Proper way to terminate thread

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• Spring MVC: What's the right way to register custom Validator in REST controller

  I'm trying to make sense of how validation works in Spring. So far I've learned that there are two ways to perform validation of user input data:

  • JSR-303 validation based on javax.validation.constraints annotations. This validation is best suitable for simple object fields validation. But you can also implement your custom type level annotations to perform more complicated validation based on checking values of multiple fields.
    
  • Spring Validation based on org.springframework.validation.Validator interface. Seems to be better suited for more complicated validation.

  If I want to use both these approaches, what is the right way to register my custom validator in controller?

  This is what I'm trying to do.

  My custom validator.

  public class PasswordPairValidator implements Validator {
      @Override
      public boolean supports(Class<?> clazz) {
          return PasswordPair.class.equals(clazz);
      }
  
      @Override
      public void validate(Object target, Errors errors) {
          PasswordPair password = (PasswordPair) target;
          if (!password.getPassword().equals(password.getRepeatPassword())) {
              errors.reject("passwordField", "passwords don't match");
          }
      }
  }
  

  My controller.

  @RestController
  @RequestMapping("/api/v1/users")
  public class UserController {
      @InitBinder
      protected void initBinder(WebDataBinder binder) {
          binder.addValidators(new PasswordPairValidator());
      }
  
      @RequestMapping(method = RequestMethod.POST)
      public ResponseEntity<UserInfo> createUser(
              @RequestBody @Valid UserInfo userInfo) {
          userInfo.setId(123);
          URI location = ServletUriComponentsBuilder.fromCurrentRequest()
                  .path("/{id}").buildAndExpand(userInfo.getId()).toUri();
          return ResponseEntity.created(location).body(userInfo);
      }
  
      @RequestMapping(value = "/change_password", method = RequestMethod.POST)
      public ResponseEntity<UserInfo> changePassword(
              @RequestBody @Valid PasswordPair password) {
          UserInfo user = new UserInfo("test@gmail.com", "testuser");
          user.setId(123);
          return ResponseEntity.ok().body(user);
      }
  }
  

  When I call createUser endpoint the code fails with the following error:

  ERROR c.e.testapp.controller.GlobalExceptionHandler - Internal Server Error
  java.lang.IllegalStateException: Invalid target for Validator [com.example.testapp.validation.PasswordPairValidator@49acd001]: com.example.testapp.domain.UserInfo@cae4750
  

  The problem apparently is that Spring tries to apply PasswordPairValidator to UserInfo object, which was not my intention. Why Spring doesn't use validator's supports() method to check to which objects validator can be applied?
  In a different stackoverflow question I found out that I need to specify value for @InitBinder annotation to make it work and the value should be "passwordPair". But what is this value as it's not the class name ("PasswordPair") or method parameters value ("password")?

  The second question is if I want to add several validators do I need to define multiple @InitBinder("value") methods or is there a less cumbersome way to do it?

  And the final question, maybe it's better to use annotation based validation for everything, to validate separate fields and implement type level custom annotations with ConstraintValidator to perform more complicated validation? It's a bit confusing what are the pros and cons of these approaches.
• How to read from a ByteArrayInputStream with different Scanners?

  I have a program that reads lines on System.in multiple times. Each time it reads a line, it creates a Scanner variable to read the line.

  For testing purposes, I want to set System.in to be a ByteArrayInputStream containing several lines before running the program. However when I do, only the first Scanner can read from the stream, all subsequent Scanner instances connected to the stream fail.

  Here is a small example illustrating my problem:

  import java.util.*;
  import java.io.*;
  
  public class SystemInTest {
      public static void main(String[] args) throws Exception {
          System.setIn(new ByteArrayInputStream("One\nTwo\nThree\nFour\n".getBytes()));
          Scanner sc;
          String s;
          // First Scanner reads first two lines (OK)
          sc = new Scanner(System.in);
          s = sc.nextLine();
          System.out.println(s);
          s = sc.nextLine();
          System.out.println(s);
          // Second Scanner fails on first read
          sc = new Scanner(System.in);
          s = sc.nextLine(); // fails with "java.util.NoSuchElementException: No line found"
      }
  }
  

  Because I need to use this approach for testing, I would like a solution that doesn't change the fact that each read is done with a separate Scanner, and I can't change the input stream in between reads. I have to prepare everything, then launch the tested functions (that I cannot change) that will perform several reads, with different Scanner instances. Is that possible?
• Redirection with UrlRewriteFilter

