wait() and notify() not working as expected on file read and write

Question

I have been given this problem in which if a file is currently getting read, no write operation can occur on it and vice versa, using wait() and notify(). I have tried to come up with a solution but after first read the program only does the write operation and gets stuck. Here's the code

public static boolean LOCK = false;

public synchronized void read() {
    String path = "/path/to/file/working.txt";

    while (LOCK == true) {
        try {
            System.out.println("reading paused..");
            wait();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    try (BufferedReader bin = new BufferedReader(new FileReader(path))) {
        LOCK = true;
        String line = "";
        System.out.println("reading now..");
        while ((line = bin.readLine()) != null) {
            System.out.println(line);
        }

        LOCK = false;
        notify();

    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

public synchronized void write(String word) {

    String path = "/path/to/file/working.txt";

    while (LOCK == true) {
        try {
            System.out.println("writing paused..");
            wait();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    try (PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(path, true)))) {
        System.out.println("writing resumed..");
        LOCK = true;
        out.println(word);
        LOCK = false;
        notify();

    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

I passed an String array of fruits as test, lauching read() and write() as seperate threads and the output I'm getting is,

Writing resumed..
reading..
Apple
Writing resumed..
Writing resumed..
Writing resumed..

The output gets written completly but no read operation occurs after the first word. Please can you tell me what I'm doing wrong? Thank you.

Here's the test code,

String[] fruits = { "Apple", "Banana", "Orange", "Cherry", "Date", "ElderBerry", "Marionberry", "Blueberry", };

        FileSyncDemo fileDemo = new FileSyncDemo();

        Runnable r = () -> {

        try {
                fileDemo.read();
                Thread.sleep((long) (Math.random() * 1000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        };

        Runnable r2 = () -> {

            try {
                for (int i = 0; i < fruits.length; i++) {
                    fileDemo.write(fruits[i]);
                    Thread.sleep((long) (Math.random() * 1000));
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        };

        Thread t = new Thread(r);
        t.start();

        Thread t2 = new Thread(r2);
        t2.start();

    }