Merge branch 'master' of https://github.com/ahmedtawila/tutorials

algorithms/README.md

@@ -6,3 +6,5 @@
 - [Validating Input With Finite Automata in Java](http://www.baeldung.com/finite-automata-java)
 - [Introduction to Jenetics Library](http://www.baeldung.com/jenetics)
 - [Check If a Number Is Prime in Java](http://www.baeldung.com/java-prime-numbers)
+- [Example of Hill Climbing Algorithm](http://www.baeldung.com/java-hill-climbing-algorithm)
+- [Monte Carlo Tree Search for Tic-Tac-Toe Game](http://www.baeldung.com/java-monte-carlo-tree-search)

algorithms/src/main/java/com/baeldung/algorithms/minimax/MiniMax.java

@@ -18,12 +18,12 @@ public class MiniMax {
         constructTree(root);
     }
 
-    private void constructTree(Node node) {
-        List<Integer> listofPossibleHeaps = GameOfBones.getPossibleStates(node.getNoOfBones());
-        boolean isMaxPlayer = !node.isMaxPlayer();
+    private void constructTree(Node parentNode) {
+        List<Integer> listofPossibleHeaps = GameOfBones.getPossibleStates(parentNode.getNoOfBones());
+        boolean isChildMaxPlayer = !parentNode.isMaxPlayer();
         listofPossibleHeaps.forEach(n -> {
-            Node newNode = new Node(n, isMaxPlayer);
-            node.addChild(newNode);
+            Node newNode = new Node(n, isChildMaxPlayer);
+            parentNode.addChild(newNode);
             if (newNode.getNoOfBones() > 0) {
                 constructTree(newNode);
             }

asciidoctor/pom.xml

@@ -35,7 +35,12 @@
                 <configuration>
                     <sourceDirectory>src/docs/asciidoc</sourceDirectory>
                     <outputDirectory>target/docs/asciidoc</outputDirectory>
+                    <attributes>
+                        <pdf-stylesdir>${project.basedir}/src/themes</pdf-stylesdir>
+                        <pdf-style>custom</pdf-style>
+                    </attributes>
                     <backend>pdf</backend>
+                    <doctype>book</doctype>
                 </configuration>
             </plugin>
         </plugins>

asciidoctor/src/docs/asciidoc/test.adoc

@@ -1,3 +1,13 @@
-== Introduction Section
+:icons: font
 
-Hi. I'm a simple test to see if this Maven build is working. If you see me in a nice PDF, then it means everything is [red]#working#.
+
+= Generating book with AsciiDoctorj
+Baeldung
+
+[abstract]
+This is the actual content.
+
+== First Section
+
+This is first section of the book where you can include some nice icons like icon:comment[].
+You can also create http://www.baeldung.com[links]

asciidoctor/src/themes/custom-theme.yml

@@ -0,0 +1,29 @@
+title_page:
+  align: left
+
+page:
+  layout: portrait
+  margin: [0.75in, 1in, 0.75in, 1in]
+  size: A4
+base:
+  font_color: #333333
+  line_height_length: 17
+  line_height: $base_line_height_length / $base_font_size
+link:
+  font_color: #009900
+
+header:
+  height: 0.5in
+  line_height: 1
+  recto_content:
+    center: '{document-title}'
+  verso_content:
+    center: '{document-title}'
+
+footer:
+  height: 0.5in
+  line_height: 1
+  recto_content:
+    right: '{chapter-title} | *{page-number}*'
+  verso_content:
+    left: '*{page-number}* | {chapter-title}'

aws/pom.xml

@@ -18,9 +18,41 @@
         <aws-lambda-java-events.version>1.3.0</aws-lambda-java-events.version>
         <aws-lambda-java-core.version>1.1.0</aws-lambda-java-core.version>
         <gson.version>2.8.0</gson.version>
+        <aws-java-sdk.version>1.11.154</aws-java-sdk.version>
+        <junit.version>4.12</junit.version>
+        <mockito-core.version>2.8.9</mockito-core.version>
+        <assertj-core.version>3.8.0</assertj-core.version>
     </properties>
 
     <dependencies>
+    
+        <dependency>
+            <groupId>com.amazonaws</groupId>
+            <artifactId>aws-java-sdk</artifactId>
+            <version>${aws-java-sdk.version}</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>${mockito-core.version}</version>
+            <scope>test</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj-core.version}</version>
+            <scope>test</scope>
+        </dependency>
+    
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-lambda-java-core</artifactId>

aws/src/main/java/com/baeldung/s3/AWSS3Service.java

@@ -0,0 +1,87 @@
+package com.baeldung.s3;
+
+import java.io.File;
+import java.util.List;
+
+import com.amazonaws.services.s3.AmazonS3;
+import com.amazonaws.services.s3.AmazonS3Client;
+import com.amazonaws.services.s3.model.Bucket;
+import com.amazonaws.services.s3.model.CopyObjectResult;
+import com.amazonaws.services.s3.model.DeleteObjectsRequest;
+import com.amazonaws.services.s3.model.DeleteObjectsResult;
+import com.amazonaws.services.s3.model.ObjectListing;
+import com.amazonaws.services.s3.model.PutObjectResult;
+import com.amazonaws.services.s3.model.S3Object;
+
+public class AWSS3Service {
+    private final AmazonS3 s3client;
+
+    public AWSS3Service() { 
+        this(new AmazonS3Client() {
+        }); 
+    } 
+    
+    public AWSS3Service(AmazonS3 s3client) {
+        this.s3client = s3client;
+    }
+    
+    //is bucket exist?
+    public boolean doesBucketExist(String bucketName) { 
+        return s3client.doesBucketExist(bucketName); 
+    } 
+    
+    //create a bucket
+    public Bucket createBucket(String bucketName) { 
+        return s3client.createBucket(bucketName); 
+    } 
+
+    //list all buckets
+    public List<Bucket> listBuckets() { 
+        return s3client.listBuckets(); 
+    }
+
+    //delete a bucket
+    public void deleteBucket(String bucketName) { 
+        s3client.deleteBucket(bucketName); 
+    }  
+    
+    //uploading object
+    public PutObjectResult putObject(String bucketName, String key, File file) {
+        return s3client.putObject(bucketName, key, file);
+    }
+    
+    //listing objects
+    public ObjectListing listObjects(String bucketName) {
+        return s3client.listObjects(bucketName);
+    }
+    
+    //get an object
+    public S3Object getObject(String bucketName, String objectKey) {
+        return s3client.getObject(bucketName, objectKey);
+    } 
+    
+    //copying an object
+    public CopyObjectResult copyObject(
+      String sourceBucketName,
+      String sourceKey,
+      String destinationBucketName,
+      String destinationKey
+    ) {
+        return s3client.copyObject(
+          sourceBucketName, 
+          sourceKey, 
+          destinationBucketName, 
+          destinationKey
+        );
+    }
+    
+    //deleting an object
+    public void deleteObject(String bucketName, String objectKey) {
+        s3client.deleteObject(bucketName, objectKey);
+    }
+    
+    //deleting multiple Objects
+    public DeleteObjectsResult deleteObjects(DeleteObjectsRequest delObjReq) {
+        return s3client.deleteObjects(delObjReq);
+    }
+}

aws/src/main/java/com/baeldung/s3/S3Application.java

@@ -0,0 +1,101 @@
+package com.baeldung.s3;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.commons.io.FileUtils;
+
+import com.amazonaws.auth.AWSCredentials;
+import com.amazonaws.auth.AWSStaticCredentialsProvider;
+import com.amazonaws.auth.BasicAWSCredentials;
+import com.amazonaws.regions.Regions;
+import com.amazonaws.services.s3.AmazonS3;
+import com.amazonaws.services.s3.AmazonS3ClientBuilder;
+import com.amazonaws.services.s3.model.Bucket;
+import com.amazonaws.services.s3.model.DeleteObjectsRequest;
+import com.amazonaws.services.s3.model.ObjectListing;
+import com.amazonaws.services.s3.model.S3Object;
+import com.amazonaws.services.s3.model.S3ObjectInputStream;
+import com.amazonaws.services.s3.model.S3ObjectSummary;
+
+public class S3Application {
+
+    private static final AWSCredentials credentials;
+    private static String bucketName;  
+
+    static {
+        //put your accesskey and secretkey here
+        credentials = new BasicAWSCredentials(
+          "<AWS accesskey>", 
+          "<AWS secretkey>"
+        );
+    }
+    
+    public static void main(String[] args) throws IOException {
+        //set-up the client
+        AmazonS3 s3client = AmazonS3ClientBuilder
+          .standard()
+          .withCredentials(new AWSStaticCredentialsProvider(credentials))
+          .withRegion(Regions.US_EAST_2)
+          .build();
+        
+        AWSS3Service awsService = new AWSS3Service(s3client);
+
+        bucketName = "baeldung-bucket";
+
+        //creating a bucket
+        if(awsService.doesBucketExist(bucketName)) {
+            System.out.println("Bucket name is not available."
+              + " Try again with a different Bucket name.");
+            return;
+        }
+        awsService.createBucket(bucketName);
+        
+        //list all the buckets
+        for(Bucket s : awsService.listBuckets() ) {
+            System.out.println(s.getName());
+        }
+        
+        //deleting bucket
+        awsService.deleteBucket("baeldung-bucket-test2");
+        
+        //uploading object
+        awsService.putObject(
+          bucketName, 
+          "Document/hello.txt",
+          new File("/Users/user/Document/hello.txt")
+        );
+
+        //listing objects
+        ObjectListing objectListing = awsService.listObjects(bucketName);
+        for(S3ObjectSummary os : objectListing.getObjectSummaries()) {
+            System.out.println(os.getKey());
+        }
+
+        //downloading an object
+        S3Object s3object = awsService.getObject(bucketName, "Document/hello.txt");
+        S3ObjectInputStream inputStream = s3object.getObjectContent();
+        FileUtils.copyInputStreamToFile(inputStream, new File("/Users/user/Desktop/hello.txt"));
+        
+        //copying an object
+        awsService.copyObject(
+          "baeldung-bucket", 
+          "picture/pic.png", 
+          "baeldung-bucket2", 
+          "Document/picture.png"
+        );
+        
+        //deleting an object
+        awsService.deleteObject(bucketName, "Document/hello.txt");
+
+        //deleting multiple objects
+        String objkeyArr[] = {
+          "Document/hello2.txt", 
+          "Document/picture.png"
+        };
+        
+        DeleteObjectsRequest delObjReq = new DeleteObjectsRequest("baeldung-bucket")
+          .withKeys(objkeyArr);
+        awsService.deleteObjects(delObjReq);
+    }
+}

aws/src/test/java/com/baeldung/s3/AWSS3ServiceIntegrationTest.java

@@ -0,0 +1,113 @@
+package com.baeldung.s3;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.io.File;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import com.amazonaws.services.s3.AmazonS3;
+import com.amazonaws.services.s3.model.CopyObjectResult;
+import com.amazonaws.services.s3.model.DeleteObjectsRequest;
+import com.amazonaws.services.s3.model.DeleteObjectsResult;
+import com.amazonaws.services.s3.model.PutObjectResult; 
+
+public class AWSS3ServiceIntegrationTest {
+
+    private static final String BUCKET_NAME = "bucket_name"; 
+    private static final String KEY_NAME = "key_name"; 
+    private static final String BUCKET_NAME2 = "bucket_name2"; 
+    private static final String KEY_NAME2 = "key_name2"; 
+ 
+    private AmazonS3 s3; 
+    private AWSS3Service service; 
+ 
+    @Before 
+    public void setUp() { 
+        s3 = mock(AmazonS3.class); 
+        service = new AWSS3Service(s3); 
+    } 
+ 
+    @Test 
+    public void whenInitializingAWSS3Service_thenNotNull() { 
+        assertThat(new AWSS3Service()).isNotNull(); 
+    } 
+    
+    @Test 
+    public void whenVerifyingIfS3BucketExist_thenCorrect() { 
+        service.doesBucketExist(BUCKET_NAME); 
+        verify(s3).doesBucketExist(BUCKET_NAME); 
+    } 
+ 
+    @Test 
+    public void whenVerifyingCreationOfS3Bucket_thenCorrect() { 
+        service.createBucket(BUCKET_NAME); 
+        verify(s3).createBucket(BUCKET_NAME); 
+    } 
+ 
+    @Test 
+    public void whenVerifyingListBuckets_thenCorrect() { 
+        service.listBuckets(); 
+        verify(s3).listBuckets(); 
+    } 
+
+    @Test 
+    public void whenDeletingBucket_thenCorrect() { 
+        service.deleteBucket(BUCKET_NAME); 
+        verify(s3).deleteBucket(BUCKET_NAME); 
+    } 
+    
+    @Test 
+    public void whenVerifyingPutObject_thenCorrect() { 
+        File file = mock(File.class); 
+        PutObjectResult result = mock(PutObjectResult.class); 
+        when(s3.putObject(anyString(), anyString(), (File) any())).thenReturn(result); 
+ 
+        assertThat(service.putObject(BUCKET_NAME, KEY_NAME, file)).isEqualTo(result); 
+        verify(s3).putObject(BUCKET_NAME, KEY_NAME, file); 
+    }
+    
+    @Test 
+    public void whenVerifyingListObjects_thenCorrect() { 
+        service.listObjects(BUCKET_NAME); 
+        verify(s3).listObjects(BUCKET_NAME); 
+    } 
+    
+    @Test 
+    public void whenVerifyingGetObject_thenCorrect() { 
+        service.getObject(BUCKET_NAME, KEY_NAME); 
+        verify(s3).getObject(BUCKET_NAME, KEY_NAME); 
+    } 
+    
+    @Test 
+    public void whenVerifyingCopyObject_thenCorrect() { 
+        CopyObjectResult result = mock(CopyObjectResult.class); 
+        when(s3.copyObject(anyString(), anyString(), anyString(), anyString())).thenReturn(result); 
+ 
+        assertThat(service.copyObject(BUCKET_NAME, KEY_NAME, BUCKET_NAME2, KEY_NAME2)).isEqualTo(result); 
+        verify(s3).copyObject(BUCKET_NAME, KEY_NAME, BUCKET_NAME2, KEY_NAME2);
+    } 
+    
+    @Test 
+    public void whenVerifyingDeleteObject_thenCorrect() { 
+        service.deleteObject(BUCKET_NAME, KEY_NAME); 
+        verify(s3).deleteObject(BUCKET_NAME, KEY_NAME); 
+    }
+    
+    @Test 
+    public void whenVerifyingDeleteObjects_thenCorrect() { 
+        DeleteObjectsRequest request = mock(DeleteObjectsRequest.class);
+        DeleteObjectsResult result = mock(DeleteObjectsResult.class);
+        when(s3.deleteObjects((DeleteObjectsRequest)any())).thenReturn(result); 
+        
+        assertThat(service.deleteObjects(request)).isEqualTo(result);
+        verify(s3).deleteObjects(request); 
+    }
+    
+}

camel-api/src/main/java/com/baeldung/camel/Application.java

@@ -13,14 +13,13 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.servlet.ServletRegistrationBean;
-import org.springframework.boot.web.support.SpringBootServletInitializer;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.stereotype.Component;
 
