cleanup work

libraries/src/main/java/com/baeldung/bouncycastle/BouncyCastleCrypto.java

@@ -42,8 +42,7 @@ import org.bouncycastle.util.Store;
 
 public class BouncyCastleCrypto {
 
-    public static byte[] signData(byte[] data, final X509Certificate signingCertificate, final PrivateKey signingKey)
+    public static byte[] signData(byte[] data, final X509Certificate signingCertificate, final PrivateKey signingKey) throws CertificateEncodingException, OperatorCreationException, CMSException, IOException {
-            throws CertificateEncodingException, OperatorCreationException, CMSException, IOException {
         byte[] signedMessage = null;
         List<X509Certificate> certList = new ArrayList<X509Certificate>();
         CMSTypedData cmsData = new CMSProcessableByteArray(data);
@@ -51,17 +50,14 @@ public class BouncyCastleCrypto {
         Store certs = new JcaCertStore(certList);
         CMSSignedDataGenerator cmsGenerator = new CMSSignedDataGenerator();
         ContentSigner contentSigner = new JcaContentSignerBuilder("SHA256withRSA").build(signingKey);
-        cmsGenerator.addSignerInfoGenerator(
+        cmsGenerator.addSignerInfoGenerator(new JcaSignerInfoGeneratorBuilder(new JcaDigestCalculatorProviderBuilder().setProvider("BC").build()).build(contentSigner, signingCertificate));
-                new JcaSignerInfoGeneratorBuilder(new JcaDigestCalculatorProviderBuilder().setProvider("BC").build())
-                        .build(contentSigner, signingCertificate));
         cmsGenerator.addCertificates(certs);
         CMSSignedData cms = cmsGenerator.generate(cmsData, true);
         signedMessage = cms.getEncoded();
         return signedMessage;
     }
 
-    public static boolean verifSignData(final byte[] signedData)
+    public static boolean verifSignData(final byte[] signedData) throws CMSException, IOException, OperatorCreationException, CertificateException {
-            throws CMSException, IOException, OperatorCreationException, CertificateException {
         ByteArrayInputStream bIn = new ByteArrayInputStream(signedData);
         ASN1InputStream aIn = new ASN1InputStream(bIn);
         CMSSignedData s = new CMSSignedData(ContentInfo.getInstance(aIn.readObject()));
@@ -81,16 +77,14 @@ public class BouncyCastleCrypto {
         return true;
     }
 
-    public static byte[] encryptData(final byte[] data, X509Certificate encryptionCertificate)
+    public static byte[] encryptData(final byte[] data, X509Certificate encryptionCertificate) throws CertificateEncodingException, CMSException, IOException {
-            throws CertificateEncodingException, CMSException, IOException {
         byte[] encryptedData = null;
         if (null != data && null != encryptionCertificate) {
             CMSEnvelopedDataGenerator cmsEnvelopedDataGenerator = new CMSEnvelopedDataGenerator();
             JceKeyTransRecipientInfoGenerator jceKey = new JceKeyTransRecipientInfoGenerator(encryptionCertificate);
             cmsEnvelopedDataGenerator.addRecipientInfoGenerator(jceKey);
             CMSTypedData msg = new CMSProcessableByteArray(data);
-            OutputEncryptor encryptor = new JceCMSContentEncryptorBuilder(CMSAlgorithm.AES128_CBC).setProvider("BC")
+            OutputEncryptor encryptor = new JceCMSContentEncryptorBuilder(CMSAlgorithm.AES128_CBC).setProvider("BC").build();
-                    .build();
             CMSEnvelopedData cmsEnvelopedData = cmsEnvelopedDataGenerator.generate(msg, encryptor);
             encryptedData = cmsEnvelopedData.getEncoded();
         }

libraries/src/main/java/com/baeldung/bytebuddy/Bar.java

@@ -5,12 +5,17 @@ import net.bytebuddy.implementation.bind.annotation.BindingPriority;
 public class Bar {
 
     @BindingPriority(3)
-    public static String sayHelloBar() { return "Holla in Bar!"; }
+    public static String sayHelloBar() {
+        return "Holla in Bar!";
+    }
 
     @BindingPriority(2)
-    public static String sayBar() { return "bar"; }
+    public static String sayBar() {
-
+        return "bar";
-    public String bar() { return Bar.class.getSimpleName() + " - Bar"; }
+    }
 
+    public String bar() {
+        return Bar.class.getSimpleName() + " - Bar";
+    }
 
 }

libraries/src/main/java/com/baeldung/bytebuddy/Foo.java

@@ -2,6 +2,8 @@ package com.baeldung.bytebuddy;
 
 public class Foo {
 
-    public String sayHelloFoo() { return "Hello in Foo!"; }
+    public String sayHelloFoo() {
+        return "Hello in Foo!";
+    }
 
 }

libraries/src/main/java/com/baeldung/caffeine/DataObject.java

@@ -19,9 +19,7 @@ final class DataObject {
 
     @Override
     public String toString() {
-        return "DataObject{" +
+        return "DataObject{" + "data='" + data + '\'' + '}';
-                "data='" + data + '\'' +
-                '}';
     }
 
     public static DataObject get(String data) {

libraries/src/main/java/com/baeldung/chronicle/queue/ChronicleQueue.java

@@ -7,9 +7,7 @@ import net.openhft.chronicle.ExcerptAppender;
 
 public class ChronicleQueue {
 
-    static void writeToQueue(
+    static void writeToQueue(Chronicle chronicle, String stringValue, int intValue, long longValue, double doubleValue) throws IOException {
-      Chronicle chronicle, String stringValue, int intValue, long longValue, double doubleValue) 
-        throws IOException {
         ExcerptAppender appender = chronicle.createAppender();
         appender.startExcerpt();
         appender.writeUTF(stringValue);

libraries/src/main/java/com/baeldung/commons/beanutils/CourseService.java

@@ -8,33 +8,27 @@ import org.apache.commons.beanutils.PropertyUtils;
 
 public class CourseService {
 
-    public static void setValues(Course course, String name, List<String> codes) 
+    public static void setValues(Course course, String name, List<String> codes) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
-        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
         // Setting the simple properties
         PropertyUtils.setSimpleProperty(course, "name", name);
         PropertyUtils.setSimpleProperty(course, "codes", codes);
     }
 
-    public static void setIndexedValue(Course course, int codeIndex, String code)
+    public static void setIndexedValue(Course course, int codeIndex, String code) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
-        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
         // Setting the indexed properties
         PropertyUtils.setIndexedProperty(course, "codes[" + codeIndex + "]", code);
     }
 
-    public static void setMappedValue(Course course, String enrollId, Student student)
+    public static void setMappedValue(Course course, String enrollId, Student student) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
-        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
         // Setting the mapped properties
         PropertyUtils.setMappedProperty(course, "enrolledStudent(" + enrollId + ")", student);
     }
 