  I am working on a Java web app hosted on a Tomcat server. I have to set up redirects from www to non-www and from http to https. I want the following three URLs:

  • http://example.com
  • http://www.example.com
  • https://www.example.com

  to redirect to

  • https://example.com

  For this purpose, I am using UrlRewriteFilter version 4.0.3 by tuckey.org. Here is my urlrewrite.xml file:

  <?xml version="1.0" encoding="UTF-8"?> 
  <!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 4.0//EN" "http://www.tuckey.org/res/dtds/urlrewrite4.0.dtd"> 
  <urlrewrite> 
    <rule> 
      <name>Redirect www to non-www and http to https</name> 
      <condition type="request-url" operator="equal">(^http://example.com|^http://www.example.com|^https://www.example.com)</condition> 
      <from>^(.*)$</from> 
      <to type="permanent-redirect" last="true">https://example.com$1</to> 
    </rule> 
  </urlrewrite> 
  

  The redirects work but the website does not load and the browser shows message:

  This page isn’t working

  example.com redirected you too many times.

  I used a redirect checker and found out that after the initial redirect to https://example.com/, another redirect to https://example.com/ followed and then another one and so on – the URL redirects to itself. I don't understand what produces this infinite loop. Any help would be appreciated!
• Connection Refused Error Coming At The Time Of Uploading Files From Local Machine To FTP Server

  I am trying to upload files from local machine to ftp server and when this code starts first it store 6 folder data sucessfully on ftp server but from 7th folder to 25th folder i am getting connection refused error ... There is no limitation from client side for connections and only i am using these credentials for testing purpose . Can any one help me?
  I am getting this issue because of mirror issue in code but i am not able to figureout this issue. Please help me

  package com.epath.smoketest.tests;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import org.apache.commons.net.ftp.FTP;
  import org.apache.commons.net.ftp.FTPSClient;
  
  
  public class FTPUploadDirectoryTest {
  
      public static void main(String[] args) {
          try {
              System.out.println("\n"
                      + "---------------------------------------------------------------------------------" + "\r\n");
              System.out.println("Read FTP Login details from PROPERTIES file" + "\r\n");
              System.out.println(
                      "---------------------------------------------------------------------------------" + "\r\n");
  
              Properties prop = new Properties();
              InputStream input = null;
  
              String inputFS = getAutomationInputDataPath() + "//Validation.properties";
              input = new FileInputStream(inputFS);
              prop.load(input);
  
              // -Input file with test data
              System.out.println("Uploading file on ftp server");
              String ftp_port = prop.getProperty("ftp_port");         
              int ftp_host = Integer.parseInt(prop.getProperty("ftp_host"));          
              String ftp_username = prop.getProperty("ftp_username");         
              String ftp_password = prop.getProperty("ftp_password");         
  
              String server = ftp_port;
              int port = ftp_host;
              String user = ftp_username;
              String pass = ftp_password;
  
              FTPSClient ftpClient = new FTPSClient();
  
              // connect and login to the server
              ftpClient.connect(server, port);
              ftpClient.login(user, pass);
  
              // use local passive mode to pass firewall
              ftpClient.enterLocalPassiveMode();
  
              System.out.println("Connected");
              String remoteDirPath = "/www/ngage/screenshots";
              String localDirPath = folderPathForUploadingOnFTP;
  
              uploadDirectory(ftpClient, remoteDirPath, localDirPath, "");
  
              // log out and disconnect from the server
              ftpClient.logout();
              ftpClient.disconnect();
  
              System.out.println("Disconnected");
          } catch (IOException ex) {
              System.err.println("Error occured....." + ex.getMessage());
              ex.printStackTrace();
          }
      }
  
  
      public static void uploadDirectory(FTPSClient ftpClient, String remoteDirPath, String localParentDir,
              String remoteParentDir) throws IOException {
  
