Aplicação so funciona no debug?

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

import br.com.fecomercio.conexao.Conexao_Banco;
import br.com.fecomercio.persistencia.Sindical_Bean;



/*
 * Created on May 22, 2006
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

/**
 * @author felipe
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class test {

	 public void validaPagamento(Collection listSindical,Collection listEmpresa) throws SQLException {

		PreparedStatement stmt;
 		Conexao_Banco con = new Conexao_Banco();
	
	 	String sql = ("INSERT INTO cnpj_2 (cnpj) VALUES (?);");
		Connection conexaoAcess = con.conectarBancoAcess();
		stmt = conexaoAcess.prepareStatement(sql);
		
	 	System.out.println("aki");	 	
	 	//***************************************
	 	Iterator it = listSindical.iterator();
 		ArrayList array = new ArrayList();
 		while(it.hasNext()){
 			String valor = it.next().toString();
 			if(listEmpresa.contains(valor)){
 				System.out.println(valor + " existe na lista");
 				array.add(valor);
 			}
 		}
 		
 		//***************************
 		System.out.println("de novo");
 		Iterator it2 = array.iterator();
 		while (it2.hasNext()) {
			String ji = (String) it2.next();
			
			stmt.setString(1,ji);
			
			stmt.execute();// o debug ta aqui!!!!!!!!!!!!1
			System.out.println("executou");
 		}
 		
 	    stmt.close();
 	    System.out.println("Fechou conexao");
 	
 	}
 
 	public static void main(String[] args) throws SQLException {
 	
 				
 		ArrayList sind = new ArrayList();
 		sind.add("b1");
 		sind.add("b2");
 
 		ArrayList emp = new ArrayList();
 		emp.add("b1");
 		emp.add("b2");
 		emp.add("b3");
 		emp.add("b4");
 		test t = new test();
 		t.validaPagamento(sind, emp);
 	}


}