-    public static String getNestedValue(Course course, String enrollId, String nestedPropertyName)
+    public static String getNestedValue(Course course, String enrollId, String nestedPropertyName) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
-        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
+        return (String) PropertyUtils.getNestedProperty(course, "enrolledStudent(" + enrollId + ")." + nestedPropertyName);
-        return (String) PropertyUtils.getNestedProperty(
-                 course, "enrolledStudent(" + enrollId + ")." + nestedPropertyName);
     }
 
-    public static void copyProperties(Course course, CourseEntity courseEntity) 
+    public static void copyProperties(Course course, CourseEntity courseEntity) throws IllegalAccessException, InvocationTargetException {
-        throws IllegalAccessException, InvocationTargetException {
         BeanUtils.copyProperties(course, courseEntity);
     }
 }

libraries/src/main/java/com/baeldung/commons/dbutils/Email.java

@@ -21,7 +21,6 @@ public class Email {
         this.employeeId = employeeId;
     }
 
-
     public String getAddress() {
         return address;
     }

libraries/src/main/java/com/baeldung/commons/lang3/BuilderMethods.java

@@ -26,9 +26,7 @@ public class BuilderMethods {
 
     @Override
     public int hashCode() {
-        return new HashCodeBuilder().append(this.intValue)
+        return new HashCodeBuilder().append(this.intValue).append(this.strSample).toHashCode();
-            .append(this.strSample)
-            .toHashCode();
     }
 
     @Override
@@ -41,16 +39,12 @@ public class BuilderMethods {
         }
         final BuilderMethods otherObject = (BuilderMethods) obj;
 
-        return new EqualsBuilder().append(this.intValue, otherObject.intValue)
+        return new EqualsBuilder().append(this.intValue, otherObject.intValue).append(this.strSample, otherObject.strSample).isEquals();
-            .append(this.strSample, otherObject.strSample)
-            .isEquals();
     }
 
     @Override
     public String toString() {
-        return new ToStringBuilder(this).append("INTVALUE", this.intValue)
+        return new ToStringBuilder(this).append("INTVALUE", this.intValue).append("STRINGVALUE", this.strSample).toString();
-            .append("STRINGVALUE", this.strSample)
-            .toString();
     }
 
     public static void main(final String[] arguments) {

libraries/src/main/java/com/baeldung/docx/Docx4jExample.java

@@ -53,16 +53,12 @@ class Docx4jExample {
 
         File image = new File(imagePath);
         byte[] fileContent = Files.readAllBytes(image.toPath());
-        BinaryPartAbstractImage imagePart = BinaryPartAbstractImage
+        BinaryPartAbstractImage imagePart = BinaryPartAbstractImage.createImagePart(wordPackage, fileContent);
-          .createImagePart(wordPackage, fileContent);
+        Inline inline = imagePart.createImageInline("Baeldung Image", "Alt Text", 1, 2, false);
-        Inline inline = imagePart.createImageInline(
-          "Baeldung Image", "Alt Text", 1, 2, false);
         P Imageparagraph = addImageToParagraph(inline);
         mainDocumentPart.getContent().add(Imageparagraph);
 
-        int writableWidthTwips = wordPackage.getDocumentModel()
+        int writableWidthTwips = wordPackage.getDocumentModel().getSections().get(0).getPageDimensions().getWritableWidthTwips();
-          .getSections().get(0).getPageDimensions()
-          .getWritableWidthTwips();
         int columnNumber = 3;
         Tbl tbl = TblFactory.createTable(3, 3, writableWidthTwips / columnNumber);
         List<Object> rows = tbl.getContent();

libraries/src/main/java/com/baeldung/fj/FunctionalJavaIOMain.java

@@ -21,8 +21,7 @@ public class FunctionalJavaIOMain {
 
         F<String, IO<Unit>> printLetters = i -> printLetters(i);
 
-        IO<Unit> lowerCase = IOFunctions
+        IO<Unit> lowerCase = IOFunctions.stdoutPrintln("What's your first Name ?");
-          .stdoutPrintln("What's your first Name ?");
 
         IO<Unit> input = IOFunctions.stdoutPrint("First Name: ");
 
@@ -32,14 +31,11 @@ public class FunctionalJavaIOMain {
 
         F<String, String> toUpperCase = i -> i.toUpperCase();
 
-        F<String, IO<Unit>> transformInput = F1Functions
+        F<String, IO<Unit>> transformInput = F1Functions.<String, IO<Unit>, String> o(printLetters).f(toUpperCase);
-          .<String, IO<Unit>, String> o(printLetters).f(toUpperCase);
 
-        IO<Unit> readAndPrintResult = IOFunctions.bind(readInput,
+        IO<Unit> readAndPrintResult = IOFunctions.bind(readInput, transformInput);
-          transformInput);
 
-        IO<Unit> program = IOFunctions.bind(userInput,
+        IO<Unit> program = IOFunctions.bind(userInput, nothing -> readAndPrintResult);
-          nothing -> readAndPrintResult);
 
         IOFunctions.toSafe(program).run();
 

libraries/src/main/java/com/baeldung/flink/LineSplitter.java

@@ -13,8 +13,6 @@ public class LineSplitter implements FlatMapFunction<String, Tuple2<String, Inte
     public void flatMap(String value, Collector<Tuple2<String, Integer>> out) {
 
         String[] tokens = value.toLowerCase().split("\\W+");
-        Stream.of(tokens)
+        Stream.of(tokens).filter(t -> t.length() > 0).forEach(token -> out.collect(new Tuple2<>(token, 1)));
-                .filter(t -> t.length() > 0)
-                .forEach(token -> out.collect(new Tuple2<>(token, 1)));
     }
 }

libraries/src/main/java/com/baeldung/flink/WordCount.java

@@ -12,9 +12,7 @@ public class WordCount {
     public static DataSet<Tuple2<String, Integer>> startWordCount(ExecutionEnvironment env, List<String> lines) throws Exception {
         DataSet<String> text = env.fromCollection(lines);
 
-        return text.flatMap(new LineSplitter())
+        return text.flatMap(new LineSplitter()).groupBy(0).aggregate(Aggregations.SUM, 1);
-                .groupBy(0)
-                .aggregate(Aggregations.SUM, 1);
 
     }
 }

libraries/src/main/java/com/baeldung/google/sheets/GoogleAuthorizeUtil.java

@@ -20,21 +20,13 @@ import com.google.api.services.sheets.v4.SheetsScopes;
 public class GoogleAuthorizeUtil {
     public static Credential authorize() throws IOException, GeneralSecurityException {
         InputStream in = GoogleAuthorizeUtil.class.getResourceAsStream("/google-sheets-client-secret.json");
-        GoogleClientSecrets clientSecrets = GoogleClientSecrets
+        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JacksonFactory.getDefaultInstance(), new InputStreamReader(in));
-          .load(JacksonFactory.getDefaultInstance(), new InputStreamReader(in));
 