          File localDir = new File(localParentDir);
          File[] subFiles = localDir.listFiles();
          if (subFiles != null && subFiles.length > 0) {
              for (File item : subFiles) {
                  String remoteFilePath = remoteDirPath + "/" + remoteParentDir + "/" + item.getName();
                  if (remoteParentDir.equals("")) {
                      remoteFilePath = remoteDirPath + "/" + item.getName();
                  }
                  if (item.isFile()) {                    
                      if (!checkFileExists(remoteFilePath, ftpClient)) {
                          // upload the file
                          String localFilePath = item.getAbsolutePath();                      
                          boolean uploaded = uploadSingleFile(ftpClient, localFilePath, remoteFilePath);
                          if (uploaded) {
                              System.out.println("UPLOADED a file to: " + remoteFilePath);
                          } else {
                              System.out.println("COULD NOT upload the file: " + localFilePath);
                          }
                      } else {
                          System.out.println("This file alerady exist on ftp server ");
                      }
                  } else {
                      // create directory on the server
                      boolean created = ftpClient.makeDirectory(remoteFilePath);
                      if (created) {
                          System.out.println("CREATED the directory: " + remoteFilePath);
                      } else {
                          System.out.println("COULD NOT create the directory: " + remoteFilePath);
                      }
                      // upload the sub directory
                      String parent = remoteParentDir + "/" + item.getName();
                      if (remoteParentDir.equals("")) {
                          parent = item.getName();
                      }
                      localParentDir = item.getAbsolutePath();
                      uploadDirectory(ftpClient, remoteDirPath, localParentDir, parent);
                  }
              }
          }
          ftpClient.makeDirectory(remoteDirPath);
      }
  
      public static boolean uploadSingleFile(FTPSClient ftpClient, String localFilePath, String remoteFilePath)
              throws IOException {
          File localFile = new File(localFilePath);
          InputStream inputStream = new FileInputStream(localFile);
          try {
              ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
              return ftpClient.storeFile(remoteFilePath, inputStream);
          } finally {
              inputStream.close();
          }       
      }
  
      public static Boolean checkFileExists(String filePath, FTPSClient ftpClient) throws IOException {
          InputStream inputStream = ftpClient.retrieveFileStream(filePath);
          int returnCode = ftpClient.getReplyCode();      
          if (inputStream == null || returnCode == 550) {
              return false;
          }
          inputStream.close();
          return true;
      }
  
  }
  
  
  
  
  Error coming .
  
  COULD NOT upload the file: \\192.168.10.21\volume1\ngage_dev\engineering\ngage\testing\automated\validation\Build_1.19.1\051\2018-04-23_07-54-39_AM\TC_UA_PSWD_0001_006_1.png
  java.net.ConnectException: Connection refused: connect
  at java.net.DualStackPlainSocketImpl.connect0(Native Method)
  at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
  at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
  at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
  at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
  at java.net.PlainSocketImpl.connect(Unknown Source)
  at java.net.SocksSocketImpl.connect(Unknown Source)
  at java.net.Socket.connect(Unknown Source)
  at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:920)
  at org.apache.commons.net.ftp.FTPSClient._openDataConnection_(FTPSClient.java:627)
  at org.apache.commons.net.ftp.FTPClient._retrieveFileStream(FTPClient.java:1980)
  at org.apache.commons.net.ftp.FTPClient.retrieveFileStream(FTPClient.java:1967)
  at com.epath.smoketest.tests.FTPUploadDirectoryTest.checkFileExists(FTPUploadDirectoryTest.java:124)
  
• Sending data from android to computer over hosted network

  I've been trying to send data from an android device to a computer by hosting a virtual network on the computer and connecting the android device to it (basically sending data over WLAN).

  However, upon debugging the android app it always throws the following exception:

  System.Net.Sockets.SocketException (0x80004005): Network subsystem is down.
  

  Android App Code Snippet:

  namespace TestWifiApp
  {
      [Activity(Label = "TestWifiApp", MainLauncher = true)]
      public class MainActivity : Activity
      {
          string bssid = "00:18:39:12:2b:e9";
          const string ssid = "TEST";
          const string password = "123456abc";
          const string kioskIp = "192.168.137.11";
          const int kioskPort = 2201;
          void sendData(string ntlId)
          {
              try {
                  System.Net.Sockets.Socket soc = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Stream, System.Net.Sockets.ProtocolType.Tcp);
                  System.Net.IPAddress ipAdd = System.Net.IPAddress.Parse(kioskIp);
                  System.Net.IPEndPoint ep = new System.Net.IPEndPoint(ipAdd, kioskPort);
                  soc.Connect(ep);
                  byte[] data = ASCIIEncoding.ASCII.GetBytes(ntlId);
                  soc.Send(data);
                  soc.Disconnect(false);
                  soc.Close();
                  Log.Debug("TEST", "Data sent");
              }
              catch(Exception ex)
              {
                  Log.Debug("TEST",ex.ToString());
              }
          }
      }
  