 @SpringBootApplication
 @ComponentScan(basePackages="com.baeldung.camel")
-public class Application extends SpringBootServletInitializer {
+public class Application{
 
     @Value("${server.port}")
     String serverPort;
@@ -62,10 +61,12 @@ public class Application extends SpringBootServletInitializer {
                 .bindingMode(RestBindingMode.json)
                 .dataFormatProperty("prettyPrint", "true");
 /** 
-The Rest DSL supports automatic binding json/xml contents to/from POJOs using Camels Data Format.
-By default the binding mode is off, meaning there is no automatic binding happening for incoming and outgoing messages.
-You may want to use binding if you develop POJOs that maps to your REST services request and response types. 
-This allows you, as a developer, to work with the POJOs in Java code.
+The Rest DSL supports automatic binding json/xml contents to/from 
+POJOs using Camels Data Format.
+By default the binding mode is off, meaning there is no automatic 
+binding happening for incoming and outgoing messages.
+You may want to use binding if you develop POJOs that maps to 
+your REST services request and response types. 
 */         
             
             rest("/api/").description("Teste REST Service")

core-java-9/README.md

@@ -13,3 +13,6 @@
 - [Java 9 Process API Improvements](http://www.baeldung.com/java-9-process-api)
 - [Introduction to Java 9 StackWalking API](http://www.baeldung.com/java-9-stackwalking-api)
 - [Introduction to Project Jigsaw](http://www.baeldung.com/project-jigsaw-java-modularity)
+- [Java 9 Optional API Additions](http://www.baeldung.com/java-9-optional)
+- [Java 9 Reactive Streams](http://www.baeldung.com/java-9-reactive-streams)
+- [How to Get All Dates Between Two Dates?](http://www.baeldung.com/java-between-dates)

core-java/README.md

@@ -113,6 +113,16 @@
 - [Difference Between Wait and Sleep in Java](http://www.baeldung.com/java-wait-and-sleep)
 - [LongAdder and LongAccumulator in Java](http://www.baeldung.com/java-longadder-and-longaccumulator)
 - [Using Java MappedByteBuffer](http://www.baeldung.com/java-mapped-byte-buffer)
+- [The Dining Philosophers Problem in Java](http://www.baeldung.com/java-dining-philoshophers)
+- [The Difference Between map() and flatMap()](http://www.baeldung.com/java-difference-map-and-flatmap)
+- [How to Round a Number to N Decimal Places in Java](http://www.baeldung.com/java-round-decimal-number)
+- [Changing Annotation Parameters At Runtime](http://www.baeldung.com/java-reflection-change-annotation-params)
+- [How to Find all Getters Returning Null](http://www.baeldung.com/java-getters-returning-null)
+- [Converting String to Stream of chars](http://www.baeldung.com/java-string-to-stream)
+- [Changing the Order in a Sum Operation Can Produce Different Results?](http://www.baeldung.com/java-floating-point-sum-order)
+- [How to Get a Name of a Method Being Executed?](http://www.baeldung.com/java-name-of-executing-method)
+- [Iterate over a Map in Java](http://www.baeldung.com/java-iterate-map)
+- [CyclicBarrier in Java](http://www.baeldung.com/java-cyclic-barrier)
 - [Dynamic Proxies in Java](http://www.baeldung.com/java-dynamic-proxies)
 - [How to Copy an Array in Java](http://www.baeldung.com/java-array-copy)
 - [Introduction to JDBC](http://www.baeldung.com/java-jdbc)

core-java/hashcode/pom.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.hashcode</groupId>
+    <artifactId>hashcode</artifactId>
+    <version>1.0</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-simple</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+    </dependencies>
+</project>

core-java/hashcode/src/main/java/com/baeldung/application/Application.java

@@ -0,0 +1,23 @@
+package com.baeldung.application;
+
+import com.baeldung.entities.User;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Application {
+
+    public static void main(String[] args) {
+        Map<User, User> users = new HashMap<>();
+        User user1 = new User(1L, "John", "john@domain.com");
+        User user2 = new User(2L, "Jennifer", "jennifer@domain.com");
+        User user3 = new User(3L, "Mary", "mary@domain.com");
+
+        users.put(user1, user1);
+        users.put(user2, user2);
+        users.put(user3, user3);
+
+        if (users.containsKey(user1)) {
+            System.out.print("User found in the collection");
+        }
+    }
+}

core-java/hashcode/src/main/java/com/baeldung/entities/User.java

@@ -0,0 +1,38 @@
+package com.baeldung.entities;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class User {
+
+    private final Logger logger = LoggerFactory.getLogger(User.class);
+    private long id;
+    private String name;
+    private String email;
+
+    public User(long id, String name, String email) {
+        this.id = id;
+        this.name = name;
+        this.email = email;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null) return false;
+        if (this.getClass() != o.getClass()) return false;
+        User user = (User) o;
+        return id != user.id && (!name.equals(user.name) && !email.equals(user.email));
+    }
+    	
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        hash = 31 * hash + (int) id;
+        hash = 31 * hash + (name == null ? 0 : name.hashCode());
+        hash = 31 * hash + (email == null ? 0 : email.hashCode());
+        logger.info("hashCode() method called - Computed hash: " + hash);
+        return hash;
+    }
+    // getters and setters here
+}

core-java/hashcode/src/test/java/com/baeldung/application/ApplicationTest.java

@@ -0,0 +1,30 @@
+package com.baeldung.application;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import static org.junit.Assert.assertEquals;
+
+public class ApplicationTest {
+
+    private ByteArrayOutputStream outContent;
+
+    @Before
+    public void setUpPrintStreamInstance() throws Exception {
+        this.outContent = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(outContent));
+    }
+
+    @After
+    public void tearDownByteArrayOutputStream() throws Exception {
+        outContent = null;
+    }
+
+    @Test
+    public void main_NoInputState_TextPrintedToConsole() throws Exception {
+        Application.main(new String[]{});
+        assertEquals("User found in the collection", outContent.toString());
+    }
+}

core-java/hashcode/src/test/java/com/baeldung/entities/UserTest.java

@@ -0,0 +1,34 @@
+package com.baeldung.entities;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class UserTest {
+
+    private User user;
+    private User comparisonUser;
+
+    @Before
+    public void setUpUserInstances() {
+        this.user = new User(1L, "test", "test@domain.com");
+        this.comparisonUser = this.user;
+    }
+
+    @After
+    public void tearDownUserInstances() {
+        user = null;
+        comparisonUser = null;
+    }
+
+    @Test
+    public void equals_EqualUserInstance_TrueAssertion(){
+        Assert.assertTrue(user.equals(comparisonUser));
+    }
+
+    @Test
+    public void hashCode_UserHash_TrueAssertion() {
+        Assert.assertEquals(1792276941, user.hashCode());
+    }
+}

core-java/pom.xml

@@ -382,7 +382,7 @@
         </profile>
     </profiles>
 
-    <properties>
+    <properties>    	
         <!-- marshalling -->
         <jackson.version>2.8.5</jackson.version>
 
@@ -408,7 +408,7 @@
         <!-- testing -->
         <org.hamcrest.version>1.3</org.hamcrest.version>
         <junit.version>4.12</junit.version>
-        <mockito.version>1.10.19</mockito.version>
+        <mockito.version>2.8.9</mockito.version>
         <assertj.version>3.6.1</assertj.version>
         <avaitility.version>1.7.0</avaitility.version>
 

core-java/src/main/java/com/baeldung/concurrent/Scheduledexecutorservice/ScheduledExecutorServiceDemo.java

@@ -0,0 +1,34 @@
+package com.baeldung.concurrent.Scheduledexecutorservice;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+public class ScheduledExecutorServiceDemo {
+
+	public void execute() {
+		ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
+
+		ScheduledFuture<?> scheduledFuture = executorService.schedule(() -> {
+			// Task
+		}, 1, TimeUnit.SECONDS);
+
+		executorService.scheduleAtFixedRate(() -> {
+			// Task
+		}, 1, 10, TimeUnit.SECONDS);
+
+		executorService.scheduleWithFixedDelay(() -> {
+			// Task
+		}, 1, 10, TimeUnit.SECONDS);
+
+		Future<String> future = executorService.schedule(() -> {
+			// Task
+			return "Hellow world";
+		}, 1, TimeUnit.SECONDS);
+
+		executorService.shutdown();
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/atomic/SafeCounterWithLock.java

@@ -0,0 +1,13 @@
+package com.baeldung.concurrent.atomic;
+
+public class SafeCounterWithLock {
+    private volatile int counter;
+    
+    public int getValue() {
+        return counter;
+    }
+    
+    public synchronized void increment() {
+        counter++;
+    }
+}

core-java/src/main/java/com/baeldung/concurrent/atomic/SafeCounterWithoutLock.java

@@ -0,0 +1,21 @@
+package com.baeldung.concurrent.atomic;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class SafeCounterWithoutLock {
+    private final AtomicInteger counter = new AtomicInteger(0);
+    
+    public int getValue() {
+        return counter.get();
+    }
+    
+    public void increment() {
+        while(true) {
+            int existingValue = getValue();
+            int newValue = existingValue + 1;
+            if(counter.compareAndSet(existingValue, newValue)) {
+                return;
+            }
+        }
+    }
+}

core-java/src/main/java/com/baeldung/concurrent/atomic/UnsafeCounter.java

@@ -0,0 +1,13 @@
+package com.baeldung.concurrent.atomic;
+
+public class UnsafeCounter {
+    int counter;
+    
+    public int getValue() {
+        return counter;
+    }
+    
+    public void increment() {
+        counter++;
+    }
+}

core-java/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierExample.java

@@ -0,0 +1,24 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import java.util.concurrent.CyclicBarrier;
+
+public class CyclicBarrierExample {
+
+    public void start() {
+        CyclicBarrier cyclicBarrier = new CyclicBarrier(3, () -> {
+            // Task
+            System.out.println("All previous tasks are completed");
+        });
+
+        Thread t1 = new Thread(new Task(cyclicBarrier), "T1");
+        Thread t2 = new Thread(new Task(cyclicBarrier), "T2");
+        Thread t3 = new Thread(new Task(cyclicBarrier), "T3");
+
+        if (!cyclicBarrier.isBroken()) {
+            t1.start();
+            t2.start();
+            t3.start();
+        }
+    }
+}
+

core-java/src/main/java/com/baeldung/concurrent/cyclicbarrier/Task.java

@@ -0,0 +1,24 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+
+public class Task implements Runnable {
+
+    private CyclicBarrier barrier;
+
+    public Task(CyclicBarrier barrier) {
+        this.barrier = barrier;
+    }
+
+    @Override
+    public void run() {
+        try {
+            System.out.println("Thread : " + Thread.currentThread().getName() + " is waiting");
+            barrier.await();
+            System.out.println("Thread : " + Thread.currentThread().getName() + " is released");
+        } catch (InterruptedException | BrokenBarrierException e) {
+            e.printStackTrace();
+        }
+    }
+}

core-java/src/main/java/com/baeldung/concurrent/executor/ExecutorDemo.java

@@ -0,0 +1,14 @@
+package com.baeldung.concurrent.executor;
+
+import java.util.concurrent.Executor;
+
+public class ExecutorDemo {
+
+	public void execute() {
+		Executor executor = new Invoker();
+		executor.execute(()->{
+			// task to be performed
+		});
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/executor/Invoker.java

@@ -0,0 +1,12 @@
+package com.baeldung.concurrent.executor;
+
+import java.util.concurrent.Executor;
+
+public class Invoker implements Executor {
+
+	@Override
+	public void execute(Runnable r) {
+		r.run();
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/executorservice/ExecutorServiceDemo.java

@@ -0,0 +1,27 @@
+package com.baeldung.concurrent.executorservice;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+public class ExecutorServiceDemo {
+
+	ExecutorService executor = Executors.newFixedThreadPool(10);
+
+	public void execute() {
+
+		executor.submit(() -> {
+			new Task();
+		});
+
+		executor.shutdown();
+		executor.shutdownNow();
+		try {
+			executor.awaitTermination(20l, TimeUnit.NANOSECONDS);
+		} catch (InterruptedException e) {
+			e.printStackTrace();
+		}
+
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/executorservice/Task.java

@@ -0,0 +1,10 @@
+package com.baeldung.concurrent.executorservice;
+
+public class Task implements Runnable {
+
+	@Override
+	public void run() {
+		// task details
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/future/FutureDemo.java

@@ -0,0 +1,44 @@
+package com.baeldung.concurrent.future;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+public class FutureDemo {
+
+	public String invoke() {
+
+		String str = null;
+
+		ExecutorService executorService = Executors.newFixedThreadPool(10);
+
+		Future<String> future = executorService.submit(() -> {
+			// Task
+			Thread.sleep(10000l);
+			return "Hellow world";
+		});
+
+		future.cancel(false);
+
+		try {
+			future.get(20, TimeUnit.SECONDS);
+		} catch (InterruptedException | ExecutionException | TimeoutException e1) {
+			e1.printStackTrace();
+		}
+
+		if (future.isDone() && !future.isCancelled()) {
+			try {
+				str = future.get();
+			} catch (InterruptedException | ExecutionException e) {
+				e.printStackTrace();
+			}
+		}
+
+		return str;
+
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/semaphore/SemaPhoreDemo.java

@@ -0,0 +1,22 @@
+package com.baeldung.concurrent.semaphore;
+
+import java.util.concurrent.Semaphore;
+
+public class SemaPhoreDemo {
+
+	static Semaphore semaphore = new Semaphore(10);
+	
+	public void execute() throws InterruptedException {
+
+		System.out.println("Available permit : " + semaphore.availablePermits());
+		System.out.println("Number of threads waiting to acquire: " + semaphore.getQueueLength());
+
+		if (semaphore.tryAcquire()) {
+			semaphore.acquire();
+			// perform some critical operations
+			semaphore.release();
+		}
+
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/threadfactory/BaeldungThreadFactory.java

@@ -0,0 +1,23 @@
+package com.baeldung.concurrent.threadfactory;
+
+import java.util.concurrent.ThreadFactory;
+
+public class BaeldungThreadFactory implements ThreadFactory {
+
+	private int threadId;
+	private String name;
+
+	public BaeldungThreadFactory(String name) {
+		threadId = 1;
+		this.name = name;
+	}
+
+	@Override
+	public Thread newThread(Runnable r) {
+		Thread t = new Thread(r, name + "-Thread_" + threadId);
+		System.out.println("created new thread with id : " + threadId + " and name : " + t.getName());
+		threadId++;
+		return t;
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/threadfactory/Demo.java

