Out of memory ved connect to jdbc.

public GUI()
{
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
      playlist.dbConnect();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
}

  public void dbConnect()
  {
    try
    {     
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      conn = DriverManager.getConnection("jdbc:odbc:SAMLING", "", "");
      stat = conn.createStatement();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    } 
} 

hvorfor melder den hele tiden en out of memory?