When I try to rename “newfile” to “dump” it says it cannot change the file name. The file exists and it is able to be written to. Here is the code:

String name = "C:/Users/ajmer/OneDrive/Desktop/formation1/src/savedata.txt";
      String name1= "C:/Users/ajmer/OneDrive/Desktop/formation1/src/temp.txt";
      long count= Files.lines(Paths.get(name)).count();
      Scanner scanner= new Scanner(System.in);
  
      Scanner readlines = new Scanner(name);
    FileWriter savedata = new FileWriter(name, true);
    PrintWriter writer = new PrintWriter(savedata);
    Homework homework1= new Homework("empty","2024-08-24" );

    //LocalDate.now()

    System.out.println("Enter the due date of the homework: YYYY-MM-DD");
     homework1.dueDate= scanner.nextLine();

    //LocalDate.parse
      
      while(homework1.dueDate!="done"){
        writer.println(homework1.dueDate);
       break;
      
      }
        



      
    while(homework1.dueDate.equals("done")){
      
try{



      File oldfile = new File(name);
      File newfile = new File(name1);

      int line=0;
      String currentline;
      FileWriter fw= new FileWriter(name1, true);
      BufferedWriter bw =new BufferedWriter(fw);
      PrintWriter pw= new PrintWriter(bw);

      FileReader fr= new FileReader(name);
      BufferedReader br = new BufferedReader(fr);
      while((currentline=br.readLine())!=null){
        line++;
        if((count)!=line){
          pw.println(currentline);
        }
      }

      pw.flush();
      pw.close();
      br.close();
      fw.close();
      bw.close();
      fr.close();

      oldfile.delete();
      File dump=new File(name);
      
      if (newfile.renameTo(dump)) {
        System.out.println("File renamed successfully.");
        
    } else {
       System.out.println("Error renaming the file.");
        System.out.println("Old file exists: " + oldfile.exists());
        System.out.println("New file exists: " + newfile.exists());
        System.out.println("Can write to old file: " + oldfile.canWrite());
        System.out.println("Can write to new file: " + newfile.canWrite());
        
    }
    }catch (IOException c){
      c.printStackTrace();
    }
    
      System.exit(0);
     }

I tried deleting the temp.txt file hoping the file existing was the problem but nothing changed. I also tried using Files.move() but could not figure out what was making an error.