@@ -0,0 +1,13 @@
+package com.baeldung.concurrent.threadfactory;
+
+public class Demo {
+
+	public void execute() {
+		BaeldungThreadFactory factory = new BaeldungThreadFactory("BaeldungThreadFactory");
+		for (int i = 0; i < 10; i++) {
+			Thread t = factory.newThread(new Task());
+			t.start();
+		}
+	}
+
+}

core-java/src/main/java/com/baeldung/concurrent/threadfactory/Task.java

@@ -0,0 +1,10 @@
+package com.baeldung.concurrent.threadfactory;
+
+public class Task implements Runnable {
+
+	@Override
+	public void run() {
+		// task details
+	}
+	
+}

core-java/src/main/java/com/baeldung/deserialization/AppleProduct.java

@@ -4,12 +4,12 @@ import java.io.Serializable;
 
 public class AppleProduct implements Serializable {
 
-     private static final long serialVersionUID = 1234567L; // user-defined (i.e. not default or generated)
-//    private static final long serialVersionUID = 7654321L; // user-defined (i.e. not default or generated)
+    private static final long serialVersionUID = 1234567L; // user-defined (i.e. not default or generated)
+    // private static final long serialVersionUID = 7654321L; // user-defined (i.e. not default or generated)
 
     public String headphonePort;
     public String thunderboltPort;
-    public String lighteningPort;
+    public String lightningPort;
 
     public String getHeadphonePort() {
         return headphonePort;
@@ -23,4 +23,8 @@ public class AppleProduct implements Serializable {
         return serialVersionUID;
     }
 
+    public String getLightningPort() {
+        return lightningPort;
+    }
+
 }

core-java/src/main/java/com/baeldung/deserialization/DeserializationUtility.java

@@ -9,11 +9,12 @@ public class DeserializationUtility {
 
     public static void main(String[] args) throws ClassNotFoundException, IOException {
 
-        String serializedObj = "rO0ABXNyACljb20uYmFlbGR1bmcuZGVzZXJpYWxpemF0aW9uLkFwcGxlUHJvZHVjdAAAAAAAEtaHAgADTAANaGVhZHBob25lUG9ydHQAEkxqYXZhL2xhbmcvU3RyaW5nO0wADmxpZ2h0ZW5pbmdQb3J0cQB+AAFMAA90aHVuZGVyYm9sdFBvcnRxAH4AAXhwdAARaGVhZHBob25lUG9ydDIwMjBwdAATdGh1bmRlcmJvbHRQb3J0MjAyMA==";
+        String serializedObj = "rO0ABXNyACljb20uYmFlbGR1bmcuZGVzZXJpYWxpemF0aW9uLkFwcGxlUHJvZHVjdAAAAAAAEtaHAgADTAANaGVhZHBob25lUG9ydHQAEkxqYXZhL2xhbmcvU3RyaW5nO0wADWxpZ2h0bmluZ1BvcnRxAH4AAUwAD3RodW5kZXJib2x0UG9ydHEAfgABeHB0ABFoZWFkcGhvbmVQb3J0MjAyMHQAEWxpZ2h0bmluZ1BvcnQyMDIwdAATdGh1bmRlcmJvbHRQb3J0MjAyMA==";
         System.out.println("Deserializing AppleProduct...");
         AppleProduct deserializedObj = (AppleProduct) deSerializeObjectFromString(serializedObj);
         System.out.println("Headphone port of AppleProduct:" + deserializedObj.getHeadphonePort());
         System.out.println("Thunderbolt port of AppleProduct:" + deserializedObj.getThunderboltPort());
+        System.out.println("LightningPort port of AppleProduct:" + deserializedObj.getLightningPort());
     }
 
     public static Object deSerializeObjectFromString(String s) throws IOException, ClassNotFoundException {

core-java/src/main/java/com/baeldung/deserialization/SerializationUtility.java

@@ -13,6 +13,7 @@ public class SerializationUtility {
         AppleProduct macBook = new AppleProduct();
         macBook.headphonePort = "headphonePort2020";
         macBook.thunderboltPort = "thunderboltPort2020";
+        macBook.lightningPort = "lightningPort2020";
 
         String serializedObj = serializeObjectToString(macBook);
         System.out.println("Serialized AppleProduct object to string:");

core-java/src/main/java/com/baeldung/temporaladjuster/CustomTemporalAdjuster.java

@@ -10,14 +10,13 @@ public class CustomTemporalAdjuster implements TemporalAdjuster {
 
     @Override
     public Temporal adjustInto(Temporal temporal) {
-        DayOfWeek dayOfWeek = DayOfWeek.of(temporal.get(ChronoField.DAY_OF_WEEK));
-        int daysToAdd;
-        if (dayOfWeek == DayOfWeek.FRIDAY)
-            daysToAdd = 3;
-        else if (dayOfWeek == DayOfWeek.SATURDAY)
-            daysToAdd = 2;
-        else
-            daysToAdd = 1;
-        return temporal.plus(daysToAdd, ChronoUnit.DAYS);
+        switch (DayOfWeek.of(temporal.get(ChronoField.DAY_OF_WEEK))) {
+            case FRIDAY:
+                return temporal.plus(3, ChronoUnit.DAYS);
+            case SATURDAY:
+                return temporal.plus(2, ChronoUnit.DAYS);
+            default:
+                return temporal.plus(1, ChronoUnit.DAYS);
+        }
     }
 }

core-java/src/main/java/org/baeldung/equalshashcode/entities/Rectangle.java

@@ -4,7 +4,7 @@ public class Rectangle extends Shape {
     private double width;
     private double length;
 
-    public Rectangle(double width, double length) {
+    Rectangle(double width, double length) {
         this.width = width;
         this.length = length;
     }

core-java/src/main/java/org/baeldung/executable/ExecutableMavenJar.java

@@ -1,11 +1,10 @@
 package org.baeldung.executable;
 
-import javax.swing.JOptionPane;
+import javax.swing.*;
 
 public class ExecutableMavenJar {
 
     public static void main(String[] args) {
         JOptionPane.showMessageDialog(null, "It worked!", "Executable Jar with Maven", 1);
     }
-
 }

core-java/src/test/java/com/baeldung/concurrent/atomic/ThreadSafeCounterTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.concurrent.atomic;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
+
+import org.junit.Test;
+
+public class ThreadSafeCounterTest {
+
+    @Test
+    public void givenMultiThread_whenSafeCounterWithLockIncrement() throws InterruptedException {
+        ExecutorService service = Executors.newFixedThreadPool(3);
+        SafeCounterWithLock safeCounter = new SafeCounterWithLock();
+
+        IntStream.range(0, 1000)
+          .forEach(count -> service.submit(safeCounter::increment));
+        service.awaitTermination(100, TimeUnit.MILLISECONDS);
+
+        assertEquals(1000, safeCounter.getValue());
+    }
+    
+    @Test
+    public void givenMultiThread_whenSafeCounterWithoutLockIncrement() throws InterruptedException {
+        ExecutorService service = Executors.newFixedThreadPool(3);
+        SafeCounterWithoutLock safeCounter = new SafeCounterWithoutLock();
+
+        IntStream.range(0, 1000)
+          .forEach(count -> service.submit(safeCounter::increment));
+        service.awaitTermination(100, TimeUnit.MILLISECONDS);
+
+        assertEquals(1000, safeCounter.getValue());
+    }
+    
+}

core-java/src/test/java/com/baeldung/concurrent/atomic/ThreadUnsafeCounterManualTest.java

@@ -0,0 +1,33 @@
+package com.baeldung.concurrent.atomic;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
+
+import org.junit.Test;
+
+/**
+ * This test shows the behaviour of a thread-unsafe class in a multithreaded scenario. We are calling
+ * the increment methods 1000 times from a pool of 3 threads. In most of the cases, the counter will 
+ * less than 1000, because of lost updates, however, occasionally it may reach 1000, when no threads
+ * called the method simultaneously. This may cause the build to fail occasionally. Hence excluding this
+ * test from build by adding this in manual test
+ */
+public class ThreadUnsafeCounterManualTest {
+
+    @Test
+    public void givenMultiThread_whenUnsafeCounterIncrement() throws InterruptedException {
+        ExecutorService service = Executors.newFixedThreadPool(3);
+        UnsafeCounter unsafeCounter = new UnsafeCounter();
+
+        IntStream.range(0, 1000)
+          .forEach(count -> service.submit(unsafeCounter::increment));
+        service.awaitTermination(100, TimeUnit.MILLISECONDS);
+
+        assertEquals(1000, unsafeCounter.getValue());
+    }
+    
+}

core-java/src/test/java/com/baeldung/deserialization/DeserializationUnitTest.java

@@ -12,7 +12,7 @@ import org.junit.Test;
 
 public class DeserializationUnitTest {
 
-    private static final String serializedObj = "rO0ABXNyACljb20uYmFlbGR1bmcuZGVzZXJpYWxpemF0aW9uLkFwcGxlUHJvZHVjdAAAAAAAEtaHAgADTAANaGVhZHBob25lUG9ydHQAEkxqYXZhL2xhbmcvU3RyaW5nO0wADmxpZ2h0ZW5pbmdQb3J0cQB+AAFMAA90aHVuZGVyYm9sdFBvcnRxAH4AAXhwdAARaGVhZHBob25lUG9ydDIwMjBwdAATdGh1bmRlcmJvbHRQb3J0MjAyMA==";
+    private static final String serializedObj = "rO0ABXNyACljb20uYmFlbGR1bmcuZGVzZXJpYWxpemF0aW9uLkFwcGxlUHJvZHVjdAAAAAAAdMuxAgADTAANaGVhZHBob25lUG9ydHQAEkxqYXZhL2xhbmcvU3RyaW5nO0wADWxpZ2h0bmluZ1BvcnRxAH4AAUwAD3RodW5kZXJib2x0UG9ydHEAfgABeHB0ABFoZWFkcGhvbmVQb3J0MjAyMHQAEWxpZ2h0bmluZ1BvcnQyMDIwdAATdGh1bmRlcmJvbHRQb3J0MjAyMA";
 
     private static long userDefinedSerialVersionUID = 1234567L;
 
@@ -25,20 +25,22 @@ public class DeserializationUnitTest {
     public void testDeserializeObj_compatible() throws IOException, ClassNotFoundException {
 
         assertEquals(userDefinedSerialVersionUID, AppleProduct.getSerialVersionUID());
-        
+
         AppleProduct macBook = new AppleProduct();
         macBook.headphonePort = "headphonePort2020";
         macBook.thunderboltPort = "thunderboltPort2020";
-        
+        macBook.lightningPort = "lightningPort2020";
+
         // serializes the "AppleProduct" object
         String serializedProduct = SerializationUtility.serializeObjectToString(macBook);
 
         // deserializes the "AppleProduct" object
         AppleProduct deserializedProduct = (AppleProduct) DeserializationUtility.deSerializeObjectFromString(serializedProduct);
-     
+
         assertTrue(deserializedProduct.headphonePort.equalsIgnoreCase(macBook.headphonePort));
         assertTrue(deserializedProduct.thunderboltPort.equalsIgnoreCase(macBook.thunderboltPort));
-    
+        assertTrue(deserializedProduct.lightningPort.equalsIgnoreCase(macBook.lightningPort));
+
     }
 
     /**
@@ -59,7 +61,6 @@ public class DeserializationUnitTest {
     public void testDeserializeObj_incompatible() throws ClassNotFoundException, IOException {
 
         assertNotEquals(userDefinedSerialVersionUID, AppleProduct.getSerialVersionUID());
-        
         // attempts to deserialize the "AppleProduct" object
         DeserializationUtility.deSerializeObjectFromString(serializedObj);
     }

core-java/src/test/java/com/baeldung/mappedbytebuffer/MappedByteBufferUnitTest.java

@@ -63,6 +63,6 @@ public class MappedByteBufferUnitTest {
 
     private Path getFileURIFromResources(String fileName) throws Exception {
         ClassLoader classLoader = getClass().getClassLoader();
-        return Paths.get(classLoader.getResource(fileName).getPath());
+        return Paths.get(classLoader.getResource(fileName).toURI());
     }
 }

core-java/src/test/java/com/baeldung/money/JavaMoneyUnitTest.java

@@ -179,7 +179,7 @@ public class JavaMoneyUnitTest {
         MonetaryAmountFormat customFormat = MonetaryFormats.getAmountFormat(AmountFormatQueryBuilder
           .of(Locale.US)
           .set(CurrencyStyle.NAME)
-          .set("pattern", "00000.00 ¤")
+          .set("pattern", "00000.00 ¤")
           .build());
         String customFormatted = customFormat.format(oneDollar);
 

core-java/src/test/java/com/baeldung/temporaladjusters/CustomTemporalAdjusterTest.java

@@ -1,34 +1,34 @@
 package com.baeldung.temporaladjusters;
 
-import java.time.DayOfWeek;
-import java.time.LocalDate;
-import java.time.Period;
-import java.time.temporal.TemporalAdjuster;
-import java.time.temporal.TemporalAdjusters;
-
+import com.baeldung.temporaladjuster.CustomTemporalAdjuster;
 import org.junit.Assert;
 import org.junit.Test;
 
-import com.baeldung.temporaladjuster.CustomTemporalAdjuster;
+import java.time.LocalDate;
+import java.time.Period;
+import java.time.temporal.TemporalAdjuster;
+
+import static org.junit.Assert.assertEquals;
 
 public class CustomTemporalAdjusterTest {
 
+    private static final TemporalAdjuster NEXT_WORKING_DAY = new CustomTemporalAdjuster();
+
     @Test
     public void whenAdjustAndImplementInterface_thenNextWorkingDay() {
         LocalDate localDate = LocalDate.of(2017, 07, 8);
         CustomTemporalAdjuster temporalAdjuster = new CustomTemporalAdjuster();
         LocalDate nextWorkingDay = localDate.with(temporalAdjuster);
 
-        Assert.assertEquals("2017-07-10", nextWorkingDay.toString());
+        assertEquals("2017-07-10", nextWorkingDay.toString());
     }
 
     @Test
     public void whenAdjust_thenNextWorkingDay() {
         LocalDate localDate = LocalDate.of(2017, 07, 8);
-        TemporalAdjuster temporalAdjuster = NEXT_WORKING_DAY;
-        LocalDate date = localDate.with(temporalAdjuster);
+        LocalDate date = localDate.with(NEXT_WORKING_DAY);
 
-        Assert.assertEquals("2017-07-10", date.toString());
+        assertEquals("2017-07-10", date.toString());
     }
 
     @Test
@@ -39,18 +39,6 @@ public class CustomTemporalAdjusterTest {
 
         String fourteenDaysAfterDate = "2017-07-22";
 
-        Assert.assertEquals(fourteenDaysAfterDate, result.toString());
+        assertEquals(fourteenDaysAfterDate, result.toString());
     }
-
-    static TemporalAdjuster NEXT_WORKING_DAY = TemporalAdjusters.ofDateAdjuster(date -> {
-        DayOfWeek dayOfWeek = date.getDayOfWeek();
-        int daysToAdd;
-        if (dayOfWeek == DayOfWeek.FRIDAY)
-            daysToAdd = 3;
-        else if (dayOfWeek == DayOfWeek.SATURDAY)
-            daysToAdd = 2;
-        else
-            daysToAdd = 1;
-        return date.plusDays(daysToAdd);
-    });
-}
+}

core-java/src/test/java/org/baeldung/java/io/JavaScannerUnitTest.java

@@ -11,6 +11,7 @@ import java.io.FileInputStream;
 import java.io.FileReader;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Locale;
 import java.util.Scanner;
 
 import org.junit.Test;
@@ -105,6 +106,7 @@ public class JavaScannerUnitTest {
     public void whenScanString_thenCorrect() throws IOException {
         final String input = "Hello 1 F 3.5";
         final Scanner scanner = new Scanner(input);
+        scanner.useLocale(Locale.US);
 
         assertEquals("Hello", scanner.next());
         assertEquals(1, scanner.nextInt());

ejb/README.md

@@ -1,3 +1,4 @@
 ## Relevant articles:
 