         List<String> scopes = Arrays.asList(SheetsScopes.SPREADSHEETS);
 
-        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow
+        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(GoogleNetHttpTransport.newTrustedTransport(), JacksonFactory.getDefaultInstance(), clientSecrets, scopes).setDataStoreFactory(new MemoryDataStoreFactory())
-          .Builder(GoogleNetHttpTransport.newTrustedTransport(), 
+                .setAccessType("offline").build();
-                   JacksonFactory.getDefaultInstance(),
+        Credential credential = new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
-                   clientSecrets,
-                   scopes)
-          .setDataStoreFactory(new MemoryDataStoreFactory())
-          .setAccessType("offline")
-          .build();
-        Credential credential = new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver())
-          .authorize("user");
 
         return credential;
     }

libraries/src/main/java/com/baeldung/google/sheets/SheetsServiceUtil.java

@@ -14,10 +14,7 @@ public class SheetsServiceUtil {
 
     public static Sheets getSheetsService() throws IOException, GeneralSecurityException {
         Credential credential = GoogleAuthorizeUtil.authorize();
-        return new Sheets.Builder(GoogleNetHttpTransport.newTrustedTransport(), 
+        return new Sheets.Builder(GoogleNetHttpTransport.newTrustedTransport(), JacksonFactory.getDefaultInstance(), credential).setApplicationName(APPLICATION_NAME).build();
-                                  JacksonFactory.getDefaultInstance(), credential)
-          .setApplicationName(APPLICATION_NAME)
-          .build();
     }
 
 }

libraries/src/main/java/com/baeldung/googlehttpclientguide/GitHubExample.java

@@ -26,24 +26,17 @@ public class GitHubExample {
     // static final JsonFactory JSON_FACTORY = new GsonFactory();
 
     private static void run() throws Exception {
-        HttpRequestFactory requestFactory
+        HttpRequestFactory requestFactory = HTTP_TRANSPORT.createRequestFactory((HttpRequest request) -> {
-                = HTTP_TRANSPORT.createRequestFactory(
-                        (HttpRequest request) -> {
             request.setParser(new JsonObjectParser(JSON_FACTORY));
         });
         GitHubUrl url = new GitHubUrl("https://api.github.com/users");
         url.per_page = 10;
         url.page = 1;
         HttpRequest request = requestFactory.buildGetRequest(url);
-        ExponentialBackOff backoff = new ExponentialBackOff.Builder()
+        ExponentialBackOff backoff = new ExponentialBackOff.Builder().setInitialIntervalMillis(500).setMaxElapsedTimeMillis(900000).setMaxIntervalMillis(6000).setMultiplier(1.5).setRandomizationFactor(0.5).build();
-                .setInitialIntervalMillis(500)
-                .setMaxElapsedTimeMillis(900000)
-                .setMaxIntervalMillis(6000)
-                .setMultiplier(1.5)
-                .setRandomizationFactor(0.5)
-                .build();
         request.setUnsuccessfulResponseHandler(new HttpBackOffUnsuccessfulResponseHandler(backoff));
-        Type type = new TypeToken<List<User>>() {}.getType();
+        Type type = new TypeToken<List<User>>() {
+        }.getType();
         List<User> users = (List<User>) request.execute().parseAs(type);
         System.out.println(users);
         url.appendRawPath("/eugenp");

libraries/src/main/java/com/baeldung/googlehttpclientguide/User.java

@@ -73,5 +73,4 @@ public class User extends GenericJson {
         return "User{" + "login=" + login + ", id=" + id + ", url=" + url + ", company=" + company + ", blog=" + blog + ", email=" + email + '}';
     }
 
-    
 }

libraries/src/main/java/com/baeldung/hikaricp/DataSource.java

@@ -36,7 +36,8 @@ public class DataSource {
         // ds.setPassword("");
     }
 
-    private DataSource() {}
+    private DataSource() {
+    }
 
     public static Connection getConnection() throws SQLException {
         return ds.getConnection();

libraries/src/main/java/com/baeldung/hikaricp/HikariCPDemo.java

@@ -12,9 +12,7 @@ public class HikariCPDemo {
     public static List<Employee> fetchData() {
         final String SQL_QUERY = "select * from emp";
         List<Employee> employees = null;
-        try (Connection con = DataSource.getConnection();
+        try (Connection con = DataSource.getConnection(); PreparedStatement pst = con.prepareStatement(SQL_QUERY); ResultSet rs = pst.executeQuery();) {
-                PreparedStatement pst = con.prepareStatement(SQL_QUERY);
-                ResultSet rs = pst.executeQuery();) {
             employees = new ArrayList<Employee>();
             Employee employee;
             while (rs.next()) {

libraries/src/main/java/com/baeldung/infinispan/CacheConfiguration.java

@@ -43,8 +43,7 @@ public class CacheConfiguration {
         return this.buildCache(PASSIVATING_HELLO_WORLD_CACHE, cacheManager, listener, passivatingConfiguration());
     }
 
-    private <K, V> Cache<K, V> buildCache(String cacheName, DefaultCacheManager cacheManager,
+    private <K, V> Cache<K, V> buildCache(String cacheName, DefaultCacheManager cacheManager, CacheListener listener, Configuration configuration) {
-      CacheListener listener, Configuration configuration) {
 
         cacheManager.defineConfiguration(cacheName, configuration);
         Cache<K, V> cache = cacheManager.getCache(cacheName);
@@ -53,32 +52,19 @@ public class CacheConfiguration {
     }
 
     private Configuration expiringConfiguration() {
-        return new ConfigurationBuilder().expiration().lifespan(1, TimeUnit.SECONDS)
+        return new ConfigurationBuilder().expiration().lifespan(1, TimeUnit.SECONDS).build();
-          .build();
     }
 
     private Configuration evictingConfiguration() {
-        return new ConfigurationBuilder()
+        return new ConfigurationBuilder().memory().evictionType(EvictionType.COUNT).size(1).build();
-          .memory().evictionType(EvictionType.COUNT).size(1)
-          .build();
     }
 
     private Configuration passivatingConfiguration() {
-        return new ConfigurationBuilder()
+        return new ConfigurationBuilder().memory().evictionType(EvictionType.COUNT).size(1).persistence().passivation(true).addSingleFileStore().purgeOnStartup(true).location(System.getProperty("java.io.tmpdir")).build();
-          .memory().evictionType(EvictionType.COUNT).size(1)
-          .persistence()
-          .passivation(true)
-          .addSingleFileStore()
-          .purgeOnStartup(true)
-          .location(System.getProperty("java.io.tmpdir"))
-          .build();
     }
 
     private Configuration transactionalConfiguration() {
-        return new ConfigurationBuilder()
+        return new ConfigurationBuilder().transaction().transactionMode(TransactionMode.TRANSACTIONAL).lockingMode(LockingMode.PESSIMISTIC).build();
-          .transaction().transactionMode(TransactionMode.TRANSACTIONAL)
-          .lockingMode(LockingMode.PESSIMISTIC)
-          .build();
     }
 
