used to pass string array from java to plsql. I wrote a java source, then i load db with loadjava. And i wrote java spec. Then i run the function but i am getting this error :
java.lang.ClassCastException
at oracle.jdbc.driver.PhysicalConnection.putDescriptor(PhysicalConnection.java:4921)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:208)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:175)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:158)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:125)
at SplitterOracle3.tokens2(SplitterOracle3.java:29)
My Java Source is :
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import oracle.sql.*;
import oracle.jdbc.driver.OracleConnection;
import oracle.jdbc.driver.OracleDriver;
public class SplitterOracle3 {
public static oracle.sql.ARRAY tokens2(String str,String delim)
try
//Class.forName("oracle.jdbc.driver.OracleDriver");
//DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//Connection conn = new OracleDriver().defaultConnection( );
OracleDriver ora = new OracleDriver();
OracleConnection conn = (OracleConnection) ora.defaultConnection();
//ArrayDescriptor arrayDesc = ArrayDescriptor.createDescriptor("MY_ARRAY", ((conn).getRealConnection());
//Connection conn = DriverManager.getConnection("jdbc:default:connection:");
//Connection conn = ((DelegatingConnection) getDataSource().getConnection()).getInnermostDelegate();
// get an initial context
//OracleConnection oracleConnection = (OracleConnection)WSJdbcUtil.getNativeConnection((WSJdbcConnection) wsConn);
ArrayDescriptor arraydesc =
ArrayDescriptor.createDescriptor ("ARR_VARCHAR_100", conn);
String strarr[] = new String[47];
strarr[0]="ahmet";
strarr[1]="mehmet";
int curIndex = 0;
int nextIndex = 0;
boolean nextIsLastToken = false;
int i=0;
while (true)
nextIndex = str.indexOf(delim, curIndex);
if (nextIsLastToken)
//return false;
break;
if (nextIndex == -1)
nextIsLastToken=true;
nextIndex = str.length();
strarr[i] = str.substring(curIndex, nextIndex);
curIndex = nextIndex + 1;
i++;
ARRAY dirArray = new ARRAY(arraydesc, conn, strarr);
return dirArray;*/
catch(Exception ex)
System.err.println(ex.getMessage());
ex.printStackTrace();
return null;
public static void main(String[] args)
String str="2000,2,123553168,1,10,64895,65535,27662,64860,64895,65535,27662,64860,0,,,,,,0,0,2491039806,,,,,,,,,0,0,1,,2491039106,,,,,,,,,,,,";
String strarr[] = new String[47];
long l1,l2;
int j=0;
l1 = System.currentTimeMillis();
for ( int i=0; i<20000000; i++)
strarr = tokens2(str,",");
l2 = System.currentTimeMillis();
System.out.println("Fark :"+ (l2-l1));
The line has "ArrayDescriptor.createDescriptor ("ARR_VARCHAR_100", conn);" causes this error.
java.lang.ClassCastException
at oracle.jdbc.driver.PhysicalConnection.putDescriptor(PhysicalConnection.java:4921)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:208)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:175)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:158)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:125)
at SplitterOracle3.tokens2(SplitterOracle3.java:29)
But i could not find the solution. Can you help me?
Thanks for responses.

Answer 1

Hi,
Did you try my suggestion from Re: java.lang.ClassCastException while create array descriptor
Try replacing
oracle.jdbc.driver.OracleConnectionwith
oracle.jdbc.OracleConnectionRegards
Peter