  Server Code:

          class Program
      {
          const int PORT_NO = 2201;
          static Socket serverSocket;
          static void Main(string[] args)
          {
              //---listen at the specified IP and port no.---
              Console.WriteLine("Listening...");
              serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
              serverSocket.Bind(new IPEndPoint(IPAddress.Any, PORT_NO));
              serverSocket.Listen(4); //the maximum pending client, define as you wish
              serverSocket.BeginAccept(new AsyncCallback(acceptCallback), null);
              string result = "";
              do
              {
                  result = Console.ReadLine();
              } while (result.ToLower().Trim() != "exit");
          }
  
          private const int BUFFER_SIZE = 4096;
          private static byte[] buffer = new byte[BUFFER_SIZE]; //buffer size is limited to BUFFER_SIZE per message
          private static void acceptCallback(IAsyncResult result)
          { //if the buffer is old, then there might already be something there...
              Socket socket = null;
              try
              {
                  socket = serverSocket.EndAccept(result); // The objectDisposedException will come here... thus, it is to be expected!
                                                           //Do something as you see it needs on client acceptance
                  socket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, new AsyncCallback(receiveCallback), socket);
                  serverSocket.BeginAccept(new AsyncCallback(acceptCallback), null); //to receive another client
              }
              catch (Exception e)
              { // this exception will happen when "this" is be disposed...        
                //Do something here             
                  Console.WriteLine(e.ToString());
              }
          }
  
          const int MAX_RECEIVE_ATTEMPT = 10;
          static int receiveAttempt = 0; //this is not fool proof, obviously, since actually you must have multiple of this for multiple clients, but for the sake of simplicity I put this
          private static void receiveCallback(IAsyncResult result)
          {
              Socket socket = null;
              try
              {
                  socket = (Socket)result.AsyncState; //this is to get the sender
                  if (socket.Connected)
                  { //simple checking
                      int received = socket.EndReceive(result);
                      if (received > 0)
                      {
                          byte[] data = new byte[received]; //the data is in the byte[] format, not string!
                          Buffer.BlockCopy(buffer, 0, data, 0, data.Length); //There are several way to do this according to https://stackoverflow.com/questions/5099604/any-faster-way-of-copying-arrays-in-c in general, System.Buffer.memcpyimpl is the fastest
                                                                             //DO SOMETHING ON THE DATA int byte[]!! Yihaa!!
                          Console.WriteLine(Encoding.UTF8.GetString(data)); //Here I just print it, but you need to do something else                     
  
                          //Message retrieval part
                          //Suppose you only want to declare that you receive data from a client to that client
                          string msg = "I receive your message on: " + DateTime.Now;
                          socket.Send(Encoding.ASCII.GetBytes(msg)); //Note that you actually send data in byte[]
                          Console.WriteLine("I sent this message to the client: " + msg);
  
                          receiveAttempt = 0; //reset receive attempt
                          socket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, new AsyncCallback(receiveCallback), socket); //repeat beginReceive
                      }
                      else if (receiveAttempt < MAX_RECEIVE_ATTEMPT)
                      { //fail but not exceeding max attempt, repeats
                          ++receiveAttempt; //increase receive attempt;
                          socket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, new AsyncCallback(receiveCallback), socket); //repeat beginReceive
                      }
                      else
                      { //completely fails!
                          Console.WriteLine("receiveCallback fails!"); //don't repeat beginReceive
                          receiveAttempt = 0; //reset this for the next connection
                      }
                  }
              }
              catch (Exception e)
              { // this exception will happen when "this" is be disposed...
                  Console.WriteLine("receiveCallback fails with exception! " + e.ToString());
              }
          }
  
      }
  

  I've tried connecting another computer to the hosted network and sending data to that computer, but the same exception is thrown.
• Trying to send data from C++ to Java involving Rmq. Considering IPC Sockets

  My code will be running on 2 raspberry pi's.

  The Process is this:

  1. C++ program generates a string of data on Pi1
  2. Data is sent to Send Java file on Pi1
  3. Send Java file sends it to Rabbitmq (done and shown below)
  4. Recv Java file receives the message on Pi2 (done and shown below)
  5. Recv Java file sends it to to the C++ program on Pi2
  6. Process is repeated from Pi2 to Pi1

  You'll see that right now I am just making the string in my Send file but that piece needs to be replaced with the data/string that is being received from the C++ file. I also need to add a part in the Recv file to send the storedMessage/message to the C++ file.