 - [Guide to EJB Set-up](http://www.baeldung.com/ejb-intro)
+- [Java EE Session Beans](http://www.baeldung.com/ejb-session-beans)

feign/pom.xml

@@ -1,12 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>com.baeldung.feign</groupId>
     <artifactId>feign-client</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
 
     <parent>
         <groupId>com.baeldung</groupId>

guava/README.md

@@ -28,3 +28,4 @@
 - [Guide to Guava ClassToInstanceMap](http://www.baeldung.com/guava-class-to-instance-map)
 - [Guide to Guava MinMaxPriorityQueue and EvictingQueue](http://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
 - [Guide to Mathematical Utilities in Guava](http://www.baeldung.com/guava-math)
+- [Bloom Filter in Java using Guava](http://www.baeldung.com/guava-bloom-filter)

guava21/pom.xml

@@ -4,8 +4,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>com.baeldung.guava</groupId>
-    <artifactId>tutorial</artifactId>
+    <artifactId>guava21</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <parent>
@@ -15,12 +14,17 @@
      </parent>
 
     <dependencies>
-        <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
             <version>21.0</version>
         </dependency>
+
+        <dependency>
+            <groupId>org.jooq</groupId>
+            <artifactId>jool</artifactId>
+            <version>0.9.12</version>
+        </dependency>
     </dependencies>
 
 

guava21/src/test/java/com.baeldung.guava.zip/ZipCollectionTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.zip;
+package com.baeldung.guava.zip;
 
 import com.google.common.collect.Streams;
 import org.jooq.lambda.Seq;
@@ -15,9 +15,9 @@ import static org.junit.Assert.assertEquals;
 
 public class ZipCollectionTest {
 
-    List<String> names;
-    List<Integer> ages;
-    List<String> expectedOutput;
+    private List<String> names;
+    private List<Integer> ages;
+    private List<String> expectedOutput;
 
     @Before
     public void setUp() throws Exception {

guava21/src/test/java/com/baeldung/guava/tutorial/AtomicLongMapIntegrationTest.java

@@ -1,3 +1,5 @@
+package com.baeldung.guava.tutorial;
+
 import com.google.common.util.concurrent.AtomicLongMap;
 import org.junit.Test;
 

guava21/src/test/java/com/baeldung/guava/tutorial/ComparatorsUnitTest.java

@@ -1,3 +1,5 @@
+package com.baeldung.guava.tutorial;
+
 import com.google.common.collect.Comparators;
 import org.junit.Assert;
 import org.junit.Test;

guava21/src/test/java/com/baeldung/guava/tutorial/GuavaStreamsUnitTest.java

@@ -1,21 +1,33 @@
+package com.baeldung.guava.tutorial;
+
 import com.google.common.collect.Streams;
-import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
-import java.util.*;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Optional;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+import java.util.OptionalLong;
+import java.util.stream.Collectors;
 import java.util.stream.DoubleStream;
 import java.util.stream.IntStream;
 import java.util.stream.LongStream;
 import java.util.stream.Stream;
 
+import static com.baeldung.guava.tutorial.StreamUtility.assertStreamEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
 public class GuavaStreamsUnitTest {
 
-    List<Integer> numbers;
+    private List<Integer> numbers;
 
     @Before
     public void setUp() {
-        numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20);
+        numbers = IntStream.rangeClosed(1, 20).boxed().collect(Collectors.toList());
     }
 
     @Test
@@ -24,17 +36,17 @@ public class GuavaStreamsUnitTest {
         Stream streamFromCollection = Streams.stream(numbers);
 
         //Assert.assertNotNull(streamFromCollection);
-        StreamUtility.assertStreamEquals(streamFromCollection, numbers.stream());
+        assertStreamEquals(streamFromCollection, numbers.stream());
     }
 
     @Test
     public void createStreamsWithIterable() {
-        Iterable<Integer> numbersIterable = (Iterable<Integer>) numbers;
+        Iterable<Integer> numbersIterable = numbers;
 
         Stream streamFromIterable = Streams.stream(numbersIterable);
 
-        Assert.assertNotNull(streamFromIterable);
-        StreamUtility.assertStreamEquals(streamFromIterable, numbers.stream());
+        assertNotNull(streamFromIterable);
+        assertStreamEquals(streamFromIterable, numbers.stream());
     }
 
     @Test
@@ -43,8 +55,8 @@ public class GuavaStreamsUnitTest {
 
         Stream streamFromIterator = Streams.stream(numbersIterator);
 
-        Assert.assertNotNull(streamFromIterator);
-        StreamUtility.assertStreamEquals(streamFromIterator, numbers.stream());
+        assertNotNull(streamFromIterator);
+        assertStreamEquals(streamFromIterator, numbers.stream());
     }
 
     @Test
@@ -52,8 +64,8 @@ public class GuavaStreamsUnitTest {
 
         Stream streamFromOptional = Streams.stream(Optional.of(1));
 
-        Assert.assertNotNull(streamFromOptional);
-        Assert.assertEquals(streamFromOptional.count(), 1);
+        assertNotNull(streamFromOptional);
+        assertEquals(streamFromOptional.count(), 1);
     }
 
     @Test
@@ -61,8 +73,8 @@ public class GuavaStreamsUnitTest {
 
         LongStream streamFromOptionalLong = Streams.stream(OptionalLong.of(1));
 
-        Assert.assertNotNull(streamFromOptionalLong);
-        Assert.assertEquals(streamFromOptionalLong.count(), 1);
+        assertNotNull(streamFromOptionalLong);
+        assertEquals(streamFromOptionalLong.count(), 1);
     }
 
     @Test
@@ -71,7 +83,7 @@ public class GuavaStreamsUnitTest {
         IntStream streamFromOptionalInt = Streams.stream(OptionalInt.of(1));
 
         //Assert.assertNotNull(streamFromOptionalInt);
-        Assert.assertEquals(streamFromOptionalInt.count(), 1);
+        assertEquals(streamFromOptionalInt.count(), 1);
     }
 
     @Test
@@ -80,63 +92,54 @@ public class GuavaStreamsUnitTest {
         DoubleStream streamFromOptionalDouble = Streams.stream(OptionalDouble.of(1.0));
 
         //Assert.assertNotNull(streamFromOptionalDouble);
-        Assert.assertEquals(streamFromOptionalDouble.count(), 1);
+        assertEquals(streamFromOptionalDouble.count(), 1);
 
     }
 
     @Test
     public void concatStreamsOfSameType() {
-        Stream oddNumbers = Arrays
-          .asList(1, 3, 5, 7, 9, 11, 13, 15, 17, 19)
-          .stream();
-        Stream evenNumbers = Arrays
-          .asList(2, 4, 6, 8, 10, 12, 14, 16, 18, 20)
-          .stream();
+        List<Integer> oddNumbers = Arrays
+          .asList(1, 3, 5, 7, 9, 11, 13, 15, 17, 19);
+        List<Integer> evenNumbers = Arrays
+          .asList(2, 4, 6, 8, 10, 12, 14, 16, 18, 20);
 
-        Stream combinedStreams = Streams.concat(oddNumbers, evenNumbers);
+        Stream<Integer> combinedStreams = Streams.concat(oddNumbers.stream(), evenNumbers.stream());
 
         //Assert.assertNotNull(combinedStreams);
-        StreamUtility.assertStreamEquals(combinedStreams, Stream.concat(oddNumbers, evenNumbers));
+        assertStreamEquals(combinedStreams, Stream.concat(oddNumbers.stream(), evenNumbers.stream()));
     }
 
     @Test
     public void concatStreamsOfTypeLongStream() {
-        LongStream firstTwenty = LongStream.range(1, 20);
-        LongStream nextTwenty = LongStream.range(21, 40);
+        LongStream combinedStreams = Streams.concat(LongStream.range(1, 21), LongStream.range(21, 40));
 
-        LongStream combinedStreams = Streams.concat(firstTwenty, nextTwenty);
-
-        Assert.assertNotNull(combinedStreams);
-        StreamUtility.assertStreamEquals(combinedStreams, LongStream.concat(firstTwenty, nextTwenty));
+        assertNotNull(combinedStreams);
+        assertStreamEquals(combinedStreams, LongStream.range(1, 40));
     }
 
     @Test
     public void concatStreamsOfTypeIntStream() {
-        IntStream firstTwenty = IntStream.range(1, 20);
-        IntStream nextTwenty = IntStream.range(21, 40);
+        IntStream combinedStreams = Streams.concat(IntStream.range(1, 20), IntStream.range(21, 40));
 
-        IntStream combinedStreams = Streams.concat(firstTwenty, nextTwenty);
-
-        Assert.assertNotNull(combinedStreams);
-        StreamUtility.assertStreamEquals(combinedStreams, IntStream.concat(firstTwenty, nextTwenty));
+        assertNotNull(combinedStreams);
+        assertStreamEquals(combinedStreams, IntStream.concat(IntStream.range(1, 20), IntStream.range(21, 40)));
     }
 
     @Test
     public void findLastOfStream() {
         Optional<Integer> lastElement = Streams.findLast(numbers.stream());
 
-        Assert.assertNotNull(lastElement.get());
-        Assert.assertEquals(lastElement.get(), numbers.get(20));
+        assertEquals(lastElement.get(), numbers.get(19));
     }
 
     @Test
     public void mapWithIndexTest() {
-        Stream stringSream = Stream.of("a", "b", "c");
+        Stream<String> stringStream = Stream.of("a", "b", "c");
 
-        Stream<String> mappedStream = Streams.mapWithIndex(stringSream, (str, index) -> str + ":" + index);
+        Stream<String> mappedStream = Streams.mapWithIndex(stringStream, (str, index) -> str + ":" + index);
 
         //Assert.assertNotNull(mappedStream);
-        Assert.assertEquals(mappedStream
+        assertEquals(mappedStream
           .findFirst()
           .get(), "a:0");
 
@@ -144,12 +147,12 @@ public class GuavaStreamsUnitTest {
 
     @Test
     public void streamsZipTest() {
-        Stream stringSream = Stream.of("a", "b", "c");
-        Stream intStream = Stream.of(1, 2, 3);
+        Stream<String> stringSream = Stream.of("a", "b", "c");
+        Stream<Integer> intStream = Stream.of(1, 2, 3);
         Stream<String> mappedStream = Streams.zip(stringSream, intStream, (str, index) -> str + ":" + index);
 
         //Assert.assertNotNull(mappedStream);
-        Assert.assertEquals(mappedStream
+        assertEquals(mappedStream
           .findFirst()
           .get(), "a:1");
 

guava21/src/test/java/com/baeldung/guava/tutorial/InternBuilderUnitTest.java

@@ -1,3 +1,5 @@
+package com.baeldung.guava.tutorial;
+
 import com.google.common.collect.Interner;
 import com.google.common.collect.Interners;
 import org.junit.Assert;

guava21/src/test/java/com/baeldung/guava/tutorial/MonitorUnitTest.java

@@ -1,3 +1,5 @@
+package com.baeldung.guava.tutorial;
+
 import com.google.common.util.concurrent.Monitor;
 import org.junit.Assert;
 import org.junit.Test;

guava21/src/test/java/com/baeldung/guava/tutorial/MoreCollectorsUnitTest.java

@@ -1,3 +1,5 @@
+package com.baeldung.guava.tutorial;
+
 import com.google.common.collect.MoreCollectors;
 import org.junit.Assert;
 import org.junit.Test;

guava21/src/test/java/com/baeldung/guava/tutorial/StreamUtility.java

@@ -1,3 +1,5 @@
+package com.baeldung.guava.tutorial;
+
 import org.junit.Assert;
 
 import java.util.Iterator;

httpclient/pom.xml

@@ -147,7 +147,7 @@
         <wiremock.version>2.5.1</wiremock.version>
 
         <httpcore.version>4.4.5</httpcore.version>
-        <httpclient.version>4.5.2</httpclient.version> <!-- 4.3.6 --> <!-- 4.4-beta1 -->
+        <httpclient.version>4.5.3</httpclient.version> <!-- 4.3.6 --> <!-- 4.4-beta1 -->
 
         <!-- maven plugins -->
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>

httpclient/src/test/java/org/baeldung/httpclient/HttpAsyncClientLiveTest.java

@@ -101,12 +101,7 @@ public class HttpAsyncClientLiveTest {
 
     @Test
     public void whenUseSSLWithHttpAsyncClient_thenCorrect() throws Exception {
-        final TrustStrategy acceptingTrustStrategy = new TrustStrategy() {
-            @Override
-            public final boolean isTrusted(final X509Certificate[] certificate, final String authType) {
-                return true;
-            }
-        };
+        final TrustStrategy acceptingTrustStrategy = (certificate, authType) -> true;
         final SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
 
         final CloseableHttpAsyncClient client = HttpAsyncClients.custom().setSSLHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER).setSSLContext(sslContext).build();
@@ -160,7 +155,7 @@ public class HttpAsyncClientLiveTest {
         private final HttpContext context;
         private final HttpGet request;
 
-        public GetThread(final CloseableHttpAsyncClient client, final HttpGet request) {
+        GetThread(final CloseableHttpAsyncClient client, final HttpGet request) {
             this.client = client;
             context = HttpClientContext.create();
             this.request = request;

httpclient/src/test/java/org/baeldung/httpclient/HttpClientHeadersLiveTest.java

@@ -1,11 +1,7 @@
 package org.baeldung.httpclient;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.List;
-
+import com.google.common.collect.Lists;
 import org.apache.http.Header;
-import org.apache.http.HttpEntity;
 import org.apache.http.HttpHeaders;
 import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
@@ -20,7 +16,8 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-import com.google.common.collect.Lists;
+import java.io.IOException;
+import java.util.List;
 
 public class HttpClientHeadersLiveTest {
 
@@ -37,19 +34,7 @@ public class HttpClientHeadersLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests - headers - deprecated

httpclient/src/test/java/org/baeldung/httpclient/HttpClientMultipartLiveTest.java

@@ -1,22 +1,7 @@
 package org.baeldung.httpclient;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.net.URL;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpStatus;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.entity.ContentType;
@@ -30,6 +15,20 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
 public class HttpClientMultipartLiveTest {
 
     // No longer available
@@ -48,7 +47,7 @@ public class HttpClientMultipartLiveTest {
     @Before
     public final void before() {
         client = HttpClientBuilder.create()
-            .build();
+          .build();
         post = new HttpPost(SERVER);
     }
 
