SQLServer Stored Proc. not working as intented

Hallo all!
first post here as I wasn't able to find any suitable answers in the internet..

a part of my project connects to an SQL Server db and executes a Stored Procedure.
This Procedure fills some tables with data retrieved from an xml file.

so..the problem...

- When I execute it for a small xml it's working great.
- When I execute it for a large xml file:
* It's working as intented when I execute it via sql server directly
* but it's NOT working when I execute it via my project (although it returns a "successful" message).

So...my procedure is correct and any errors are encountered in my java code listed below...any ideas?

Code :

---

 
public static void bulkInsertXml(boolean showMessages){
		  String urlSQLS = "";
 
		  try{
                        //retrieve data from configuration file
			java.util.Properties vProp = new java.util.Properties();
		        java.io.FileInputStream iFile = new java.io.FileInputStream("parser.config");
 
		        vProp.loadFromXML(iFile);
		        urlSQLS = vProp.getProperty("SQLS");		        
			}
			catch(Exception ex)
			{		
			}
		  try {
			  Connection conn = DriverManager.getConnection(urlSQLS);			
			  Statement stmt = conn.createStatement();
			  boolean rs;
 
			  rs = stmt.execute("exec MISCardLink_DEV.dbo.CIF_bulk_insert 1");
			  if (!rs){
				   if (showMessages)
				  	System.out.println("Bulk Insert Succeeded");
			  }
			  else{
				  if (showMessages)
				  	System.out.println("Bulk Insert Failed");
		  	  }
			  conn.close();
		  }catch (Exception e) {
	            System.err.println("Got an exception! ");
	            System.err.println(e.getMessage());
	            e.printStackTrace();	            
		  }
	  }

---

thanx for your time!

Code :

---

catch(Exception ex)
			{		
			}

---

May or may not pinpoint the problem, but never ignore exceptions such as this.

I left that spot to fill with log4j messages...which I did yesterday.

Still have the same issue though. Checked querry and connection timeout as well to no avail.
Any ideas?
Every thought on the subject will be very appreciated!