Cannot delete file after calling JAI.create() method

Question

hi all
this is the first time i write to this list
today i began to use the JAI api on a project
it works fine but i am not able to delete a file after using it
my code:
for(int i=2; i<2+filenames.size(); i++)           
                try
                    String fName=filenames.get(i-2).toString();                   
                    if(fName!=null)
                        File file=new File(uploadDir+"\\"+fName);
                        FileInputStream f=new FileInputStream(file);
                        ps.setBinaryStream(i, f,(int)file.length());
                        PlanarImage pi = JAI.create("fileload", uploadDir+"\\"+fName);
                        System.out.println ("heigh : "+pi.getHeight());
                        System.out.println ("width : "+pi.getWidth());
                        f.close();
                catch(NullPointerException n)
                    n.printStackTrace();
                    return;
for(int i=0; i<filenames.size(); i++)
                String fName=filenames.get(i).toString();  
                File file=new File(uploadDir+"\\"+fName);
                if(file.delete())
                    System.out.println(fName+" deleted");
                else
                    System.out.println(fName+" not deleted");                   
                           }i use this code in a servlet that receives an image to put it in a database.
JAI is useful to get heigth and width of it.
the problem is that i always get the "not deleted" message.
i'm quite sure that is a problem of the bold code (JAI code), also because, cutting it, i can delete my file
anyone could help me?
thanx a lot in advance
alessandro

Answer 1

excuse me another time!
my first post was right.
i'm not able to delete an image after creating it with JAI.create();
i'm still lookin' for a way to close all the references to my image in order to delete it
how?
thanx a lot
sandro