@@ -67,15 +66,7 @@ public class HttpClientMultipartLiveTest {
             LOGGER.log(Level.SEVERE, e.getMessage(), e);
             throw e;
         }
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests
@@ -83,8 +74,8 @@ public class HttpClientMultipartLiveTest {
     @Test
     public final void givenFileandMultipleTextParts_whenUploadwithAddPart_thenNoExceptions() throws IOException {
         final URL url = Thread.currentThread()
-            .getContextClassLoader()
-            .getResource("uploads/" + TEXTFILENAME);
+          .getContextClassLoader()
+          .getResource("uploads/" + TEXTFILENAME);
 
         final File file = new File(url.getPath());
         final FileBody fileBody = new FileBody(file, ContentType.DEFAULT_BINARY);
@@ -102,7 +93,7 @@ public class HttpClientMultipartLiveTest {
         response = client.execute(post);
 
         final int statusCode = response.getStatusLine()
-            .getStatusCode();
+          .getStatusCode();
         final String responseString = getContent();
         final String contentTypeInHeader = getContentTypeHeader();
         assertThat(statusCode, equalTo(HttpStatus.SC_OK));
@@ -113,10 +104,10 @@ public class HttpClientMultipartLiveTest {
     }
 
     @Test
-    public final void givenFileandTextPart_whenUploadwithAddBinaryBodyandAddTextBody_ThenNoExeption() throws ClientProtocolException, IOException {
+    public final void givenFileandTextPart_whenUploadwithAddBinaryBodyandAddTextBody_ThenNoExeption() throws IOException {
         final URL url = Thread.currentThread()
-            .getContextClassLoader()
-            .getResource("uploads/" + TEXTFILENAME);
+          .getContextClassLoader()
+          .getResource("uploads/" + TEXTFILENAME);
         final File file = new File(url.getPath());
         final String message = "This is a multipart post";
         final MultipartEntityBuilder builder = MultipartEntityBuilder.create();
@@ -127,7 +118,7 @@ public class HttpClientMultipartLiveTest {
         post.setEntity(entity);
         response = client.execute(post);
         final int statusCode = response.getStatusLine()
-            .getStatusCode();
+          .getStatusCode();
         final String responseString = getContent();
         final String contentTypeInHeader = getContentTypeHeader();
         assertThat(statusCode, equalTo(HttpStatus.SC_OK));
@@ -138,13 +129,13 @@ public class HttpClientMultipartLiveTest {
     }
 
     @Test
-    public final void givenFileAndInputStreamandText_whenUploadwithAddBinaryBodyandAddTextBody_ThenNoException() throws ClientProtocolException, IOException {
+    public final void givenFileAndInputStreamandText_whenUploadwithAddBinaryBodyandAddTextBody_ThenNoException() throws IOException {
         final URL url = Thread.currentThread()
-            .getContextClassLoader()
-            .getResource("uploads/" + ZIPFILENAME);
+          .getContextClassLoader()
+          .getResource("uploads/" + ZIPFILENAME);
         final URL url2 = Thread.currentThread()
-            .getContextClassLoader()
-            .getResource("uploads/" + IMAGEFILENAME);
+          .getContextClassLoader()
+          .getResource("uploads/" + IMAGEFILENAME);
         final InputStream inputStream = new FileInputStream(url.getPath());
         final File file = new File(url2.getPath());
         final String message = "This is a multipart post";
@@ -157,7 +148,7 @@ public class HttpClientMultipartLiveTest {
         post.setEntity(entity);
         response = client.execute(post);
         final int statusCode = response.getStatusLine()
-            .getStatusCode();
+          .getStatusCode();
         final String responseString = getContent();
         final String contentTypeInHeader = getContentTypeHeader();
         assertThat(statusCode, equalTo(HttpStatus.SC_OK));
@@ -169,7 +160,7 @@ public class HttpClientMultipartLiveTest {
     }
 
     @Test
-    public final void givenCharArrayandText_whenUploadwithAddBinaryBodyandAddTextBody_ThenNoException() throws ClientProtocolException, IOException {
+    public final void givenCharArrayandText_whenUploadwithAddBinaryBodyandAddTextBody_ThenNoException() throws IOException {
         final String message = "This is a multipart post";
         final byte[] bytes = "binary code".getBytes();
         final MultipartEntityBuilder builder = MultipartEntityBuilder.create();
@@ -180,7 +171,7 @@ public class HttpClientMultipartLiveTest {
         post.setEntity(entity);
         response = client.execute(post);
         final int statusCode = response.getStatusLine()
-            .getStatusCode();
+          .getStatusCode();
         final String responseString = getContent();
         final String contentTypeInHeader = getContentTypeHeader();
         assertThat(statusCode, equalTo(HttpStatus.SC_OK));
@@ -192,21 +183,21 @@ public class HttpClientMultipartLiveTest {
 
     // UTIL
 
-    final String getContent() throws IOException {
+    private String getContent() throws IOException {
         rd = new BufferedReader(new InputStreamReader(response.getEntity()
-            .getContent()));
+          .getContent()));
         String body = "";
-        String content = "";
+        StringBuilder content = new StringBuilder();
         while ((body = rd.readLine()) != null) {
-            content += body + "\n";
+            content.append(body).append("\n");
         }
-        return content.trim();
+        return content.toString().trim();
     }
 
-    final String getContentTypeHeader() throws IOException {
+    private String getContentTypeHeader() throws IOException {
         return post.getEntity()
-            .getContentType()
-            .toString();
+          .getContentType()
+          .toString();
     }
 
 }

httpclient/src/test/java/org/baeldung/httpclient/HttpClientPostingLiveTest.java

@@ -1,20 +1,10 @@
 package org.baeldung.httpclient;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertThat;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
 import org.apache.http.NameValuePair;
 import org.apache.http.auth.AuthenticationException;
 import org.apache.http.auth.UsernamePasswordCredentials;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.entity.UrlEncodedFormEntity;
 import org.apache.http.client.fluent.Form;
 import org.apache.http.client.fluent.Request;
@@ -29,17 +19,26 @@ import org.apache.http.impl.client.HttpClients;
 import org.apache.http.message.BasicNameValuePair;
 import org.junit.Test;
 
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+
 /*
  * NOTE : Need module spring-rest to be running
  */
 public class HttpClientPostingLiveTest {
-    private static final String SAMPLE_URL = "http://localhost:8080/spring-rest/users";
+    private static final String SAMPLE_URL = "http://localhost:8082/spring-rest/users";
     private static final String URL_SECURED_BY_BASIC_AUTHENTICATION = "http://browserspy.dk/password-ok.php";
     private static final String DEFAULT_USER = "test";
     private static final String DEFAULT_PASS = "test";
 
     @Test
-    public void whenSendPostRequestUsingHttpClient_thenCorrect() throws ClientProtocolException, IOException {
+    public void whenSendPostRequestUsingHttpClient_thenCorrect() throws IOException {
         final CloseableHttpClient client = HttpClients.createDefault();
         final HttpPost httpPost = new HttpPost(SAMPLE_URL);
 
@@ -54,7 +53,7 @@ public class HttpClientPostingLiveTest {
     }
 
     @Test
-    public void whenSendPostRequestWithAuthorizationUsingHttpClient_thenCorrect() throws ClientProtocolException, IOException, AuthenticationException {
+    public void whenSendPostRequestWithAuthorizationUsingHttpClient_thenCorrect() throws IOException, AuthenticationException {
         final CloseableHttpClient client = HttpClients.createDefault();
         final HttpPost httpPost = new HttpPost(URL_SECURED_BY_BASIC_AUTHENTICATION);
 
@@ -68,7 +67,7 @@ public class HttpClientPostingLiveTest {
     }
 
     @Test
-    public void whenPostJsonUsingHttpClient_thenCorrect() throws ClientProtocolException, IOException {
+    public void whenPostJsonUsingHttpClient_thenCorrect() throws IOException {
         final CloseableHttpClient client = HttpClients.createDefault();
         final HttpPost httpPost = new HttpPost(SAMPLE_URL + "/detail");
 
@@ -84,14 +83,14 @@ public class HttpClientPostingLiveTest {
     }
 
     @Test
-    public void whenPostFormUsingHttpClientFluentAPI_thenCorrect() throws ClientProtocolException, IOException {
+    public void whenPostFormUsingHttpClientFluentAPI_thenCorrect() throws IOException {
         final HttpResponse response = Request.Post(SAMPLE_URL).bodyForm(Form.form().add("username", DEFAULT_USER).add("password", DEFAULT_PASS).build()).execute().returnResponse();
 
         assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
     }
 
     @Test
-    public void whenSendMultipartRequestUsingHttpClient_thenCorrect() throws ClientProtocolException, IOException {
+    public void whenSendMultipartRequestUsingHttpClient_thenCorrect() throws IOException {
         final CloseableHttpClient client = HttpClients.createDefault();
         final HttpPost httpPost = new HttpPost(SAMPLE_URL + "/multipart");
 
@@ -109,7 +108,7 @@ public class HttpClientPostingLiveTest {
     }
 
     @Test
-    public void whenUploadFileUsingHttpClient_thenCorrect() throws ClientProtocolException, IOException {
+    public void whenUploadFileUsingHttpClient_thenCorrect() throws IOException {
         final CloseableHttpClient client = HttpClients.createDefault();
         final HttpPost httpPost = new HttpPost(SAMPLE_URL + "/upload");
 
@@ -125,7 +124,7 @@ public class HttpClientPostingLiveTest {
     }
 
     @Test
-    public void whenGetUploadFileProgressUsingHttpClient_thenCorrect() throws ClientProtocolException, IOException {
+    public void whenGetUploadFileProgressUsingHttpClient_thenCorrect() throws IOException {
         final CloseableHttpClient client = HttpClients.createDefault();
         final HttpPost httpPost = new HttpPost(SAMPLE_URL + "/upload");
 
@@ -133,12 +132,7 @@ public class HttpClientPostingLiveTest {
         builder.addBinaryBody("file", new File("src/test/resources/test.in"), ContentType.APPLICATION_OCTET_STREAM, "file.ext");
         final HttpEntity multipart = builder.build();
 
-        final ProgressEntityWrapper.ProgressListener pListener = new ProgressEntityWrapper.ProgressListener() {
-            @Override
-            public void progress(final float percentage) {
-                assertFalse(Float.compare(percentage, 100) > 0);
-            }
-        };
+        final ProgressEntityWrapper.ProgressListener pListener = percentage -> assertFalse(Float.compare(percentage, 100) > 0);
 
         httpPost.setEntity(new ProgressEntityWrapper(multipart, pListener));
 

httpclient/src/test/java/org/baeldung/httpclient/HttpClientRedirectLiveTest.java

@@ -1,13 +1,5 @@
 package org.baeldung.httpclient;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.http.HttpEntity;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.methods.HttpHead;
@@ -21,6 +13,12 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.util.Arrays;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
 public class HttpClientRedirectLiveTest {
 
     private CloseableHttpClient instance;
@@ -34,25 +32,13 @@ public class HttpClientRedirectLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests
 
     @Test
-    public final void givenRedirectsAreDisabledViaNewApi_whenConsumingUrlWhichRedirects_thenNotRedirected() throws ClientProtocolException, IOException {
+    public final void givenRedirectsAreDisabledViaNewApi_whenConsumingUrlWhichRedirects_thenNotRedirected() throws IOException {
         instance = HttpClients.custom().disableRedirectHandling().build();
 
         final HttpGet httpGet = new HttpGet("http://t.co/I5YYd9tddw");
@@ -62,7 +48,7 @@ public class HttpClientRedirectLiveTest {
     }
 
     @Test
-    public final void givenRedirectsAreDisabled_whenConsumingUrlWhichRedirects_thenNotRedirected() throws ClientProtocolException, IOException {
+    public final void givenRedirectsAreDisabled_whenConsumingUrlWhichRedirects_thenNotRedirected() throws IOException {
         instance = HttpClientBuilder.create().disableRedirectHandling().build();
         response = instance.execute(new HttpGet("http://t.co/I5YYd9tddw"));
         assertThat(response.getStatusLine().getStatusCode(), equalTo(301));
@@ -71,26 +57,22 @@ public class HttpClientRedirectLiveTest {
     // redirect with POST
 
     @Test
-    public final void givenPostRequest_whenConsumingUrlWhichRedirects_thenNotRedirected() throws ClientProtocolException, IOException {
+    public final void givenPostRequest_whenConsumingUrlWhichRedirects_thenNotRedirected() throws IOException {
         instance = HttpClientBuilder.create().build();
         response = instance.execute(new HttpPost("http://t.co/I5YYd9tddw"));
         assertThat(response.getStatusLine().getStatusCode(), equalTo(301));
     }
 
     @Test
-    public final void givenRedirectingPOSTViaPost4_2Api_whenConsumingUrlWhichRedirectsWithPOST_thenRedirected() throws ClientProtocolException, IOException {
+    public final void givenRedirectingPOSTViaPost4_2Api_whenConsumingUrlWhichRedirectsWithPOST_thenRedirected() throws IOException {
         final CloseableHttpClient client = HttpClients.custom().setRedirectStrategy(new DefaultRedirectStrategy() {
             /** Redirectable methods. */
-            private final String[] REDIRECT_METHODS = new String[] { HttpGet.METHOD_NAME, HttpPost.METHOD_NAME, HttpHead.METHOD_NAME };
+            private final String[] REDIRECT_METHODS = new String[]{HttpGet.METHOD_NAME, HttpPost.METHOD_NAME, HttpHead.METHOD_NAME};
 
             @Override
             protected boolean isRedirectable(final String method) {
-                for (final String m : REDIRECT_METHODS) {
-                    if (m.equalsIgnoreCase(method)) {
-                        return true;
-                    }
-                }
-                return false;
+                return Arrays.stream(REDIRECT_METHODS)
+                  .anyMatch(m -> m.equalsIgnoreCase(method));
             }
         }).build();
 
@@ -99,7 +81,7 @@ public class HttpClientRedirectLiveTest {
     }
 
     @Test
-    public final void givenRedirectingPOSTVia4_2Api_whenConsumingUrlWhichRedirectsWithPOST_thenRedirected() throws ClientProtocolException, IOException {
+    public final void givenRedirectingPOSTVia4_2Api_whenConsumingUrlWhichRedirectsWithPOST_thenRedirected() throws IOException {
         final CloseableHttpClient client = HttpClients.custom().setRedirectStrategy(new LaxRedirectStrategy()).build();
 
         response = client.execute(new HttpPost("http://t.co/I5YYd9tddw"));
@@ -107,7 +89,7 @@ public class HttpClientRedirectLiveTest {
     }
 
     @Test
-    public final void givenRedirectingPOST_whenConsumingUrlWhichRedirectsWithPOST_thenRedirected() throws ClientProtocolException, IOException {
+    public final void givenRedirectingPOST_whenConsumingUrlWhichRedirectsWithPOST_thenRedirected() throws IOException {
         instance = HttpClientBuilder.create().setRedirectStrategy(new LaxRedirectStrategy()).build();
         response = instance.execute(new HttpPost("http://t.co/I5YYd9tddw"));
         assertThat(response.getStatusLine().getStatusCode(), equalTo(200));

httpclient/src/test/java/org/baeldung/httpclient/HttpClientTimeoutLiveTest.java

@@ -1,13 +1,5 @@
 package org.baeldung.httpclient;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.http.HttpEntity;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
@@ -18,31 +10,24 @@ import org.apache.http.impl.client.HttpClientBuilder;
 import org.junit.After;
 import org.junit.Test;
 
