```
@FXML
    private void handleStartButton() {
        String selectedProcess = selectProcessComboBox.getValue();
        if (selectedProcess != null) {
            try {
                // Construct the path to the selected process  JAR file
                String processPath = "/processes/" + processFileName;

                // Get the input stream for the selected process JAR file
                InputStream processInputStream = getClass().getResourceAsStream(processPath);
                if (processInputStream == null) {
                    log("Failed to locate process JAR file: " + processFileName);
                    return;
                }

                // Create a temporary file to store the process JAR contents
                File tempFile = File.createTempFile("Runner", ".jar");
                tempFile.deleteOnExit(); // Delete the temp file when the VM exits

                // Write the process JAR contents to the temporary file
                try (OutputStream outputStream = new FileOutputStream(tempFile)) {
                    byte[] buffer = new byte[1024];
                    int bytesRead;
                    while ((bytesRead = processInputStream.read(buffer)) != -1) {
                        outputStream.write(buffer, 0, bytesRead);
                    }
                }

                // Start the process
                ProcessBuilder processBuilder = new ProcessBuilder("java", "-jar", tempFile.getAbsolutePath());
                Process processProcess = processBuilder.start();

                // Create a separate thread to continuously read from the process's input stream
                new Thread(() -> {
                    try (BufferedReader reader = new BufferedReader(new InputStreamReader(processProcess .getInputStream()))) {
                        String inputLine;
                        while ((inputLine = reader.readLine()) != null) {
                            final String line = inputLine; // Declare line as final
                            // Update the GUI with the output from the JAR file
                            Platform.runLater(() -> logTextArea.appendText(line + "\n"));
                        }
                    } catch (IOException e) {
                        log("Error reading output from process: " + e.getMessage());
                    }
                }).start();


                log("Started process: " + selectedProcess );

                // Optionally, store the process for later management
                currentProcess = processProcess;
            } catch (IOException e) {
                log("Failed to start process: " + e.getMessage());
            }
        } else {
            log("No process selected.");
        }
    }
```