  I am kind of lost on what to do from here. I looked into Sockets but didn't find anything to help me start.

  I am still a novice so sorry if this seems like an easy thing. Many thanks in advance.

  Recv File

  import com.rabbitmq.client.*; 
  import java.io.IOException;
  
  public class Recv 
  {
  public static String recv(String ip, String Q) throws Exception 
  {
  
  ConnectionFactory factory = new ConnectionFactory();
  factory.setHost(ip);
  factory.setUsername("test");
  factory.setPassword("test");
  Connection connection = factory.newConnection();
  Channel channel = connection.createChannel();
  
  System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
  MyConsumer consumer=new MyConsumer(channel);
  channel.basicConsume(Q,true,consumer);
  
  return consumer.getStoredMessage();
  }
  
  public static class MyConsumer extends DefaultConsumer 
  {
      public String storedMessage;
  
  public MyConsumer(Channel channel) 
  {
      super(channel);
  }
  
  public String getStoredMessage() 
  {
      return storedMessage;
  }
  
  @Override
  public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body)
      throws IOException 
  {
      String message = new String(body, "UTF-8");
      System.out.println(" [x] Received '" + message + "'");
      storedMessage = message; // store message here
  }
  }
  }
  

  Send file

  import com.rabbitmq.client.Channel;   
  import com.rabbitmq.client.Connection;
  import com.rabbitmq.client.ConnectionFactory;
  
  public class Send {
  
  public static void send(String ip, String Q) throws Exception {
  ConnectionFactory factory = new ConnectionFactory();
  
  //set connection info
  factory.setHost(ip);
  factory.setUsername("test");
  factory.setPassword("test");
  
  //create connection
  Connection connection = factory.newConnection();
  
  //create channel
  Channel channel = connection.createChannel();
  
  //publish message
  int a = 1; 
  while (a!=0)
  {
      channel.queueDeclare(Q, false, false, false, null);
      for(int i=1; i<=2; i++)
      {
          String message = "Pizza #"+i;
          channel.basicPublish("", Q, null, message.getBytes("UTF-8"));
          System.out.println(" [x] Sent '" + message + "'" + Q);
      }
  
      a--;
  }
  
  //SHUT IT ALL DOWN!
  channel.close();
  connection.close();
  }
  }
  
• Share one VMWare image with two PCs

  I am running VMWare Workstation 12. I have two PCs at home, one is a high end desktop, the other is a mid-range laptop.

  During the day, I work on the desktop. At night I work on the laptop.

  Both run VMWare Workstation 12, configured for NAT.

  I have an SSD with an Ubuntu VM on it.

  I can move the SSD from the desktop to the laptop, and select "I have moved". However, the assigned IP address changes from laptop to desktop and vice verca.

  Is there any way to configure the setup so that the VM has it's own fixed IP address on the local intranet that the desktop and laptop use? I have tried assigning a static IP address to the Linux VM and changing the adapter config to bridged connection, but that didn't work.

  Any pointers gratefully received.
• How to properly call releaseNetworkRequest(PendingIntent) when PendingIntent is no longer available

  I am trying to request the network, so I build the NetworkRequest and I build the PendingIntent,

  ConnectivityManager conn_manager =  (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
  
          NetworkRequest net_req;
          net_req = new NetworkRequest.Builder()
                  .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)  //Data Network?
                  .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)  //Wifi
                  .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)  //This might be what need internet permission
                  .addCapability(NetworkCapabilities.NET_CAPABILITY_MMS)
                  .build();
  
          Intent intent_sent = new Intent(activity, Service_MmsNetworkAvailable.class);
  
          PendingIntent pending_intent_net_req_received = PendingIntent.getService(activity, 0, intent_sent,
                  PendingIntent.FLAG_ONE_SHOT);
  
          conn_manager.requestNetwork(net_req, pending_intent_net_req_received);
  

  Then once the Service runs from the PendingIntent calling it, I am doing some Network stuff inside the Service and then when I'm done I believe I need to call releaseNetworkRequest(PendingIntent).

  But here's the whole problem of mine, how do I reference the PendingIntent that started the Service from inside the Service? There is no guarantee that the Activity that created the NetworkRequest and PendingIntent will still be alive so I cannot rely on returning to that Activity to be able to call releaseNetworkRequest(PendingIntent) where I have reference to the PendingIntent.

