IOException Java

I'm having a difficulty with my code. When I use readObject in my code, I receive an IOException. The application as a whole works OK, but when I try to use readObject, I get an exception; here is the code I use to save objects:

File f = new File("employees.obj");
ObjectOutputStream objOut = null;

try [

objOut = new ObjectOutputStream(new BufferedOutputStream(
new FileOutputStream(f)));
objOut.writeObject(newEmployee);
objOut.flush();

System.out.println("Object is serialized.");

] catch (FileNotFoundException e) [
System.out.println("File not found!");

] catch (IOException e) [
System.out.println("Failed!");

] finally [

if (objOut != null) [
try [

objOut.close();
] catch (IOException e) [
]
]
]

and here is the code I use to restore the object:

File f = new File("employees.obj");
ObjectInputStream objIn = null;
ArrayList c = new ArrayList();
try [
objIn = new ObjectInputStream(new BufferedInputStream(
new FileInputStream(f)));
while (objIn.readObject() != null) [
Person employee = (Person) objIn.readObject();
System.out.println("hello");
System.out.println(employee.toString());
]
System.out.println(c.toString());
return c;

] catch (FileNotFoundException e) [
System.out.println("1");
] catch (IOException e) [
e.printStackTrace();
] catch (ClassNotFoundException e) [
System.out.println("3");
] catch (ClassCastException e) [
System.out.println("4");
] finally [

if (objIn != null) [
try [
objIn.close();
] catch (IOException e) [
System.out.println("4");
]
]
]
return c;

and the outcome in the console:

at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2553)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1296)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at org.bihe.DeSerializer.deSerializeEmployees(DeSerializer.java:20)
at org.bihe.Main.enterAsManager(Main.java:238)
at org.bihe.Main.menu(Main.java:92)
at org.bihe.Main.main(Main.java:50)

i use chatgpt every day now for this kind of stuff. From chatgpt, says that the loop condition objIn.readObject() != null is causing the Exception.

Recommends trying a try-catch block to handle the exception. In the catch block, you can break out of the loop.

Says to modify your code like so:

try [
objIn = new ObjectInputStream(new BufferedInputStream(
new FileInputStream(f)));
while (true) [
try [
Person employee = (Person) objIn.readObject();
System.out.println(employee.toString());
c.add(employee);
] catch (EOFException e) [
// End of file reached
break;
]
]
System.out.println(c.toString());
return c;
] catch (FileNotFoundException e) [
System.out.println("File not found!");
] catch (IOException e) [
e.printStackTrace();
] catch (ClassNotFoundException e) [
System.out.println("Class not found!");
] catch (ClassCastException e) [
System.out.println("Class cast exception!");
] finally [
if (objIn != null) [
try [
objIn.close();
] catch (IOException e) [
System.out.println("Error closing file!");
]
]
]


hope this works!

yes i too but sometimes it gives wrong and complicated solutions so kinda need human touch