 }

libraries/src/main/java/com/baeldung/infinispan/service/HelloWorldService.java

@@ -15,10 +15,7 @@ public class HelloWorldService {
     private final Cache<String, String> evictingHelloWorldCache;
     private final Cache<String, String> passivatingHelloWorldCache;
 
-    public HelloWorldService(HelloWorldRepository repository, CacheListener listener,
+    public HelloWorldService(HelloWorldRepository repository, CacheListener listener, Cache<String, String> simpleHelloWorldCache, Cache<String, String> expiringHelloWorldCache, Cache<String, String> evictingHelloWorldCache,
-      Cache<String, String> simpleHelloWorldCache,
-      Cache<String, String> expiringHelloWorldCache,
-      Cache<String, String> evictingHelloWorldCache,
             Cache<String, String> passivatingHelloWorldCache) {
 
         this.repository = repository;

libraries/src/main/java/com/baeldung/infinispan/service/TransactionalService.java

@@ -28,8 +28,7 @@ public class TransactionalService {
             watch.start();
             transactionalCache.put(KEY, howManyVisits);
             watch.stop();
-            System.out.println("I was able to set HowManyVisits to " + howManyVisits +
+            System.out.println("I was able to set HowManyVisits to " + howManyVisits + " after waiting " + watch.getTotalTimeSeconds() + " seconds");
-              " after waiting " + watch.getTotalTimeSeconds() + " seconds");
 
             tm.commit();
             return howManyVisits;
@@ -44,8 +43,7 @@ public class TransactionalService {
             TransactionManager tm = transactionalCache.getAdvancedCache().getTransactionManager();
             tm.begin();
             transactionalCache.put(KEY, 1000);
-            System.out.println("HowManyVisits should now be 1000, " +
+            System.out.println("HowManyVisits should now be 1000, " + "but we are holding the transaction");
-              "but we are holding the transaction");
             Thread.sleep(1000L);
             tm.rollback();
             System.out.println("The slow batch suffered a rollback");

libraries/src/main/java/com/baeldung/javasisst/Point.java

@@ -1,6 +1,5 @@
 package com.baeldung.javasisst;
 
-
 public class Point {
     public int x = 0;
     public int y = 0;

libraries/src/main/java/com/baeldung/javasisst/ThreeDimensionalPoint.java

@@ -1,6 +1,5 @@
 package com.baeldung.javasisst;
 
-
 public class ThreeDimensionalPoint {
     public int x = 0;
     public int y = 0;

libraries/src/main/java/com/baeldung/javers/Address.java

@@ -1,6 +1,5 @@
 package com.baeldung.javers;
 
-
 public class Address {
     private String country;
 

libraries/src/main/java/com/baeldung/javers/PersonWithAddress.java

@@ -1,6 +1,5 @@
 package com.baeldung.javers;
 
-
 import java.util.List;
 
 public class PersonWithAddress {

libraries/src/main/java/com/baeldung/jdeffered/PipeDemo.java

@@ -19,14 +19,11 @@ class PipeDemo {
 
         p.then((DonePipe<Integer, Integer, Exception, Void>) result -> {
             if (result < 90) {
-                return new DeferredObject<Integer, Exception, Void>()
+                return new DeferredObject<Integer, Exception, Void>().resolve(result);
-                  .resolve(result);
             } else {
-                return new DeferredObject<Integer, Exception, Void>()
+                return new DeferredObject<Integer, Exception, Void>().reject(new Exception("Unacceptable value"));
-                  .reject(new Exception("Unacceptable value"));
             }
-        }).done(r -> status = Result.SUCCESS)
+        }).done(r -> status = Result.SUCCESS).fail(r -> status = Result.FAILURE);
-          .fail(r -> status = Result.FAILURE);
 
         d.resolve(num);
 

libraries/src/main/java/com/baeldung/jdeffered/PromiseDemo.java

@@ -11,10 +11,7 @@ class PromiseDemo {
         Deferred<String, String, String> deferred = new DeferredObject<>();
         Promise<String, String, String> promise = deferred.promise();
 
-        promise.done(result -> System.out.println("Job done"))
+        promise.done(result -> System.out.println("Job done")).fail(rejection -> System.out.println("Job fail")).progress(progress -> System.out.println("Job is in progress")).always((state, result, rejection) -> System.out.println("Job execution started"));
-          .fail(rejection -> System.out.println("Job fail"))
-          .progress(progress -> System.out.println("Job is in progress"))
-          .always((state, result, rejection) -> System.out.println("Job execution started"));
 
         deferred.resolve(jobName);
         // deferred.notify("");

libraries/src/main/java/com/baeldung/jdeffered/ThreadSafeDemo.java

@@ -12,9 +12,7 @@ public class ThreadSafeDemo {
         DeferredManager dm = new DefaultDeferredManager();
         Deferred<String, String, String> deferred = new DeferredObject<>();
         Promise<String, String, String> p1 = deferred.promise();
-        Promise<String, String, String> p = dm.when(p1)
+        Promise<String, String, String> p = dm.when(p1).done(r -> System.out.println("done")).fail(r -> System.out.println("fail"));
-          .done(r -> System.out.println("done"))
-          .fail(r -> System.out.println("fail"));
 
         synchronized (p) {
             while (p.isPending()) {

libraries/src/main/java/com/baeldung/jdeffered/manager/DeferredManagerWithExecutorDemo.java

@@ -16,9 +16,7 @@ class DeferredManagerWithExecutorDemo {
         Deferred<String, String, String> deferred = new DeferredObject<>();
         DeferredManager dm = new DefaultDeferredManager(executor);
         Promise<String, String, String> p1 = deferred.promise(), p2 = deferred.promise(), p3 = deferred.promise();
-        dm.when(p1, p2, p3)
+        dm.when(p1, p2, p3).done(r -> System.out.println("done")).fail(r -> System.out.println("fail"));
-          .done(r -> System.out.println("done"))
-          .fail(r -> System.out.println("fail"));
         deferred.resolve("done");
     }
 }

libraries/src/main/java/com/baeldung/jdeffered/manager/SimpleDeferredManagerDemo.java