  Android specifically states that you must pass in the same PendingIntent into releaseNetworkRequest(PendingIntent) that you passed into conn_manager.requestNetwork(net_req, pending_intent_net_req_received);

  So how is a developer supposed to releaseNetworkRequest(PendingIntent)?

  Can I somehow reference the PendingIntent from the Service? I understand that PendingIntents stay alive even after the Activity that called it parishes into the abyss.

  I must be missing something here, PendingIntents call Activities, Receivers, and Services, none of which I see can reference back to the original PendingIntent. Furthermore, NULL cannot be passed into releaseNetworkRequest(PendingIntent) according to Android documentation?

  Also just to note, I am only doing this because startUsingNetworkFeature() is deprecated and developers are encouraged to use NetworkRequest(), arg!!!

  I am literally stuck here now with no way to go, this is rare to be so backed into a corner here if anyone can shed light on this predicament of mine I would be grateful.
• Limitation of multicast bind in Zigbee

  I'm new to Zigbee.

  I was wondering if there is any limitation of multicast bind in Zigbee network. For Example, will the messages be dropped when I send several multicast messages? Furthermore, when doing binding and grouping in Zigbee, is multicast bind practical or I have to use unicast bind?

  Thanks in advance.
• change tableview cell color to click

  I have a TableView that represents a calendar. Each cell is one day. and I want to add an event to the cells. When the cell is clicked, the background must be changed to red ... it should be possible to select more than one cell
• set alignment of a pane in a stack pane

  I try to create an application that contains 2 panes in a stackpane. One pane is the main pane and is centered, the second is smaller and docked to the bottom-left of the stage.

  The thing is that I've tried using 'setAlignment' and it does'nt seems to work (although the button is aligned). The small pane is always centered.

  What is the problem and how I fix this? I guess that maybe I can't align a pane, so how can I overcome this?

  Pane pane = new Pane();
  
  for (SerialPoint sp : points) {
      Circle circle = new Circle(sp.getX(), sp.getY(), 6, Color.GREEN);
      pane.getChildren().add(circle);
  }
  
  Pane smallPane = new Pane();
  smallPane.setScaleX(0.25);
  smallPane.setScaleY(0.25);
  smallPane.setStyle("-fx-border-color: black;");
  
  for (SerialPoint sp : points) {
      Circle circle = new Circle(sp.getX(), sp.getY(), 6, Color.RED);
      smallPane.getChildren().add(circle);
  }
  
  Button startBtn = new Button("Start");
  
  StackPane stackPane = new StackPane(pane, smallPane, startBtn);
  StackPane.setAlignment(smallPane, Pos.BOTTOM_LEFT);
  StackPane.setAlignment(startBtn, Pos.TOP_RIGHT);
  StackPane.setMargin(startBtn, new Insets(5));
  
  Scene scene = new Scene(stackPane);
  

  (SerialPoint is my inner class)

  This is what I get:
• Unable to resolve dependency Java FX spring boot

  I am new to JavaFX and Spring Boot. I am trying to use Dependency Injection but dependency is not getting Autowired. can anybody please help.

  Thanks in Advance. Here is my code

  import de.felixroske.jfxsupport.AbstractJavaFxApplicationSupport;
  
  @SpringBootApplication
  @ComponentScan("com.tillster.kisok.installer")
  public class Main extends AbstractJavaFxApplicationSupport {
  
  
      public static void main(String[] args) {
  
          System.setProperty("com.sun.javafx.touch", "true");
          System.setProperty("com.sun.javafx.isEmbedded", "true");
          System.setProperty("com.sun.javafx.virtualKeyboard", "none");
  
          launch(Main.class, KisokInstallDetailView.class, args);
      }
  
  }
  

  Here is my view File

  import org.springframework.stereotype.Component;
  import de.felixroske.jfxsupport.AbstractFxmlView;
  import de.felixroske.jfxsupport.FXMLView;
  
  @Component
  @FXMLView(value="/view/LanguageMainScreen.fxml", bundle="bundles.locale")
  public class KisokInstallDetailView extends AbstractFxmlView {
  
  }
  

  Configuration File

       @Configuration
       @ComponentScan("com.kisok.installer")
       public class KISOKConfiguration {
       }
  }
  

  Controller

  @FXMLController
  @Component
  public class KisokInstallProgressController implements Initializable {
  
      @FXML
      VBox hBox;
      @FXML
      WebView webView;
  
      @Autowired
      @Qualifier("installStepService")
      InstallStepsService installService;
  
  ......................
  
