diff --git a/examples/ioservice-replacing-example/pom.xml b/examples/ioservice-replacing-example/pom.xml
index a20e6db8..8e00cf54 100644
--- a/examples/ioservice-replacing-example/pom.xml
+++ b/examples/ioservice-replacing-example/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.3.3.RELEASE</version>
+        <version>2.4.1</version>
         <relativePath/>
     </parent>
 	
diff --git a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/console/ConsoleIOService.java b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/console/ConsoleIOService.java
index bdf68124..96de0884 100644
--- a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/console/ConsoleIOService.java
+++ b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/console/ConsoleIOService.java
@@ -1,9 +1,11 @@
 package ru.otus.ioservice.example.console;
 
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.stereotype.Service;
 import ru.otus.ioservice.example.api.IOService;
 
+import java.io.InputStream;
 import java.io.PrintStream;
 import java.util.Scanner;
 
@@ -14,9 +16,10 @@ public class ConsoleIOService implements IOService {
     private final Scanner sc;
 
 
-    public ConsoleIOService() {
-        this.out = System.out;
-        this.sc = new Scanner(System.in);
+    public ConsoleIOService(@Value("#{T(java.lang.System).out}") PrintStream out,
+                            @Value("#{T(java.lang.System).in}")InputStream in) {
+        this.out = out;
+        this.sc = new Scanner(in);
     }
 
     @Override
diff --git a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/poll/PollService.java b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/poll/PollService.java
index 35382eb0..169885ea 100644
--- a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/poll/PollService.java
+++ b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/poll/PollService.java
@@ -11,7 +11,7 @@ public class PollService {
     private final IOService ioService;
 
     public void poll() {
-        System.out.println("Началось!");
+        ioService.out("Началось!");
 
         ioService.out("Как вас зовут?");
         String name = ioService.readString();
diff --git a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/MessageSystem.java b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/MessageSystem.java
index 492a8460..5e4ce866 100644
--- a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/MessageSystem.java
+++ b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/MessageSystem.java
@@ -9,31 +9,31 @@ import java.util.concurrent.LinkedBlockingQueue;
 @ConditionalOnBean(SwingIOService.class)
 @Service
 public class MessageSystem {
-    private final LinkedBlockingQueue<String> pollQueue;
-    private final LinkedBlockingQueue<String> uiQueue;
+    private final LinkedBlockingQueue<String> inputQueue;
+    private final LinkedBlockingQueue<String> outputQueue;
 
     public MessageSystem() {
-        pollQueue = new LinkedBlockingQueue<>();
-        uiQueue = new LinkedBlockingQueue<>();
+        inputQueue = new LinkedBlockingQueue<>();
+        outputQueue = new LinkedBlockingQueue<>();
     }
 
     @SneakyThrows
-    public void putToPollQueue(String message) {
-        pollQueue.put(message);
+    public void putToInputQueue(String message) {
+        inputQueue.put(message);
     }
 
     @SneakyThrows
-    public void putToUiQueue(String message) {
-        uiQueue.put(message);
+    public void putToOutputQueue(String message) {
+        outputQueue.put(message);
     }
 
     @SneakyThrows
-    public String takeFromPollQueue() {
-        return pollQueue.take();
+    public String takeFromInputQueue() {
+        return inputQueue.take();
     }
 
     @SneakyThrows
-    public String takeFromUiQueue() {
-        return uiQueue.take();
+    public String takeFromOutputQueue() {
+        return outputQueue.take();
     }
 }
diff --git a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/PollMainForm.java b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/PollMainForm.java
index ef10492f..90ce379b 100644
--- a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/PollMainForm.java
+++ b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/PollMainForm.java
@@ -14,6 +14,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
 @RequiredArgsConstructor
 public class PollMainForm extends JFrame {
 
+    private static final int MESSAGE_DISPLAY_DURATION = 1500;
+
     private final JPanel contentPane;
     private final JLabel inLabel;
     private final JTextField outTextField;
@@ -51,7 +53,7 @@ public class PollMainForm extends JFrame {
         contentPane.add(outTextField);
 
         outBtn = new JButton("Ответить");
-        outBtn.addActionListener(e -> ms.putToPollQueue(outTextField.getText()));
+        outBtn.addActionListener(e -> ms.putToInputQueue(outTextField.getText()));
         contentPane.add(outBtn);
         setOnCloseHandler();
         setSize(450, 180);
@@ -67,11 +69,11 @@ public class PollMainForm extends JFrame {
         uiFlow.execute(() -> {
             while (runFlag.get()) {
                 try {
-                    String msg = ms.takeFromUiQueue();
+                    String msg = ms.takeFromOutputQueue();
                     synchronized (inLabel) {
                         inLabel.setText(msg);
                     }
-                    Thread.sleep(1000);
+                    Thread.sleep(MESSAGE_DISPLAY_DURATION);
                 } catch (InterruptedException e) {
                     return;
                 }
@@ -85,7 +87,7 @@ public class PollMainForm extends JFrame {
             @Override
             public void windowClosing(WindowEvent e) {
                 runFlag.set(false);
-                ms.putToUiQueue("exit");
+                ms.putToOutputQueue("exit");
                 uiFlow.shutdown();
                 e.getWindow().dispose();
             }
diff --git a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/SwingIOService.java b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/SwingIOService.java
index 324f8b97..f14fef19 100644
--- a/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/SwingIOService.java
+++ b/examples/ioservice-replacing-example/src/main/java/ru/otus/ioservice/example/swing/SwingIOService.java
@@ -15,12 +15,12 @@ public class SwingIOService implements IOService {
     @SneakyThrows
     @Override
     public void out(String message) {
-        ms.putToUiQueue(message);
+        ms.putToOutputQueue(message);
     }
 
     @SneakyThrows
     @Override
     public String readString() {
-        return ms.takeFromPollQueue();
+        return ms.takeFromInputQueue();
     }
 }
diff --git a/examples/unit-testing-pure-spring-parallel/pom.xml b/examples/unit-testing-pure-spring-parallel/pom.xml
index 836c52c1..5397be31 100644
--- a/examples/unit-testing-pure-spring-parallel/pom.xml
+++ b/examples/unit-testing-pure-spring-parallel/pom.xml
@@ -14,7 +14,7 @@
         <maven.compiler.source>11</maven.compiler.source>
         <maven.compiler.target>11</maven.compiler.target>
         <lombok.version>1.18.16</lombok.version>
-        <spring.version>5.3.1</spring.version>
+        <spring.version>5.3.2</spring.version>
         <junit.jupiter.version>5.7.0</junit.jupiter.version>
         <mockito.version>3.6.28</mockito.version>
         <assertj.version>3.18.1</assertj.version>