@@ -7,8 +7,6 @@ class SimpleDeferredManagerDemo {
 
     public static void initiate() {
         DeferredManager dm = new DefaultDeferredManager();
-        dm.when(() -> 1)
+        dm.when(() -> 1).done(r -> System.out.println("done")).fail(Throwable::printStackTrace);
-          .done(r -> System.out.println("done"))
-          .fail(Throwable::printStackTrace);
     }
 }

libraries/src/main/java/com/baeldung/jdo/query/MyApp.java

@@ -53,17 +53,14 @@ public class MyApp {
 
     public static void queryUsingJDOQL() {
 
-        Query query = pm.newQuery("SELECT FROM com.baeldung.jdo.query.ProductItem "
+        Query query = pm.newQuery("SELECT FROM com.baeldung.jdo.query.ProductItem " + "WHERE price < threshold PARAMETERS double threshold");
-                + "WHERE price < threshold PARAMETERS double threshold");
         List<ProductItem> explicitParamResults = (List<ProductItem>) query.execute(10);
 
-        query = pm.newQuery("SELECT FROM "
+        query = pm.newQuery("SELECT FROM " + "com.baeldung.jdo.query.ProductItem WHERE price < :threshold");
-                + "com.baeldung.jdo.query.ProductItem WHERE price < :threshold");
         query.setParameters("double threshold");
         List<ProductItem> explicitParamResults2 = (List<ProductItem>) query.execute(10);
 
-        query = pm.newQuery("SELECT FROM "
+        query = pm.newQuery("SELECT FROM " + "com.baeldung.jdo.query.ProductItem WHERE price < :threshold");
-                + "com.baeldung.jdo.query.ProductItem WHERE price < :threshold");
         List<ProductItem> implicitParamResults = (List<ProductItem>) query.execute(10);
 
     }
@@ -79,8 +76,7 @@ public class MyApp {
 
     public static void queryUsingSQL() {
 
-        Query query = pm.newQuery("javax.jdo.query.SQL","select * from "
+        Query query = pm.newQuery("javax.jdo.query.SQL", "select * from " + "product_item where price < ? and status = ?");
-                + "product_item where price < ? and status = ?");
         query.setClass(ProductItem.class);
         query.setParameters(10, "InStock");
         List<ProductItem> results = query.executeList();
@@ -88,16 +84,13 @@ public class MyApp {
     }
 
     public static void queryUsingJPQL() {
-        Query query = pm.newQuery("JPQL","select i from "
+        Query query = pm.newQuery("JPQL", "select i from " + "com.baeldung.jdo.query.ProductItem i where i.price < 10" + " and i.status = 'InStock'");
-                + "com.baeldung.jdo.query.ProductItem i where i.price < 10"
-                + " and i.status = 'InStock'");
         List<ProductItem> results = (List<ProductItem>) query.execute();
 
     }
 
     public static void namedQuery() {
-        Query<ProductItem> query = pm.newNamedQuery(
+        Query<ProductItem> query = pm.newNamedQuery(ProductItem.class, "PriceBelow10");
-                ProductItem.class, "PriceBelow10");
         List<ProductItem> results = query.executeList();
 
     }

libraries/src/main/java/com/baeldung/jdo/query/ProductItem.java

@@ -28,7 +28,6 @@ public class ProductItem {
         this.price = price;
     }
 
-
     public int getId() {
         return id;
     }
@@ -40,18 +39,23 @@ public class ProductItem {
     public String getName() {
         return name;
     }
+
     public void setName(String name) {
         this.name = name;
     }
+
     public String getDescription() {
         return description;
     }
+
     public void setDescription(String description) {
         this.description = description;
     }
+
     public double getPrice() {
         return price;
     }
+
     public void setPrice(double price) {
         this.price = price;
     }
@@ -64,5 +68,4 @@ public class ProductItem {
         this.status = status;
     }
 
-
 }

libraries/src/main/java/com/baeldung/jdo/xml/AnnotadedPerson.java

@@ -12,10 +12,7 @@ import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
 
-@PersistenceCapable(
+@PersistenceCapable(schema = "/myproduct/people", table = "person")
-        schema="/myproduct/people",
-        table="person"
-        )
 public class AnnotadedPerson {
     @XmlAttribute
     private long personNum;
@@ -29,7 +26,6 @@ public class AnnotadedPerson {
     @Element(types = String.class)
     private List phoneNumbers = new ArrayList();
 
-
     public AnnotadedPerson(long personNum, String firstName, String lastName) {
         super();
         this.personNum = personNum;

libraries/src/main/java/com/baeldung/jdo/xml/Person.java

@@ -12,7 +12,6 @@ import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
 
-
 @PersistenceCapable
 public class Person {
     private long personNum;

libraries/src/main/java/com/baeldung/jdo/xml/Product.java

@@ -26,7 +26,6 @@ public class Product {
         this.price = price;
     }
 
- 
     public String getId() {
         return id;
     }
@@ -38,21 +37,25 @@ public class Product {
     public String getName() {
         return name;
     }
+
     public void setName(String name) {
         this.name = name;
     }
+
     public String getDescription() {
         return description;
     }
+
     public void setDescription(String description) {
         this.description = description;
     }
+
     public double getPrice() {
         return price;
     }
+
     public void setPrice(double price) {
         this.price = price;
     }
 
-    
 }

libraries/src/main/java/com/baeldung/jetty/BlockingServlet.java

@@ -14,4 +14,3 @@ public class BlockingServlet extends HttpServlet {
         response.getWriter().println("{ \"status\": \"ok\"}");
     }
 }
-

libraries/src/main/java/com/baeldung/jetty/JettyServerFactory.java

@@ -58,8 +58,7 @@ public class JettyServerFactory {
     public static Server createWebAppServer() {
         // Adds an handler to a server and returns it.
         Server server = createBaseServer();
-		String webAppFolderPath = JettyServerFactory.class.getClassLoader().getResource("jetty-embedded-demo-app.war")
+        String webAppFolderPath = JettyServerFactory.class.getClassLoader().getResource("jetty-embedded-demo-app.war").getPath();
-				.getPath();
         Handler webAppHandler = new WebAppContext(webAppFolderPath, APP_PATH);
         server.setHandler(webAppHandler);
 
@@ -78,8 +77,7 @@ public class JettyServerFactory {
         // Creates the handlers and adds them to the server.
         HandlerCollection handlers = new HandlerCollection();
 