+import java.io.IOException;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
 public class HttpClientTimeoutLiveTest {
 
     private CloseableHttpResponse response;
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests
 
     @Test
-    public final void givenUsingNewApi_whenSettingTimeoutViaRequestConfig_thenCorrect() throws ClientProtocolException, IOException {
+    public final void givenUsingNewApi_whenSettingTimeoutViaRequestConfig_thenCorrect() throws IOException {
         final int timeout = 2;
         final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
         final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
@@ -56,7 +41,7 @@ public class HttpClientTimeoutLiveTest {
     }
 
     @Test
-    public final void givenUsingNewApi_whenSettingTimeoutViaSocketConfig_thenCorrect() throws ClientProtocolException, IOException {
+    public final void givenUsingNewApi_whenSettingTimeoutViaSocketConfig_thenCorrect() throws IOException {
         final int timeout = 2;
 
         final SocketConfig config = SocketConfig.custom().setSoTimeout(timeout * 1000).build();
@@ -70,7 +55,7 @@ public class HttpClientTimeoutLiveTest {
     }
 
     @Test
-    public final void givenUsingNewApi_whenSettingTimeoutViaHighLevelApi_thenCorrect() throws ClientProtocolException, IOException {
+    public final void givenUsingNewApi_whenSettingTimeoutViaHighLevelApi_thenCorrect() throws IOException {
         final int timeout = 5;
 
         final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
@@ -87,7 +72,7 @@ public class HttpClientTimeoutLiveTest {
      * This simulates a timeout against a domain with multiple routes/IPs to it (not a single raw IP)
      */
     @Test(expected = HttpHostConnectException.class)
-    public final void givenTimeoutIsConfigured_whenTimingOut_thenTimeoutException() throws ClientProtocolException, IOException {
+    public final void givenTimeoutIsConfigured_whenTimingOut_thenTimeoutException() throws IOException {
         final int timeout = 3;
 
         final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();

httpclient/src/test/java/org/baeldung/httpclient/HttpsClientSslLiveTest.java

@@ -1,14 +1,5 @@
 package org.baeldung.httpclient;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.security.GeneralSecurityException;
-
-import javax.net.ssl.SSLContext;
-import javax.net.ssl.SSLHandshakeException;
-
 import org.apache.http.HttpResponse;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.conn.ClientConnectionManager;
@@ -28,6 +19,14 @@ import org.apache.http.ssl.SSLContextBuilder;
 import org.apache.http.ssl.SSLContexts;
 import org.junit.Test;
 
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLHandshakeException;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.junit.Assert.assertThat;
+
 /**
  * This test requires a localhost server over HTTPS <br>
  * It should only be manually run, not part of the automated build

httpclient/src/test/java/org/baeldung/httpclient/ProgressEntityWrapper.java

@@ -10,7 +10,7 @@ import org.apache.http.entity.HttpEntityWrapper;
 public class ProgressEntityWrapper extends HttpEntityWrapper {
     private final ProgressListener listener;
 
-    public ProgressEntityWrapper(final HttpEntity entity, final ProgressListener listener) {
+    ProgressEntityWrapper(final HttpEntity entity, final ProgressListener listener) {
         super(entity);
         this.listener = listener;
     }
@@ -20,7 +20,7 @@ public class ProgressEntityWrapper extends HttpEntityWrapper {
         super.writeTo(new CountingOutputStream(outstream, listener, getContentLength()));
     }
 
-    public static interface ProgressListener {
+    public interface ProgressListener {
         void progress(float percentage);
     }
 
@@ -30,7 +30,7 @@ public class ProgressEntityWrapper extends HttpEntityWrapper {
         private long transferred;
         private long totalBytes;
 
-        public CountingOutputStream(final OutputStream out, final ProgressListener listener, final long totalBytes) {
+        CountingOutputStream(final OutputStream out, final ProgressListener listener, final long totalBytes) {
             super(out);
             this.listener = listener;
             transferred = 0;

httpclient/src/test/java/org/baeldung/httpclient/ResponseUtil.java

@@ -0,0 +1,26 @@
+package org.baeldung.httpclient;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.client.methods.CloseableHttpResponse;
+
+import java.io.IOException;
+
+public final class ResponseUtil {
+    private ResponseUtil() {
+    }
+
+    public static void closeResponse(CloseableHttpResponse response) throws IOException {
+        if (response == null) {
+            return;
+        }
+
+        try {
+            final HttpEntity entity = response.getEntity();
+            if (entity != null) {
+                entity.getContent().close();
+            }
+        } finally {
+            response.close();
+        }
+    }
+}

httpclient/src/test/java/org/baeldung/httpclient/advancedconfig/HttpClientAdvancedConfigurationIntegrationTest.java

@@ -24,7 +24,14 @@ import org.junit.Test;
 
 import java.io.IOException;
 
-import static com.github.tomakehurst.wiremock.client.WireMock.*;
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.containing;
+import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.post;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
 import static org.junit.Assert.assertEquals;
 
 public class HttpClientAdvancedConfigurationIntegrationTest {
@@ -40,9 +47,9 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
         //given
         String userAgent = "BaeldungAgent/1.0";
         serviceMock.stubFor(get(urlEqualTo("/detail"))
-                .withHeader("User-Agent", equalTo(userAgent))
-                .willReturn(aResponse()
-                        .withStatus(200)));
+          .withHeader("User-Agent", equalTo(userAgent))
+          .willReturn(aResponse()
+            .withStatus(200)));
 
         HttpClient httpClient = HttpClients.createDefault();
         HttpGet httpGet = new HttpGet("http://localhost:8089/detail");
@@ -60,10 +67,10 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
         //given
         String xmlBody = "<xml><id>1</id></xml>";
         serviceMock.stubFor(post(urlEqualTo("/person"))
-                .withHeader("Content-Type", equalTo("application/xml"))
-                .withRequestBody(equalTo(xmlBody))
-                .willReturn(aResponse()
-                        .withStatus(200)));
+          .withHeader("Content-Type", equalTo("application/xml"))
+          .withRequestBody(equalTo(xmlBody))
+          .willReturn(aResponse()
+            .withStatus(200)));
 
         HttpClient httpClient = HttpClients.createDefault();
         HttpPost httpPost = new HttpPost("http://localhost:8089/person");
@@ -83,17 +90,17 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
     public void givenServerThatIsBehindProxy_whenClientIsConfiguredToSendRequestViaProxy_shouldReturn200() throws IOException {
         //given
         proxyMock.stubFor(get(urlMatching(".*"))
-                .willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
+          .willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
 
         serviceMock.stubFor(get(urlEqualTo("/private"))
-                .willReturn(aResponse().withStatus(200)));
+          .willReturn(aResponse().withStatus(200)));
 
 
         HttpHost proxy = new HttpHost("localhost", 8090);
         DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
         HttpClient httpclient = HttpClients.custom()
-                .setRoutePlanner(routePlanner)
-                .build();
+          .setRoutePlanner(routePlanner)
+          .build();
 
         //when
         final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
@@ -109,9 +116,9 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
     public void givenServerThatIsBehindAuthorizationProxy_whenClientSendRequest_shouldAuthorizeProperly() throws IOException {
         //given
         proxyMock.stubFor(get(urlMatching("/private"))
-                .willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
+          .willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
         serviceMock.stubFor(get(urlEqualTo("/private"))
-                .willReturn(aResponse().withStatus(200)));
+          .willReturn(aResponse().withStatus(200)));
 
 
         HttpHost proxy = new HttpHost("localhost", 8090);
@@ -120,7 +127,7 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
         // Client credentials
         CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
         credentialsProvider.setCredentials(new AuthScope(proxy),
-                new UsernamePasswordCredentials("username_admin", "secret_password"));
+          new UsernamePasswordCredentials("username_admin", "secret_password"));
 
 
         // Create AuthCache instance
@@ -135,9 +142,9 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
 
 
         HttpClient httpclient = HttpClients.custom()
-                .setRoutePlanner(routePlanner)
-                .setDefaultCredentialsProvider(credentialsProvider)
-                .build();
+          .setRoutePlanner(routePlanner)
+          .setDefaultCredentialsProvider(credentialsProvider)
+          .build();
 
 
         //when

httpclient/src/test/java/org/baeldung/httpclient/base/HttpClientBasicLiveTest.java

@@ -1,13 +1,5 @@
 package org.baeldung.httpclient.base;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.http.HttpEntity;
 import org.apache.http.HttpStatus;
 import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
@@ -16,10 +8,17 @@ import org.apache.http.entity.ContentType;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.util.EntityUtils;
+import org.baeldung.httpclient.ResponseUtil;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.notNullValue;
+import static org.junit.Assert.assertThat;
+
 public class HttpClientBasicLiveTest {
 
     private static final String SAMPLE_URL = "http://www.github.com";
@@ -35,19 +34,7 @@ public class HttpClientBasicLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests

httpclient/src/test/java/org/baeldung/httpclient/base/HttpClientBasicPostLiveTest.java

@@ -1,22 +1,20 @@
 package org.baeldung.httpclient.base;
 
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.http.HttpEntity;
 import org.apache.http.auth.AuthenticationException;
 import org.apache.http.auth.UsernamePasswordCredentials;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.auth.BasicScheme;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
+import org.baeldung.httpclient.ResponseUtil;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
+
 public class HttpClientBasicPostLiveTest {
 
     private static final String SAMPLE_URL = "http://www.github.com";
@@ -32,37 +30,25 @@ public class HttpClientBasicPostLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests - non-GET
 
     @Test
-    public final void whenExecutingPostRequest_thenNoExceptions() throws ClientProtocolException, IOException {
+    public final void whenExecutingPostRequest_thenNoExceptions() throws IOException {
         instance.execute(new HttpPost(SAMPLE_URL));
     }
 
     @Test
-    public final void whenExecutingPostRequestWithBody_thenNoExceptions() throws ClientProtocolException, IOException {
+    public final void whenExecutingPostRequestWithBody_thenNoExceptions() throws IOException {
         final HttpPost request = new HttpPost(SAMPLE_URL);
         request.setEntity(new StringEntity("in the body of the POST"));
         instance.execute(request);
     }
 
     @Test
-    public final void givenAuth_whenExecutingPostRequestWithBody_thenNoExceptions() throws ClientProtocolException, IOException, AuthenticationException {
+    public final void givenAuth_whenExecutingPostRequestWithBody_thenNoExceptions() throws IOException, AuthenticationException {
         final HttpPost request = new HttpPost(SAMPLE_URL);
         request.setEntity(new StringEntity("in the body of the POST"));
         final UsernamePasswordCredentials creds = new UsernamePasswordCredentials("username", "password");

httpclient/src/test/java/org/baeldung/httpclient/base/HttpClientLiveTest.java

@@ -11,12 +11,12 @@ import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
+import org.baeldung.httpclient.ResponseUtil;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
 import java.io.IOException;
-import java.io.InputStream;
 
 import static org.hamcrest.Matchers.emptyArray;
 import static org.hamcrest.Matchers.not;
@@ -37,19 +37,7 @@ public class HttpClientLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests

httpclient/src/test/java/org/baeldung/httpclient/base/HttpClientSandboxLiveTest.java

@@ -1,9 +1,5 @@
 package org.baeldung.httpclient.base;
 
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.http.HttpEntity;
 import org.apache.http.auth.AuthScope;
 import org.apache.http.auth.UsernamePasswordCredentials;
 import org.apache.http.client.CredentialsProvider;
@@ -12,8 +8,11 @@ import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.BasicCredentialsProvider;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
+import org.baeldung.httpclient.ResponseUtil;
 import org.junit.Test;
 
+import java.io.IOException;
+
 /*
  * NOTE : Need module spring-security-rest-basic-auth to be running
  */
@@ -32,15 +31,6 @@ public class HttpClientSandboxLiveTest {
 
         System.out.println(response.getStatusLine());
 
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                // EntityUtils.consume(entity);
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 }

httpclient/src/test/java/org/baeldung/httpclient/conn/HttpClientConnectionManagementLiveTest.java

@@ -1,11 +1,5 @@
 package org.baeldung.httpclient.conn;
 
-import static org.junit.Assert.assertTrue;
-
-import java.io.IOException;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-
 import org.apache.http.HeaderElement;
 import org.apache.http.HeaderElementIterator;
 import org.apache.http.HttpClientConnection;
@@ -36,6 +30,12 @@ import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+
+import static org.junit.Assert.assertTrue;
+
 public class HttpClientConnectionManagementLiveTest {
     private static final String SERVER1 = "http://www.petrikainulainen.net/";
     private static final String SERVER7 = "http://www.baeldung.com/";
@@ -129,7 +129,7 @@ public class HttpClientConnectionManagementLiveTest {
     @Test
     // @Ignore
     // Example 3.2. TESTER VERSION
-    /*tester*/public final void whenTwoConnectionsForTwoRequests_thenTwoConnectionsAreLeased() throws InterruptedException {
+    /*tester*/ public final void whenTwoConnectionsForTwoRequests_thenTwoConnectionsAreLeased() throws InterruptedException {
         poolingConnManager = new PoolingHttpClientConnectionManager();
         final CloseableHttpClient client1 = HttpClients.custom().setConnectionManager(poolingConnManager).build();
         final CloseableHttpClient client2 = HttpClients.custom().setConnectionManager(poolingConnManager).build();
@@ -173,7 +173,7 @@ public class HttpClientConnectionManagementLiveTest {
     @Test
     // @Ignore
     // 4.2 Tester Version
-    /*tester*/public final void whenExecutingSameRequestsInDifferentThreads_thenUseDefaultConnLimit() throws InterruptedException, IOException {
+    /*tester*/ public final void whenExecutingSameRequestsInDifferentThreads_thenUseDefaultConnLimit() throws InterruptedException, IOException {
         poolingConnManager = new PoolingHttpClientConnectionManager();
         client = HttpClients.custom().setConnectionManager(poolingConnManager).build();
         final TesterVersion_MultiHttpClientConnThread thread1 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
@@ -266,7 +266,7 @@ public class HttpClientConnectionManagementLiveTest {
     @Test
     // @Ignore
     // 6.2 TESTER VERSION
-    /*tester*/public final void whenConnectionsNeededGreaterThanMaxTotal_thenReuseConnections() throws InterruptedException {
+    /*tester*/ public final void whenConnectionsNeededGreaterThanMaxTotal_thenReuseConnections() throws InterruptedException {
         poolingConnManager = new PoolingHttpClientConnectionManager();
         poolingConnManager.setDefaultMaxPerRoute(5);
         poolingConnManager.setMaxTotal(5);
@@ -333,7 +333,7 @@ public class HttpClientConnectionManagementLiveTest {
     @Test
     @Ignore("Very Long Running")
     // 8.2 TESTER VERSION
-    /*tester*/public final void whenCustomizedIdleConnMonitor_thenEliminateIdleConns() throws InterruptedException, IOException {
+    /*tester*/ public final void whenCustomizedIdleConnMonitor_thenEliminateIdleConns() throws InterruptedException, IOException {
         poolingConnManager = new PoolingHttpClientConnectionManager();
         client = HttpClients.custom().setConnectionManager(poolingConnManager).build();
         final IdleConnectionMonitorThread staleMonitor = new IdleConnectionMonitorThread(poolingConnManager);

httpclient/src/test/java/org/baeldung/httpclient/conn/IdleConnectionMonitorThread.java

