how to create an sqldump file for backup in netbeans(java)

Question

I have an issue in creating an sqldump file. Here is the code snip

import java.io.*;

public class MySQLBackup {
    public static void main(String[] args) {
        try {
            // MySQL dump command with output file path
            String[] command = {"C:\\xampp\\mysql\\bin\\mysqldump.exe", "-u", "root", "-p", "mta_db", "-r", "D:/backu1p.sql"};

            // Create ProcessBuilder instance
            
            ProcessBuilder processBuilder = new ProcessBuilder(command);

            // Redirect error stream to output stream
            processBuilder.redirectErrorStream(true);

            // Start the process
            Process process = processBuilder.start();

            // Read the output of the process
            InputStream inputStream = process.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String line;
            StringBuilder output = new StringBuilder();
            while ((line = bufferedReader.readLine()) != null) {
                output.append(line).append("\n");
            }

            // Wait for the process to complete
            int exitValue = process.waitFor();

            // Print the output
            System.out.println(output);

            // Check if the process exited successfully
            if (exitValue == 0) {
                System.out.println("Backup completed successfully.");
            } else {
                // Print error stream if process failed
                System.out.println("Backup failed. Exit value: " + exitValue);
                InputStream errorStream = process.getErrorStream();
                InputStreamReader errorStreamReader = new InputStreamReader(errorStream);
                BufferedReader errorBufferedReader = new BufferedReader(errorStreamReader);
                while ((line = errorBufferedReader.readLine()) != null) {
                    System.out.println(line);
                }
            }
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}

When I run the cooresponding cmd code in cmd, it runs perfectly, but when I run it in netbeans ide, it stop at the processbuilder line. When I futher investigate, I found that the file is created but empty( zero octs) an if I try to delete it, it show an error message stating that mysqldump is using the file. I don't know what to do.

I try changing the process by using process.runtime String backupFilePath = PRECLOUD_DIRECTORY + File.separator + "backup.sql";

   String dumpFilePath = "D:/your_dump_file.sql";
           String command = "mysqldump -u root -p  mta_db >"+backupFilePath;
        try {
            
            Process process = Runtime.getRuntime().exec(command);.....

but still it not working