-		String webAppFolderPath = JettyServerFactory.class.getClassLoader().getResource("jetty-embedded-demo-app.war")
+        String webAppFolderPath = JettyServerFactory.class.getClassLoader().getResource("jetty-embedded-demo-app.war").getPath();
-				.getPath();
         Handler customRequestHandler = new WebAppContext(webAppFolderPath, APP_PATH);
         handlers.addHandler(customRequestHandler);
 

libraries/src/main/java/com/baeldung/jetty/LoggingRequestHandler.java

@@ -150,8 +150,7 @@ public class LoggingRequestHandler implements Handler {
      * javax.servlet.http.HttpServletResponse)
      */
     @Override
-	public void handle(String arg0, Request arg1, HttpServletRequest arg2, HttpServletResponse arg3)
+    public void handle(String arg0, Request arg1, HttpServletRequest arg2, HttpServletResponse arg3) throws IOException, ServletException {
-			throws IOException, ServletException {
         LOG.info("Received a new request");
     }
 

libraries/src/main/java/com/baeldung/netty/ChannelHandlerB.java

@@ -5,7 +5,6 @@ import io.netty.channel.ChannelInboundHandlerAdapter;
 
 import java.util.logging.Logger;
 
-
 public class ChannelHandlerB extends ChannelInboundHandlerAdapter {
 
     private Logger logger = Logger.getLogger(getClass().getName());

libraries/src/main/java/com/baeldung/netty/NettyServerB.java

@@ -24,15 +24,11 @@ public class NettyServerB  {
 
         try {
             ServerBootstrap b = new ServerBootstrap();
-            b.group(bossGroup, workerGroup)
+            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).childHandler(new ChannelInitializer<SocketChannel>() {
-                .channel(NioServerSocketChannel.class)
-                .childHandler(new ChannelInitializer<SocketChannel>() {
                 public void initChannel(SocketChannel ch) throws Exception {
                     ch.pipeline().addLast(new ChannelHandlerA(), new ChannelHandlerB());
                 }
-                })
+            }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
-                .option(ChannelOption.SO_BACKLOG, 128)
-                .childOption(ChannelOption.SO_KEEPALIVE, true);
             ChannelFuture f = b.bind(port).sync(); // (7)
             f.channel().closeFuture().sync();
         } finally {

libraries/src/main/java/com/baeldung/netty/RequestData.java

@@ -22,9 +22,6 @@ public class RequestData {
 
     @Override
     public String toString() {
-        return "RequestData{" +
+        return "RequestData{" + "intValue=" + intValue + ", stringValue='" + stringValue + '\'' + '}';
-          "intValue=" + intValue +
-          ", stringValue='" + stringValue + '\'' +
-          '}';
     }
 }

libraries/src/main/java/com/baeldung/netty/ResponseData.java

@@ -13,8 +13,6 @@ public class ResponseData {
 
     @Override
     public String toString() {
-        return "ResponseData{" +
+        return "ResponseData{" + "intValue=" + intValue + '}';
-                "intValue=" + intValue +
-                '}';
     }
 }

libraries/src/main/java/com/baeldung/noexception/CustomExceptionHandler.java

@@ -11,10 +11,7 @@ public class CustomExceptionHandler extends ExceptionHandler {
     @Override
     public boolean handle(Throwable throwable) {
 
-        if (throwable.getClass()
+        if (throwable.getClass().isAssignableFrom(RuntimeException.class) || throwable.getClass().isAssignableFrom(Error.class)) {
-            .isAssignableFrom(RuntimeException.class)
-            || throwable.getClass()
-                .isAssignableFrom(Error.class)) {
             return false;
         } else {
             logger.error("Caught Exception ", throwable);

libraries/src/main/java/com/baeldung/protonpack/StreamUtilsExample.java

@@ -20,18 +20,14 @@ public class StreamUtilsExample {
 
     public void zipAStreamWithIndex() {
         Stream<String> source = Stream.of("Foo", "Bar", "Baz");
-        List<Indexed<String>> zipped = StreamUtils
+        List<Indexed<String>> zipped = StreamUtils.zipWithIndex(source).collect(Collectors.toList());
-          .zipWithIndex(source)
-          .collect(Collectors.toList());
     }
 
     public void zipAPairOfStreams() {
         Stream<String> streamA = Stream.of("A", "B", "C");
         Stream<String> streamB = Stream.of("Apple", "Banana", "Carrot");
 
-        List<String> zipped = StreamUtils
+        List<String> zipped = StreamUtils.zip(streamA, streamB, (a, b) -> a + " is for " + b).collect(Collectors.toList());
-          .zip(streamA, streamB, (a, b) -> a + " is for " + b)
-          .collect(Collectors.toList());
     }
 
     public void zipThreeStreams() {
@@ -39,9 +35,7 @@ public class StreamUtilsExample {
         Stream<String> streamB = Stream.of("aggravating", "banausic", "complaisant");
         Stream<String> streamC = Stream.of("Apple", "Banana", "Carrot");
 
-        List<String> zipped = StreamUtils
+        List<String> zipped = StreamUtils.zip(streamA, streamB, streamC, (a, b, c) -> a + " is for " + b + " " + c).collect(Collectors.toList());
-          .zip(streamA, streamB, streamC, (a, b, c) -> a + " is for " + b + " " + c)
-          .collect(Collectors.toList());
     }
 
     public void mergeThreeStreams() {
@@ -79,24 +73,16 @@ public class StreamUtilsExample {
     public void windowedStream() {
         Stream<Integer> integerStream = Stream.of(1, 2, 3, 4, 5);
 
-        List<List<Integer>> windows = StreamUtils
+        List<List<Integer>> windows = StreamUtils.windowed(integerStream, 2).collect(toList());
-          .windowed(integerStream, 2)
+        List<List<Integer>> windowsWithSkipIndex = StreamUtils.windowed(integerStream, 3, 2).collect(toList());
-          .collect(toList());
+        List<List<Integer>> windowsWithSkipIndexAndAllowLowerSize = StreamUtils.windowed(integerStream, 2, 2, true).collect(toList());
-        List<List<Integer>> windowsWithSkipIndex = StreamUtils
-          .windowed(integerStream, 3, 2)
-          .collect(toList());
-        List<List<Integer>> windowsWithSkipIndexAndAllowLowerSize = StreamUtils
-          .windowed(integerStream, 2, 2, true)
-          .collect(toList());
 
     }
 
     public void groupRunsStreams() {
         Stream<Integer> integerStream = Stream.of(1, 1, 2, 2, 3, 4, 5);
 
-        List<List<Integer>> runs = StreamUtils
+        List<List<Integer>> runs = StreamUtils.groupRuns(integerStream).collect(toList());
-          .groupRuns(integerStream)
-          .collect(toList());
     }
 
     public void aggreagateOnBiElementPredicate() {

libraries/src/main/java/com/baeldung/quartz/QuartzExample.java

@@ -19,45 +19,17 @@ public class QuartzExample {
 
             Scheduler sched = schedFact.getScheduler();
 