@@ -9,7 +9,7 @@ public class IdleConnectionMonitorThread extends Thread {
     private final HttpClientConnectionManager connMgr;
     private volatile boolean shutdown;
 
-    public IdleConnectionMonitorThread(final PoolingHttpClientConnectionManager connMgr) {
+    IdleConnectionMonitorThread(final PoolingHttpClientConnectionManager connMgr) {
         super();
         this.connMgr = connMgr;
     }
@@ -31,7 +31,7 @@ public class IdleConnectionMonitorThread extends Thread {
         }
     }
 
-    public final void shutdown() {
+    private void shutdown() {
         shutdown = true;
         synchronized (this) {
             notifyAll();

httpclient/src/test/java/org/baeldung/httpclient/conn/MultiHttpClientConnThread.java

@@ -18,23 +18,23 @@ public class MultiHttpClientConnThread extends Thread {
     private final HttpGet get;
 
     private PoolingHttpClientConnectionManager connManager;
-    public int leasedConn;
+    private int leasedConn;
 
-    public MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get, final PoolingHttpClientConnectionManager connManager) {
+    MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get, final PoolingHttpClientConnectionManager connManager) {
         this.client = client;
         this.get = get;
         this.connManager = connManager;
         leasedConn = 0;
     }
 
-    public MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get) {
+    MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get) {
         this.client = client;
         this.get = get;
     }
 
     // API
 
-    public final int getLeasedConn() {
+    final int getLeasedConn() {
         return leasedConn;
     }
 
@@ -61,8 +61,6 @@ public class MultiHttpClientConnThread extends Thread {
             }
 
             EntityUtils.consume(response.getEntity());
-        } catch (final ClientProtocolException ex) {
-            logger.error("", ex);
         } catch (final IOException ex) {
             logger.error("", ex);
         }

httpclient/src/test/java/org/baeldung/httpclient/conn/TesterVersion_MultiHttpClientConnThread.java

@@ -18,7 +18,7 @@ public class TesterVersion_MultiHttpClientConnThread extends Thread {
     private final HttpGet get;
     private PoolingHttpClientConnectionManager connManager;
 
-    public TesterVersion_MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get, final PoolingHttpClientConnectionManager connManager) {
+    TesterVersion_MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get, final PoolingHttpClientConnectionManager connManager) {
         this.client = client;
         this.get = get;
         this.connManager = Preconditions.checkNotNull(connManager);
@@ -38,8 +38,6 @@ public class TesterVersion_MultiHttpClientConnThread extends Thread {
 
             logger.info("After - Leased Connections = " + connManager.getTotalStats().getLeased());
             logger.info("After - Available Connections = " + connManager.getTotalStats().getAvailable());
-        } catch (final ClientProtocolException ex) {
-            logger.error("", ex);
         } catch (final IOException ex) {
             logger.error("", ex);
         }

httpclient/src/test/java/org/baeldung/httpclient/rare/HttpClientUnshortenLiveTest.java

@@ -1,12 +1,7 @@
 package org.baeldung.httpclient.rare;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.List;
-
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.Pair;
 import org.apache.http.Header;
@@ -20,8 +15,12 @@ import org.apache.http.util.EntityUtils;
 import org.junit.Before;
 import org.junit.Test;
 
-import com.google.common.base.Preconditions;
-import com.google.common.collect.Lists;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
 
 public class HttpClientUnshortenLiveTest {
 
@@ -52,7 +51,7 @@ public class HttpClientUnshortenLiveTest {
 
     // API
 
-    final String expand(final String urlArg) throws IOException {
+    private String expand(final String urlArg) throws IOException {
         String originalUrl = urlArg;
         String newUrl = expandSingleLevel(originalUrl);
         while (!originalUrl.equals(newUrl)) {
@@ -81,7 +80,7 @@ public class HttpClientUnshortenLiveTest {
         return newUrl;
     }
 
-    final Pair<Integer, String> expandSingleLevelSafe(final String url) throws IOException {
+    private Pair<Integer, String> expandSingleLevelSafe(final String url) throws IOException {
         HttpHead request = null;
         HttpEntity httpEntity = null;
         InputStream entityContentStream = null;
@@ -95,15 +94,15 @@ public class HttpClientUnshortenLiveTest {
 
             final int statusCode = httpResponse.getStatusLine().getStatusCode();
             if (statusCode != 301 && statusCode != 302) {
-                return new ImmutablePair<Integer, String>(statusCode, url);
+                return new ImmutablePair<>(statusCode, url);
             }
             final Header[] headers = httpResponse.getHeaders(HttpHeaders.LOCATION);
             Preconditions.checkState(headers.length == 1);
             final String newUrl = headers[0].getValue();
 
-            return new ImmutablePair<Integer, String>(statusCode, newUrl);
+            return new ImmutablePair<>(statusCode, newUrl);
         } catch (final IllegalArgumentException uriEx) {
-            return new ImmutablePair<Integer, String>(500, url);
+            return new ImmutablePair<>(500, url);
         } finally {
             if (request != null) {
                 request.releaseConnection();
@@ -117,7 +116,7 @@ public class HttpClientUnshortenLiveTest {
         }
     }
 
-    final String expandSingleLevel(final String url) throws IOException {
+    private String expandSingleLevel(final String url) throws IOException {
         HttpHead request = null;
 
         try {
@@ -130,9 +129,8 @@ public class HttpClientUnshortenLiveTest {
             }
             final Header[] headers = httpResponse.getHeaders(HttpHeaders.LOCATION);
             Preconditions.checkState(headers.length == 1);
-            final String newUrl = headers[0].getValue();
 
-            return newUrl;
+            return headers[0].getValue();
         } catch (final IllegalArgumentException uriEx) {
             return url;
         } finally {

httpclient/src/test/java/org/baeldung/httpclient/sec/HttpClientAuthLiveTest.java

@@ -1,21 +1,12 @@
 package org.baeldung.httpclient.sec;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.charset.Charset;
-
 import org.apache.commons.codec.binary.Base64;
-import org.apache.http.HttpEntity;
 import org.apache.http.HttpHeaders;
 import org.apache.http.HttpHost;
 import org.apache.http.HttpStatus;
 import org.apache.http.auth.AuthScope;
 import org.apache.http.auth.UsernamePasswordCredentials;
 import org.apache.http.client.AuthCache;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.CredentialsProvider;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
@@ -26,10 +17,17 @@ import org.apache.http.impl.client.BasicCredentialsProvider;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.protocol.HttpContext;
+import org.baeldung.httpclient.ResponseUtil;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.nio.charset.Charset;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
 /*
  * NOTE : Need module spring-security-rest-basic-auth to be running
  */
@@ -51,25 +49,13 @@ public class HttpClientAuthLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests
 
     @Test
-    public final void whenExecutingBasicGetRequestWithBasicAuthenticationEnabled_thenSuccess() throws ClientProtocolException, IOException {
+    public final void whenExecutingBasicGetRequestWithBasicAuthenticationEnabled_thenSuccess() throws IOException {
         client = HttpClientBuilder.create().setDefaultCredentialsProvider(provider()).build();
 
         response = client.execute(new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION));
@@ -79,7 +65,7 @@ public class HttpClientAuthLiveTest {
     }
 
     @Test
-    public final void givenAuthenticationIsPreemptive_whenExecutingBasicGetRequestWithBasicAuthenticationEnabled_thenSuccess() throws ClientProtocolException, IOException {
+    public final void givenAuthenticationIsPreemptive_whenExecutingBasicGetRequestWithBasicAuthenticationEnabled_thenSuccess() throws IOException {
         client = HttpClientBuilder.create().build();
         response = client.execute(new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION), context());
 
@@ -88,7 +74,7 @@ public class HttpClientAuthLiveTest {
     }
 
     @Test
-    public final void givenAuthorizationHeaderIsSetManually_whenExecutingGetRequest_thenSuccess() throws ClientProtocolException, IOException {
+    public final void givenAuthorizationHeaderIsSetManually_whenExecutingGetRequest_thenSuccess() throws IOException {
         client = HttpClientBuilder.create().build();
 
         final HttpGet request = new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION);
@@ -100,7 +86,7 @@ public class HttpClientAuthLiveTest {
     }
 
     @Test
-    public final void givenAuthorizationHeaderIsSetManually_whenExecutingGetRequest_thenSuccess2() throws ClientProtocolException, IOException {
+    public final void givenAuthorizationHeaderIsSetManually_whenExecutingGetRequest_thenSuccess2() throws IOException {
         final HttpGet request = new HttpGet(URL_SECURED_BY_BASIC_AUTHENTICATION);
         final String auth = DEFAULT_USER + ":" + DEFAULT_PASS;
         final byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(Charset.forName("ISO-8859-1")));
@@ -116,14 +102,14 @@ public class HttpClientAuthLiveTest {
 
     // UTILS
 
-    private final CredentialsProvider provider() {
+    private CredentialsProvider provider() {
         final CredentialsProvider provider = new BasicCredentialsProvider();
         final UsernamePasswordCredentials credentials = new UsernamePasswordCredentials(DEFAULT_USER, DEFAULT_PASS);
         provider.setCredentials(AuthScope.ANY, credentials);
         return provider;
     }
 
-    private final HttpContext context() {
+    private HttpContext context() {
         final HttpHost targetHost = new HttpHost("localhost", 8080, "http");
         final CredentialsProvider credsProvider = new BasicCredentialsProvider();
         credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(DEFAULT_USER, DEFAULT_PASS));
@@ -141,12 +127,11 @@ public class HttpClientAuthLiveTest {
         return context;
     }
 
-    private final String authorizationHeader(final String username, final String password) {
+    private String authorizationHeader(final String username, final String password) {
         final String auth = username + ":" + password;
         final byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(Charset.forName("ISO-8859-1")));
-        final String authHeader = "Basic " + new String(encodedAuth);
 
-        return authHeader;
+        return "Basic " + new String(encodedAuth);
     }
 
 }

httpclient/src/test/java/org/baeldung/httpclient/sec/HttpClientCookieLiveTest.java

@@ -1,13 +1,5 @@
 package org.baeldung.httpclient.sec;
 
-import static org.hamcrest.Matchers.equalTo;
-import static org.junit.Assert.assertThat;
-
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.http.HttpEntity;
-import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.HttpClient;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
@@ -18,10 +10,16 @@ import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.impl.cookie.BasicClientCookie;
 import org.apache.http.protocol.BasicHttpContext;
 import org.apache.http.protocol.HttpContext;
+import org.baeldung.httpclient.ResponseUtil;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
 public class HttpClientCookieLiveTest {
 
     private CloseableHttpClient instance;
@@ -35,25 +33,13 @@ public class HttpClientCookieLiveTest {
 
     @After
     public final void after() throws IllegalStateException, IOException {
-        if (response == null) {
-            return;
-        }
-
-        try {
-            final HttpEntity entity = response.getEntity();
-            if (entity != null) {
-                final InputStream instream = entity.getContent();
-                instream.close();
-            }
-        } finally {
-            response.close();
-        }
+        ResponseUtil.closeResponse(response);
     }
 
     // tests
 
     @Test
-    public final void whenSettingCookiesOnARequest_thenCorrect() throws ClientProtocolException, IOException {
+    public final void whenSettingCookiesOnARequest_thenCorrect() throws IOException {
         instance = HttpClientBuilder.create().build();
         final HttpGet request = new HttpGet("http://www.github.com");
         request.setHeader("Cookie", "JSESSIONID=1234");
@@ -64,7 +50,7 @@ public class HttpClientCookieLiveTest {
     }
 
     @Test
-    public final void givenUsingDeprecatedApi_whenSettingCookiesOnTheHttpClient_thenCorrect() throws ClientProtocolException, IOException {
+    public final void givenUsingDeprecatedApi_whenSettingCookiesOnTheHttpClient_thenCorrect() throws IOException {
         final BasicCookieStore cookieStore = new BasicCookieStore();
         final BasicClientCookie cookie = new BasicClientCookie("JSESSIONID", "1234");
         cookie.setDomain(".github.com");
@@ -80,7 +66,7 @@ public class HttpClientCookieLiveTest {
     }
 
     @Test
-    public final void whenSettingCookiesOnTheHttpClient_thenCookieSentCorrectly() throws ClientProtocolException, IOException {
+    public final void whenSettingCookiesOnTheHttpClient_thenCookieSentCorrectly() throws IOException {
         final BasicCookieStore cookieStore = new BasicCookieStore();
         final BasicClientCookie cookie = new BasicClientCookie("JSESSIONID", "1234");
         cookie.setDomain(".github.com");
@@ -96,7 +82,7 @@ public class HttpClientCookieLiveTest {
     }
 
     @Test
-    public final void whenSettingCookiesOnTheRequest_thenCookieSentCorrectly() throws ClientProtocolException, IOException {
+    public final void whenSettingCookiesOnTheRequest_thenCookieSentCorrectly() throws IOException {
         final BasicCookieStore cookieStore = new BasicCookieStore();
         final BasicClientCookie cookie = new BasicClientCookie("JSESSIONID", "1234");
         cookie.setDomain(".github.com");

javax-servlets/pom.xml

@@ -39,7 +39,7 @@
 
     <properties>
         <javax.servlet.version>3.1.0</javax.servlet.version>
-        <org.apache.httpcomponents.version>4.5.2</org.apache.httpcomponents.version>
+        <org.apache.httpcomponents.version>4.5.3</org.apache.httpcomponents.version>
     </properties>
 
 </project>

javax-servlets/src/test/java/com/baeldung/servlets/FormServletLiveTest.java

@@ -1,24 +1,24 @@
 package com.baeldung.servlets;
 
-import static org.junit.Assert.assertEquals;
-
-import java.util.ArrayList;
-import java.util.List;
-
 import org.apache.http.HttpResponse;
 import org.apache.http.client.HttpClient;
 import org.apache.http.client.entity.UrlEncodedFormEntity;
 import org.apache.http.client.methods.HttpPost;
-import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.message.BasicNameValuePair;
 import org.junit.Test;
 
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
 public class FormServletLiveTest {
 
     @Test
     public void whenPostRequestUsingHttpClient_thenCorrect() throws Exception {
 
-        HttpClient client = new DefaultHttpClient();
+        HttpClient client = HttpClientBuilder.create().build();
         HttpPost method = new HttpPost("http://localhost:8080/calculateServlet");
 
