Memory Leak in swing appl

  To: comp.lang.java.gui
When I profile my swing application I notice that after each tidy up my
image container (add,remove IconImage objects to a hashmap), there
gather by and by surviving objects. This leads to run out of memory
after a while.

Below the method which is called periodically from a separate thread.

 public boolean load() throws SQLException{
        boolean isChanged=false;
        if(isLoading()==false){
            setLoading(true);
            //1- check new commings!
            List<PersonsCiRow> currentPersons =
PersonCi.getInstance().getData();
            for(int i=0; i<currentPersons.size();i++){
                PersonsCiRow row = currentPersons.get(i);
                String personNr = row.PersonNr;
                if(getPersonImageContainer().containsKey(personNr) ==
false){
                    //load the image from the database, every stream
are closed properly!
                    Image image =
DbInterfaceEtrainer.getInstance().getPersonImage(personNr);

                    assert(image != null);
                    ImageIcon icon = new ImageIcon(image);
                    getPersonImageContainer().put(personNr,icon);

                    isChanged=true;
                }
            }
            //2- kick out old
            Iterator<String> imageSetIterator =
getPersonImageContainer().keySet().iterator();
            while(imageSetIterator.hasNext()){
                String containerPersonNr = imageSetIterator.next();
                //check if its in the current list
                boolean isCurrent = false;
                for(int i=0;
i<PersonCi.getInstance().getData().size();i++){
                    String currentPersonNr =
PersonCi.getInstance().getData().get(i).PersonNr;
                    //is still current?
                    if(currentPersonNr.equals(containerPersonNr)){
                        isCurrent = true;break;//terminate comparision
                    }
                }
                if(isCurrent == false){
                    Tools.echo(String.format("PersonImage: %s.jpg
removed",containerPersonNr));

getPersonImageContainer().get(containerPersonNr).getImage().flush();
                    imageSetIterator.remove();
                    isChanged = true;
                }
            }
            setLoading(false);
        }
        return isChanged;
    }

Any idea? thank you.

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