-            JobDetail job = JobBuilder.newJob(SimpleJob.class)
+            JobDetail job = JobBuilder.newJob(SimpleJob.class).withIdentity("myJob", "group1").usingJobData("jobSays", "Hello World!").usingJobData("myFloatValue", 3.141f).build();
-              .withIdentity("myJob", "group1")
-              .usingJobData("jobSays", "Hello World!")
-              .usingJobData("myFloatValue", 3.141f)
-              .build();
 
-            Trigger trigger = TriggerBuilder.newTrigger()
+            Trigger trigger = TriggerBuilder.newTrigger().withIdentity("myTrigger", "group1").startNow().withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(40).repeatForever()).build();
-              .withIdentity("myTrigger", "group1")
-              .startNow()
-              .withSchedule(SimpleScheduleBuilder.simpleSchedule()
-                .withIntervalInSeconds(40)
-                .repeatForever())
-              .build();
 
-            JobDetail jobA = JobBuilder.newJob(JobA.class)
+            JobDetail jobA = JobBuilder.newJob(JobA.class).withIdentity("jobA", "group2").build();
-              .withIdentity("jobA", "group2")
-              .build();
 
-            JobDetail jobB = JobBuilder.newJob(JobB.class)
+            JobDetail jobB = JobBuilder.newJob(JobB.class).withIdentity("jobB", "group2").build();
-              .withIdentity("jobB", "group2")
-              .build();
 
-            Trigger triggerA = TriggerBuilder.newTrigger()
+            Trigger triggerA = TriggerBuilder.newTrigger().withIdentity("triggerA", "group2").startNow().withPriority(15).withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(40).repeatForever()).build();
-              .withIdentity("triggerA", "group2")
-              .startNow()
-              .withPriority(15)
-              .withSchedule(SimpleScheduleBuilder.simpleSchedule()
-                .withIntervalInSeconds(40)
-                .repeatForever())
-              .build();
 
-            Trigger triggerB = TriggerBuilder.newTrigger()
+            Trigger triggerB = TriggerBuilder.newTrigger().withIdentity("triggerB", "group2").startNow().withPriority(10).withSchedule(SimpleScheduleBuilder.simpleSchedule().withIntervalInSeconds(20).repeatForever()).build();
-              .withIdentity("triggerB", "group2")
-              .startNow()
-              .withPriority(10)
-              .withSchedule(SimpleScheduleBuilder.simpleSchedule()
-                .withIntervalInSeconds(20)
-                .repeatForever())
-              .build();
 
             sched.scheduleJob(job, trigger);
             sched.scheduleJob(jobA, triggerA);

libraries/src/main/java/com/baeldung/quartz/SimpleJob.java

@@ -8,8 +8,7 @@ import org.quartz.JobExecutionException;
 public class SimpleJob implements Job {
 
     public void execute(JobExecutionContext context) throws JobExecutionException {
-        JobDataMap dataMap = context.getJobDetail()
+        JobDataMap dataMap = context.getJobDetail().getJobDataMap();
-          .getJobDataMap();
 
         String jobSays = dataMap.getString("jobSays");
         float myFloatValue = dataMap.getFloat("myFloatValue");

libraries/src/main/java/com/baeldung/retrofit/basic/GitHubBasicApi.java

@@ -26,8 +26,6 @@ public interface GitHubBasicApi {
      * @return GitHub Repository Contributors
      */
     @GET("repos/{user}/{repo}/contributors")
-    Call<List<Contributor>> listRepoContributors(
+    Call<List<Contributor>> listRepoContributors(@Path("user") String user, @Path("repo") String repo);
-      @Path("user") String user,
-      @Path("repo") String repo);
 
 }

libraries/src/main/java/com/baeldung/retrofit/basic/GitHubBasicApp.java

@@ -7,8 +7,7 @@ public class GitHubBasicApp {
 
     public static void main(String[] args) throws IOException {
         String userName = "eugenp";
-        List<String> topContributors = new GitHubBasicService()
+        List<String> topContributors = new GitHubBasicService().getTopContributors(userName);
-          .getTopContributors(userName);
         topContributors.forEach(System.out::println);
     }
 }

libraries/src/main/java/com/baeldung/retrofit/basic/GitHubBasicService.java

@@ -16,45 +16,29 @@ class GitHubBasicService {
     private GitHubBasicApi gitHubApi;
 
     GitHubBasicService() {
-        Retrofit retrofit = new Retrofit.Builder()
+        Retrofit retrofit = new Retrofit.Builder().baseUrl("https://api.github.com/").addConverterFactory(GsonConverterFactory.create()).build();
-          .baseUrl("https://api.github.com/")
-          .addConverterFactory(GsonConverterFactory.create())
-          .build();
 
         gitHubApi = retrofit.create(GitHubBasicApi.class);
     }
 
     List<String> getTopContributors(String userName) throws IOException {
-        List<Repository> repos = gitHubApi
+        List<Repository> repos = gitHubApi.listRepos(userName).execute().body();
-          .listRepos(userName)
-          .execute()
-          .body();
 
         repos = repos != null ? repos : Collections.emptyList();
 
-        return repos.stream()
+        return repos.stream().flatMap(repo -> getContributors(userName, repo)).sorted((a, b) -> b.getContributions() - a.getContributions()).map(Contributor::getName).distinct().sorted().collect(Collectors.toList());
-          .flatMap(repo -> getContributors(userName, repo))
-          .sorted((a, b) -> b.getContributions() - a.getContributions())
-          .map(Contributor::getName)
-          .distinct()
-          .sorted()
-          .collect(Collectors.toList());
     }
 
     private Stream<Contributor> getContributors(String userName, Repository repo) {
         List<Contributor> contributors = null;
         try {
-            contributors = gitHubApi
+            contributors = gitHubApi.listRepoContributors(userName, repo.getName()).execute().body();
-              .listRepoContributors(userName, repo.getName())
-              .execute()
-              .body();
         } catch (IOException e) {
             e.printStackTrace();
         }
 
         contributors = contributors != null ? contributors : Collections.emptyList();
 
-        return contributors.stream()
+        return contributors.stream().filter(c -> c.getContributions() > 100);
-          .filter(c -> c.getContributions() > 100);
     }
 }

libraries/src/main/java/com/baeldung/retrofit/models/Contributor.java

@@ -12,12 +12,15 @@ public class Contributor {
     public String getName() {
         return name;
     }
+
     public void setName(String name) {
         this.name = name;
     }
+
     public Integer getContributions() {
         return contributions;
     }
+
     public void setContributions(Integer contributions) {
         this.contributions = contributions;
     }

libraries/src/main/java/com/baeldung/retrofit/models/Repository.java

@@ -9,12 +9,15 @@ public class Repository {
     public String getName() {
         return name;
     }
+
     public void setName(String name) {
         this.name = name;
     }
+
     public String getDescription() {
         return description;
     }
+
     public void setDescription(String description) {
         this.description = description;
     }

libraries/src/main/java/com/baeldung/retrofit/rx/GitHubRxApi.java

@@ -26,8 +26,6 @@ public interface GitHubRxApi {
      * @return GitHub Repository Contributors
      */
     @GET("repos/{user}/{repo}/contributors")
-    Observable<List<Contributor>> listRepoContributors(
+    Observable<List<Contributor>> listRepoContributors(@Path("user") String user, @Path("repo") String repo);
-      @Path("user") String user,
-      @Path("repo") String repo);
 
