Java Database Connectivity (JDBC)

Hello.

Is it possible to execute PL\SQL with contains two or more duplicate name parameters?

Example: begin select *:v* ,*:v* into :v1, :v2 from dual; end;

I tried to execute it using follow code:

String plsql = "begin select :v ,:v into :v1, :v2 from dual; end;";
OracleCallableStatement callableStatement = (OracleCallableStatement) connection_.prepareCall(plsql);
callableStatement.setInt(1, 1);
callableStatement.setInt(2, 2);
callableStatement.registerOutParameter(3, Types.INTEGER);
callableStatement.registerOutParameter(4, Types.INTEGER);
callableStatement.execute();

result of executing it, is error: java.sql.SQLException: ORA-01036: illegal variable name/number

If I register parameters by name:

String plsql = "begin select :v ,:v into :v1, :v2 from dual; end;";
OracleCallableStatement callableStatement = (OracleCallableStatement) connection_.prepareCall(plsql);
callableStatement.setIntAtName("v1", 0);
callableStatement.setIntAtName("v", 1);
callableStatement.setIntAtName("v2", 0);
callableStatement.execute();

, i have same error: java.sql.SQLException: ORA-01036: illegal variable name/number

I'm porting Delphi application to Java, and can not change PL\SQL code. In Delphi this pl\sql execute successfully.