Need help using monitors to synchronize Reader-Writers problem with a Modifier,

[normal geyser]

<@&987246487241105418> please have a look, thanks.

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[sinful sparrow]

package textEditors.model;

import textEditors.main.Controller;

public class SharedBuffer {
    private int bufferSize;
    private Controller controller;
    private String[] buffer;
    private BufferStatus[] status;
    private int writePos;
    private int readPos;
    private int modifyPos;

    public SharedBuffer(int bufferSize, Controller controller) {
        this.bufferSize = bufferSize;
        this.controller = controller;
        buffer = new String[bufferSize];
        status = new BufferStatus[bufferSize];
        writePos = 0;
        readPos = 0;
        modifyPos = 0;

        for (int i = 0; i < bufferSize; i++) {
            buffer[i] = "";
            status[i] = BufferStatus.Empty;
        }
    }

    public void writeData(String line, String threadName) {
        synchronized (this) {
            while (status[writePos]!=BufferStatus.Empty) {
                try {
                    wait();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

            buffer[writePos] = line;
            status[writePos] = BufferStatus.New;
            System.out.println(threadName + " - has written \"" + line + "\", position " + writePos);
            String logEntry = threadName + " - has written \"" + line + "\", position " + writePos;
            controller.logbookStatus(logEntry);
            writePos = (writePos + 1) % bufferSize;
            notifyAll();
        }
    }

    public void modifyData(String find, String replace, String threadName) {
        synchronized (this) {
            while (status[modifyPos] != BufferStatus.New) {
                try {
                    wait();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

            if (buffer[modifyPos].contains(find)) {
                buffer[modifyPos] = buffer[modifyPos].replace(find, replace);
                System.out.println(threadName + " - has modified " + find + " to " + replace + " at position " + modifyPos);
                String logEntry = threadName + " - has modified " + find + " to " + replace + " at position " + modifyPos;
                controller.logbookStatus(logEntry);
            }
            status[modifyPos] = BufferStatus.Checked;
            modifyPos = (modifyPos + 1) % bufferSize;
            notifyAll();
        }
    }

    public String readData(String threadName) {
        String line = "";
        synchronized (this) {
            while (status[readPos] != BufferStatus.Checked) {
                try {
                    wait();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            line = buffer[readPos];
            status[readPos] = BufferStatus.Empty;
            System.out.println(threadName + " - has read " + line + " position " + readPos);
            String logEntry = threadName + " - has read, position " + readPos;
            readPos = (readPos + 1) % bufferSize;

            notifyAll();
            return line;
        }
    }

    public enum BufferStatus
    {
        Empty,
        Checked,
        New

    }
}