         List<BasicNameValuePair> nvps = new ArrayList<>();

jmh/pom.xml

@@ -1,52 +1,60 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>jmh</artifactId>
-	<packaging>jar</packaging>
-	<version>1.0-SNAPSHOT</version>
-	<name>jmh</name>
-	<url>http://maven.apache.org</url>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>jmh</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0-SNAPSHOT</version>
+    <name>jmh</name>
+    <url>http://maven.apache.org</url>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>1.8</java.version>
-	</properties>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+        <maven.compiler.source>1.6</maven.compiler.source>
+        <maven.compiler.target>1.6</maven.compiler.target>
+    </properties>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.openjdk.jmh</groupId>
-			<artifactId>jmh-core</artifactId>
-			<version>1.19</version>
-		</dependency>
-		<dependency>
-			<groupId>org.openjdk.jmh</groupId>
-			<artifactId>jmh-generator-annprocess</artifactId>
-			<version>1.19</version>
-		</dependency>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>3.8.1</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-core</artifactId>
+            <version>1.19</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-generator-annprocess</artifactId>
+            <version>1.19</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>3.8.1</version>
+            <scope>test</scope>
+        </dependency>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-jar-plugin</artifactId>
-				<configuration>
-					<archive>
-						<manifest>
-							<mainClass>com.baeldung.Application</mainClass>
-						</manifest>
-					</archive>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>21.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>com.baeldung.BenchmarkRunner</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>

jmh/src/main/java/com/baeldung/Application.java

@@ -1,14 +0,0 @@
-package com.baeldung;
-
-import java.io.IOException;
-
-import org.openjdk.jmh.Main;
-import org.openjdk.jmh.runner.RunnerException;
-
-public class Application {
-
-	public static void main(String[] args) throws RunnerException, IOException {
-		Main.main(args);
-	}
-
-}

jmh/src/main/java/com/baeldung/BenchMark.java

@@ -1,12 +1,48 @@
 package com.baeldung;
 
-import org.openjdk.jmh.annotations.Benchmark;
+import com.google.common.hash.HashFunction;
+import com.google.common.hash.Hasher;
+import com.google.common.hash.Hashing;
+import org.openjdk.jmh.annotations.*;
+
+import java.nio.charset.Charset;
 
 public class BenchMark {
 
-	@Benchmark
-	public void init() {
-		
-	}
+    @State(Scope.Benchmark)
+    public static class ExecutionPlan {
+
+        @Param({ "100", "200", "300", "500", "1000" })
+        public int iterations;
+
+        public Hasher murmur3;
+
+        public String password = "4v3rys3kur3p455w0rd";
+
+        @Setup(Level.Invocation)
+        public void setUp() {
+            murmur3 = Hashing.murmur3_128().newHasher();
+        }
+    }
+
+    @Fork(value = 1, warmups = 1)
+    @Benchmark
+    @BenchmarkMode(Mode.Throughput)
+    @Warmup(iterations = 5)
+    public void benchMurmur3_128(ExecutionPlan plan) {
+
+        for (int i = plan.iterations; i > 0; i--) {
+            plan.murmur3.putString(plan.password, Charset.defaultCharset());
+        }
+
+        plan.murmur3.hash();
+    }
+
+    @Benchmark
+    @Fork(value = 1, warmups = 1)
+    @BenchmarkMode(Mode.Throughput)
+    public void init() {
+        // Do nothing
+    }
 
 }

jmh/src/main/java/com/baeldung/BenchmarkRunner.java

@@ -0,0 +1,9 @@
+package com.baeldung;
+
+public class BenchmarkRunner {
+
+    public static void main(String[] args) throws Exception {
+        org.openjdk.jmh.Main.main(args);
+    }
+
+}

jmh/src/test/java/com/baeldung/AppTest.java

@@ -1,38 +0,0 @@
-package com.baeldung;
-
-import junit.framework.Test;
-import junit.framework.TestCase;
-import junit.framework.TestSuite;
-
-/**
- * Unit test for simple App.
- */
-public class AppTest 
-    extends TestCase
-{
-    /**
-     * Create the test case
-     *
-     * @param testName name of the test case
-     */
-    public AppTest( String testName )
-    {
-        super( testName );
-    }
-
-    /**
-     * @return the suite of tests being tested
-     */
-    public static Test suite()
-    {
-        return new TestSuite( AppTest.class );
-    }
-
-    /**
-     * Rigourous Test :-)
-     */
-    public void testApp()
-    {
-        assertTrue( true );
-    }
-}

jooby/conf/application.conf

@@ -0,0 +1,2 @@
+#application.secret = 2o128940921eo298e21
+#db = /url/to/the/datastore

jooby/conf/logback.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration scan="true" scanPeriod="15 seconds" debug="false">
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>[%d{ISO8601}]-[%thread] %-5level %logger - %msg%n</pattern>
+    </encoder>
+  </appender>
+
+  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+    <file>log/jooby.log</file>
+    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+      <fileNamePattern>log/jooby.%d{yyyy-MM-dd}.log</fileNamePattern>
+      <totalSizeCap>1mb</totalSizeCap>
+      <maxHistory>7</maxHistory>
+    </rollingPolicy>
+
+    <encoder>
+      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
+    </encoder>
+  </appender>
+
+  <appender name="ACCESS" class="ch.qos.logback.core.rolling.RollingFileAppender">
+    <file>log/access.log</file>
+    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+      <fileNamePattern>log/access.%d{yyyy-MM-dd}.log</fileNamePattern>
+      <totalSizeCap>1mb</totalSizeCap>
+      <maxHistory>7</maxHistory>
+    </rollingPolicy>
+
+    <encoder>
+      <pattern>%msg%n</pattern>
+    </encoder>
+  </appender>
+
+  <logger name="org.jooby.RequestLogger" additivity="false">
+    <appender-ref ref="ACCESS" />
+  </logger>
+
+  <root level="INFO">
+    <appender-ref ref="STDOUT" />
+  </root>
+</configuration>

jooby/pom.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>jooby</artifactId>
+	<groupId>com.baeldung.jooby</groupId>
+	<version>1.0</version>
+	<name>jooby</name>
+
+	<parent>
+		<groupId>org.jooby</groupId>
+		<artifactId>modules</artifactId>
+		<version>1.1.3</version>
+	</parent>
+
+	<properties>
+		<jooby.version>1.1.3</jooby.version>
+		<application.class>com.baeldung.jooby.App</application.class>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.jooby</groupId>
+			<artifactId>jooby-netty</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.jooby</groupId>
+			<artifactId>jooby-jedis</artifactId>
+			<version>1.1.3</version>
+		</dependency>
+		<dependency>
+			<groupId>ch.qos.logback</groupId>
+			<artifactId>logback-classic</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>io.rest-assured</groupId>
+			<artifactId>rest-assured</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

jooby/public/form.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title>Insert title here</title>
+</head>
+<body>
+	<form enctype="application/x-www-form-urlencoded" action="/submitForm" method="post">
+	  <input name="id" />
+	  <input name="name" />
+	  <input name="email" />
+	  <input name="phone" />
+	  <input name="address" />
+	  <input type="submit" value="Submit"/>
+	</form>
+</body>
+</html>

jooby/public/welcome.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title>Insert title here</title>
+</head>
+<body>
+i m welcomed
+</body>
+</html>

jooby/src/etc/stork.yml

@@ -0,0 +1,41 @@
+# Name of application (make sure it has no spaces)
+name: "${project.artifactId}"
+
+# Display name of application (can have spaces)
+display_name: "${project.name}"
+
+# Type of launcher (CONSOLE or DAEMON)
+type: DAEMON
+
+# Java class to run
+main_class: "${application.class}"
+
+domain: "${project.groupId}"
+
+short_description: "${project.artifactId}"
+
+# Platform launchers to generate (WINDOWS, LINUX, MAC_OSX)
+# Linux launcher is suitable for Bourne shells (e.g. Linux/BSD)
+platforms: [ LINUX ]
+
+# Working directory for app
+#  RETAIN will not change the working directory
+#  APP_HOME will change the working directory to the home of the app
+#    (where it was intalled) before running the main class
+working_dir_mode: RETAIN
+
+# Minimum version of java required (system will be searched for acceptable jvm)
+min_java_version: "1.8"
+
+# Min/max fixed memory (measured in MB)
+min_java_memory: 512
+max_java_memory: 512
+
+# Min/max memory by percentage of system
+#min_java_memory_pct: 10
+#max_java_memory_pct: 20
+
+# Try to create a symbolic link to java executable in <app_home>/run with
+# the name of "<app_name>-java" so that commands like "ps" will make it
+# easier to find your app
+symlink_java: true

jooby/src/main/java/com/baeldung/jooby/App.java

@@ -0,0 +1,95 @@
+package com.baeldung.jooby;
+
+import org.jooby.Jooby;
+import org.jooby.Mutant;
+import org.jooby.Session;
+import org.jooby.jedis.Redis;
+import org.jooby.jedis.RedisSessionStore;
+
+import com.baeldung.jooby.bean.Employee;
+
+public class App extends Jooby {
+
+	{
+		port(8080);
+		securePort(8443);
+	}
+
+	{
+		get("/", () -> "Hello World!");
+	}
+
+	{
+		get("/user/{id}", req -> "Hello user : " + req.param("id").value());
+		get("/user/:id", req -> "Hello user: " + req.param("id").value());
+		get("/uid:{id}", req -> "Hello User with id : uid" + req.param("id").value());
+	}
+
+	{
+		onStart(() -> {
+			System.out.println("starting app");
+		});
+
+		onStop(() -> {
+			System.out.println("stopping app");
+		});
+
+		onStarted(() -> {
+			System.out.println("app started");
+		});
+	}
+
+	{
+		get("/login", () -> "Hello from Baeldung");
+	}
+
+	{
+		post("/save", req -> {
+			Mutant token = req.param("token");
+			return token.intValue();
+		});
+	}
+
+	{
+		{
+			assets("/employee", "form.html");
+		}
+
+		post("/submitForm", req -> {
+			Employee employee = req.params(Employee.class);
+			// TODO
+			return "empoyee data saved successfullly";
+		});
+	}
+
+	{
+		get("/filter", (req, resp, chain) -> {
+			// TODO
+			// resp.send(...);
+			chain.next(req, resp);
+		});
+		get("/filter", (req, resp) -> {
+			resp.send("filter response");
+		});
+	}
+
+	{
+//		cookieSession();
+		
+//		use(new Redis());
+//
+//		session(RedisSessionStore.class);
+
+		get("/session", req -> {
+			Session session = req.session();
+			session.set("token", "value");
+			return session.get("token").value();
+		});
+	}
+
+	public static void main(final String[] args) {
+
+		run(App::new, args);
+	}
+
+}

jooby/src/main/java/com/baeldung/jooby/bean/Employee.java

@@ -0,0 +1,16 @@
+package com.baeldung.jooby.bean;
+
+public class Employee {
+
+	String id;
+	String name;
+	String email;
+
+	public Employee(String id, String name, String email) {
+		super();
+		this.id = id;
+		this.name = name;
+		this.email = email;
+	}
+
+}

jooby/src/main/java/com/baeldung/jooby/mvc/GetController.java

@@ -0,0 +1,22 @@
+package com.baeldung.jooby.mvc;
+
+import org.jooby.Result;
+import org.jooby.Results;
+import org.jooby.mvc.GET;
+import org.jooby.mvc.Path;
+
+@Path("/hello")
+public class GetController {
+
+	@GET
+	public String hello() {
+		return "Hello Baeldung";
+	}
+
+	@GET
+	@Path("/home")
+	public Result home() {
+		return Results.html("welcome").put("model", new Object());
+	}
+
+}

jooby/src/main/java/com/baeldung/jooby/mvc/PostController.java

@@ -0,0 +1,14 @@
+package com.baeldung.jooby.mvc;
+
+import org.jooby.mvc.POST;
+import org.jooby.mvc.Path;
+
+@Path("/submit")
+public class PostController {
+
+	@POST
+	public String hello() {
+		return "Submit Baeldung";
+	}
+
+}

jooby/src/test/java/com/baeldung/jooby/AppTest.java

@@ -0,0 +1,29 @@
+package com.baeldung.jooby;
+
+import static io.restassured.RestAssured.get;
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertEquals;
+
+import org.jooby.test.JoobyRule;
+import org.jooby.test.MockRouter;
+import org.junit.ClassRule;
+import org.junit.Test;
+
+public class AppTest {
+
+	@ClassRule
+	public static JoobyRule app = new JoobyRule(new App());
+
+	@Test
+	public void given_defaultUrl_expect_fixedString() {
+		get("/").then().assertThat().body(equalTo("Hello World!")).statusCode(200)
+				.contentType("text/html;charset=UTF-8");
+	}
+
+	@Test
+	public void given_defaultUrl_with_mockrouter_expect_fixedString() throws Throwable {
+		String result = new MockRouter(new App()).get("/");
+		assertEquals("Hello World!", result);
+	}
+
+}

json-path/pom.xml

@@ -23,6 +23,6 @@
 
     <properties>
         <!-- json-path -->
-        <json-path.version>2.2.0</json-path.version>
+        <json-path.version>2.4.0</json-path.version>
     </properties>
 </project>

json-path/src/test/java/com/baeldung/jsonpath/introduction/OperationIntegrationTest.java

@@ -1,10 +1,10 @@
 package com.baeldung.jsonpath.introduction;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThat;
-import static org.hamcrest.CoreMatchers.containsString;
-import static org.hamcrest.CoreMatchers.not;
-
+import com.jayway.jsonpath.Criteria;
+import com.jayway.jsonpath.DocumentContext;
+import com.jayway.jsonpath.Filter;
+import com.jayway.jsonpath.JsonPath;
+import com.jayway.jsonpath.Predicate;
 import org.junit.Test;
 
 import java.io.InputStream;
@@ -12,15 +12,14 @@ import java.util.List;
 import java.util.Map;
 import java.util.Scanner;
 
-import com.jayway.jsonpath.Criteria;
-import com.jayway.jsonpath.DocumentContext;
-import com.jayway.jsonpath.Filter;
-import com.jayway.jsonpath.JsonPath;
-import com.jayway.jsonpath.Predicate;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.not;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
 
 public class OperationIntegrationTest {
-    InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_api.json");
-    String jsonDataSourceString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
+    private InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_api.json");
+    private String jsonDataSourceString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
 
     @Test
     public void givenJsonPathWithoutPredicates_whenReading_thenCorrect() {
@@ -46,12 +45,7 @@ public class OperationIntegrationTest {
 
     @Test
     public void givenJsonPathWithCustomizedPredicate_whenReading_thenCorrect() {
-        Predicate expensivePredicate = new Predicate() {
-            public boolean apply(PredicateContext context) {
-                String value = context.item(Map.class).get("price").toString();
-                return Float.valueOf(value) > 20.00;
-            }
-        };
+        Predicate expensivePredicate = context -> Float.valueOf(context.item(Map.class).get("price").toString()) > 20.00;
         List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?]", expensivePredicate);
         predicateUsageAssertionHelper(expensive);
     }