EOFexception in Java when reading objectinputstream

Question

I want to read multiple objects (my own class Term) that I have output to a .dat file, but I always get a nullPointException or EOFException.

ObjectInputStream inputStream = new ObjectInputStream(new FileInputStream(masterFile));
        Object o = null;
        while(( o = inputStream.readObject()) != null){
            Term t = (Term)o;
            System.out.println("I found a term");
        }

Answer 1

See the Javadoc. readObject() doesn't return null at EOF. It throws EOFException. The only way it can return a null is if you wrote a null at the other end, and that's not necessarily a good reason for terminating the read loop.

In short your code is wrong.

NB the initialization of 'o' is redundant.