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Thread: SImpeJDBCinsert leads to memory leak

  1. #1
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    Default SImpeJDBCinsert leads to memory leak

    Hello,

    I'm having issues with my code, I'm using simpleJDBCinsert in order to create new entry to mt db. But when I run my code, it freezes.

    Thank you for your help.
     @Override
        public void createMission(Mission c) {
            SimpleJdbcInsert createMiss = new SimpleJdbcInsert(dataSource).withTableName("mission").usingGeneratedKeyColumns("id");
            Map<String, Object> parameters = new HashMap<>(5);
     
            parameters.put("Mission_Name", c.getName());
            parameters.put("Mission_Started", c.getStart());
            parameters.put("Location", c.getLocation());
            parameters.put("Mission_End", c.getEnd());
     
            Number id = createMiss.executeAndReturnKey(parameters);
            c.setId(id.longValue());
        }

    here is my simplejdbc query

       btnAddMission.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
     
                    System.out.print("Enter name of the mission: ");
                    Scanner scan = new Scanner(System.in);
                    String name = scan.nextLine();
     
                    System.out.print("Enter the Date of the mission: ");
                    String date = scan.nextLine();
                    Date start = null;
                    try {
                        start = new SimpleDateFormat("yyyy/MM/dd" ).parse(date);
                    } catch (ParseException e1) {
                        e1.printStackTrace();  //
      }
     
                    System.out.print("Enter the location: ");
                    String location = scan.nextLine();
     
                    System.out.print("Enter the exparation time: ");
                    String end = scan.nextLine();
                   Date endD = null;
                    try {
                        endD = new SimpleDateFormat("yyyy/ MM/dd").parse(end);
                    } catch (ParseException e1) {
                        e1.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
                    }
     
     
                    //Long id, String name, String location,Date start,Date end
                    MissionManagerImpl miss = new MissionManagerImpl();
                    Mission mission = new Mission((long) 0, name, location, start, endD);
     
                    miss.createMission(mission);
                }
            });


  2. #2
    Member coderxx0's Avatar
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    Default Re: SImpeJDBCinsert leads to memory leak

    Quote Originally Posted by justyStepi View Post
    Hello,

    I'm having issues with my code, I'm using simpleJDBCinsert in order to create new entry to mt db. But when I run my code, it freezes.

    Thank you for your help.
     @Override
        public void createMission(Mission c) {
            SimpleJdbcInsert createMiss = new SimpleJdbcInsert(dataSource).withTableName("mission").usingGeneratedKeyColumns("id");
            Map<String, Object> parameters = new HashMap<>(5);
     
            parameters.put("Mission_Name", c.getName());
            parameters.put("Mission_Started", c.getStart());
            parameters.put("Location", c.getLocation());
            parameters.put("Mission_End", c.getEnd());
     
            Number id = createMiss.executeAndReturnKey(parameters);
            c.setId(id.longValue());
        }

    here is my simplejdbc query

       btnAddMission.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
     
                    System.out.print("Enter name of the mission: ");
                    Scanner scan = new Scanner(System.in);
                    String name = scan.nextLine();
     
                    System.out.print("Enter the Date of the mission: ");
                    String date = scan.nextLine();
                    Date start = null;
                    try {
                        start = new SimpleDateFormat("yyyy/MM/dd" ).parse(date);
                    } catch (ParseException e1) {
                        e1.printStackTrace();  //
      }
     
                    System.out.print("Enter the location: ");
                    String location = scan.nextLine();
     
                    System.out.print("Enter the exparation time: ");
                    String end = scan.nextLine();
                   Date endD = null;
                    try {
                        endD = new SimpleDateFormat("yyyy/ MM/dd").parse(end);
                    } catch (ParseException e1) {
                        e1.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
                    }
     
     
                    //Long id, String name, String location,Date start,Date end
                    MissionManagerImpl miss = new MissionManagerImpl();
                    Mission mission = new Mission((long) 0, name, location, start, endD);
     
                    miss.createMission(mission);
                }
            });
    have you tried braking down the code to see were you are getting the error..
    have you tried to compile it????

    please answer the questions above

    --- Update ---



    Also please ask a more specific Question

  3. #3
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    Default Re: SImpeJDBCinsert leads to memory leak

    Hey, there is no error,and I can compile it.

    It happens when I press the btnAddMission. The whole JFrame freezes and I have to kill it with task manager,and then I get Process finished with exit code -805306369.

    it must be coming from th other part of the code when I try to call the method

    --- Update ---

    More specific question, I guess that it would be ... I have a memory leak in one of these parts of my code, and I can't find whats wrong. Can someone find it nd fix it

  4. #4
    Super Moderator copeg's Avatar
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    Default Re: SImpeJDBCinsert leads to memory leak

    It happens when I press the btnAddMission. The whole JFrame freezes and I have to kill it with task manager,and then I get Process finished with exit code -805306369.
    Take a look at that method then. How exactly does it proceed? Step by step: a) its called when a JButton is pressed b) it asks for user input from the command line. At what point does it 'freeze'? Do you input data on the command line? Why are you mixing a GUI in swing with command line input? What makes you think this is even remotely due to a memory leak?

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