      @Override
      public void initialize(URL location, ResourceBundle resources) {
  
          Stage stage = Main.getStage();
  
          WebEngine webEngine = webView.getEngine();
  
          URL url = this.getClass().getClassLoader().getResource("test.html");
          webEngine.load(url.toString());
  
          Screen screen = Screen.getPrimary();
          Rectangle2D bounds = screen.getVisualBounds();
  
          double screenWidth = bounds.getWidth();
          double screenHeight = bounds.getHeight();
  
          webView.setPrefHeight(screenHeight);
          webView.setPrefWidth(screenWidth);
  
          hBox.setPrefWidth(screenWidth);
          hBox.setPrefHeight(screenHeight);
  
          stage.setFullScreen(true);
          stage.setMaximized(true);
          stage.setAlwaysOnTop(true);
  
          InstallKIOSKDetails installKISOKDtls = installService.getKIOSKDetails();
          System.out.println(installKISOKDtls.getInstallSteps().length);
      }
  

  Service Class:

  import java.io.File;
  import java.io.IOException;
  
  import org.springframework.stereotype.Service;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import com.tillster.kisok.installer.domain.InstallKIOSKDetails;
  
  @Service("installStepService")
  public class InstallStepsServiceImpl implements InstallStepsService {
  
      private ObjectMapper objectMapper;
  
      @Override
      public InstallKIOSKDetails getKIOSKDetails() {
          System.out.println("Inside getKIOSKDetails");
          objectMapper = new ObjectMapper();
          InstallKIOSKDetails installKISOKDtls = null;
          File jsonInputFile = new File("E:\\KisokDeployment\\json.txt");
          try {
              installKISOKDtls = objectMapper.readValue(jsonInputFile, InstallKIOSKDetails.class);
          } catch (IOException e) {
              e.printStackTrace();
          }
  
          return installKISOKDtls;
      }
  
  }
  

  Here's the Exception: javafx.fxml.LoadException: /E:/mna%20(3)/installer/target/classes/kioskInstallProgress.fxml

  at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
  at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)
  Caused by: java.lang.NullPointerException
      at com.tillster.kisok.installer.controller.KisokInstallProgressController.initialize(KisokInstallProgressController.java:67)
      at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
      ... 64 more
  

  FXML

  <?xml version="1.0" encoding="UTF-8"?>
  
  <?import javafx.scene.control.Label?>
  <?import javafx.scene.control.MenuBar?>
  <?import javafx.scene.image.ImageView?>
  <?import javafx.scene.layout.AnchorPane?>
  <?import javafx.scene.layout.HBox?>
  <?import javafx.scene.layout.VBox?>
  <?import javafx.scene.web.WebView?>
  
  
  <VBox prefHeight="400.0" prefWidth="640.0" xmlns="http://javafx.com/javafx/8.0.141" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.tillster.kisok.installer.controller.KisokInstallProgressController">
      <children>
          <MenuBar VBox.vgrow="NEVER" />
          <AnchorPane maxHeight="-1.0" maxWidth="-1.0" prefHeight="-1.0" prefWidth="-1.0" VBox.vgrow="ALWAYS">
              <children>
                  <WebView fx:id="webView" layoutX="1.0" />
              </children>
              <children>
                  <VBox fx:id="hBox" style="-fx-alignment:center;">
                      <HBox style="-fx-alignment:center;">
                          <VBox fx:id="vBox" layoutX="65.0" layoutY="61.0" prefHeight="819.0" prefWidth="627.0" style="-fx-background-color: #EEE;">
                       <children>
                          <HBox prefHeight="70.0" prefWidth="627.0">
                             <children>
                                <ImageView fx:id="logo" fitHeight="92.0" fitWidth="200.0" pickOnBounds="true" preserveRatio="true" />
                                <Label style="-fx-font-size: 20; -fx-padding: 30 5 5 5;" text="Starting Process of Installation" />
                             </children>
                          </HBox>
                          <HBox prefHeight="33.0" prefWidth="627.0" />
                       </children></VBox>
  
                      </HBox>
                  </VBox>
              </children>
          </AnchorPane>
      </children>
  </VBox>