 }

libraries/src/main/java/com/baeldung/retrofit/rx/GitHubRxApp.java

@@ -6,7 +6,6 @@ public class GitHubRxApp {
 
     public static void main(String[] args) throws IOException {
         String userName = "eugenp";
-        new GitHubRxService().getTopContributors(userName)
+        new GitHubRxService().getTopContributors(userName).subscribe(System.out::println);
-          .subscribe(System.out::println);
     }
 }

libraries/src/main/java/com/baeldung/retrofit/rx/GitHubRxService.java

@@ -11,23 +11,13 @@ class GitHubRxService {
     private GitHubRxApi gitHubApi;
 
     GitHubRxService() {
-        Retrofit retrofit = new Retrofit.Builder()
+        Retrofit retrofit = new Retrofit.Builder().baseUrl("https://api.github.com/").addConverterFactory(GsonConverterFactory.create()).addCallAdapterFactory(RxJavaCallAdapterFactory.create()).build();
-          .baseUrl("https://api.github.com/")
-          .addConverterFactory(GsonConverterFactory.create())
-          .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
-          .build();
 
         gitHubApi = retrofit.create(GitHubRxApi.class);
     }
 
     Observable<String> getTopContributors(String userName) {
-        return gitHubApi.listRepos(userName)
+        return gitHubApi.listRepos(userName).flatMapIterable(x -> x).flatMap(repo -> gitHubApi.listRepoContributors(userName, repo.getName())).flatMapIterable(x -> x).filter(c -> c.getContributions() > 100)
-          .flatMapIterable(x -> x)
+                .sorted((a, b) -> b.getContributions() - a.getContributions()).map(Contributor::getName).distinct();
-          .flatMap(repo -> gitHubApi.listRepoContributors(userName, repo.getName()))
-          .flatMapIterable(x -> x)
-          .filter(c -> c.getContributions() > 100)
-          .sorted((a, b) -> b.getContributions() - a.getContributions())
-          .map(Contributor::getName)
-          .distinct();
     }
 }

libraries/src/main/java/com/baeldung/retrofitguide/GitHubServiceGenerator.java

@@ -13,19 +13,13 @@ public class GitHubServiceGenerator {
 
     private static final String BASE_URL = "https://api.github.com/";
 
-    private static Retrofit.Builder builder
+    private static Retrofit.Builder builder = new Retrofit.Builder().baseUrl(BASE_URL).addConverterFactory(GsonConverterFactory.create());
-            = new Retrofit.Builder()
-                    .baseUrl(BASE_URL)
-                    .addConverterFactory(GsonConverterFactory.create());
 
     private static Retrofit retrofit = builder.build();
 
-    private static OkHttpClient.Builder httpClient
+    private static OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
-            = new OkHttpClient.Builder();
 
-    private static HttpLoggingInterceptor logging
+    private static HttpLoggingInterceptor logging = new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BASIC);
-            = new HttpLoggingInterceptor()
-                    .setLevel(HttpLoggingInterceptor.Level.BASIC);
 
     public static <S> S createService(Class<S> serviceClass) {
         if (!httpClient.interceptors().contains(logging)) {
@@ -43,8 +37,7 @@ public class GitHubServiceGenerator {
                 @Override
                 public Response intercept(Interceptor.Chain chain) throws IOException {
                     Request original = chain.request();
-                    Request.Builder builder = original.newBuilder()
+                    Request.Builder builder = original.newBuilder().header("Authorization", token);
-                            .header("Authorization", token);
                     Request request = builder.build();
                     return chain.proceed(request);
                 }

libraries/src/main/java/com/baeldung/retrofitguide/Main.java

@@ -13,11 +13,7 @@ public class Main {
     public static void main(String[] args) {
         // Manual creation
         OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
-        Retrofit retrofit = new Retrofit.Builder()
+        Retrofit retrofit = new Retrofit.Builder().baseUrl("https://api.github.com/").addConverterFactory(GsonConverterFactory.create()).client(httpClient.build()).build();
-                .baseUrl("https://api.github.com/")
-                .addConverterFactory(GsonConverterFactory.create())
-                .client(httpClient.build())
-                .build();
         UserService service = retrofit.create(UserService.class);
         // Using GitHubServiceGenerator
         service = GitHubServiceGenerator.createService(UserService.class);

libraries/src/main/java/com/baeldung/serenity/membership/Member.java

@@ -12,7 +12,8 @@ public class Member {
     private int points;
 
     private Member(int points) {
-        if (points < 0) throw new IllegalArgumentException("points must not be negative!");
+        if (points < 0)
+            throw new IllegalArgumentException("points must not be negative!");
         this.points = points;
 
     }
@@ -22,9 +23,12 @@ public class Member {
     }
 
     public MemberGrade getGrade() {
-        if (points < 1000) return Bronze;
+        if (points < 1000)
-        else if (points >= 1000 && points < 5000) return Silver;
+            return Bronze;
-        else return Gold;
+        else if (points >= 1000 && points < 5000)
+            return Silver;
+        else
+            return Gold;
     }
 
     public void spend(int moneySpent) {

libraries/src/main/java/com/baeldung/smooks/converter/OrderConverter.java

@@ -22,7 +22,6 @@ public class OrderConverter {
         }
     }
 
-
     public String convertOrderXMLtoEDIFACT(String path) throws IOException, SAXException {
         return convertDocumentWithTempalte(path, "/smooks/smooks-transform-edi.xml");
     }

libraries/src/main/java/com/baeldung/smooks/model/Item.java

@@ -15,7 +15,6 @@ public class Item {
     private Double price;
     private Integer quantity;
 
-
     public String getCode() {
         return code;
     }
@@ -42,13 +41,17 @@ public class Item {
 
     @Override
     public boolean equals(Object o) {
-        if (this == o) return true;
+        if (this == o)
-        if (o == null || getClass() != o.getClass()) return false;
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
 
         Item item = (Item) o;
 
-        if (code != null ? !code.equals(item.code) : item.code != null) return false;
+        if (code != null ? !code.equals(item.code) : item.code != null)
-        if (price != null ? !price.equals(item.price) : item.price != null) return false;
+            return false;
+        if (price != null ? !price.equals(item.price) : item.price != null)
+            return false;
         return quantity != null ? quantity.equals(item.quantity) : item.quantity == null;
     }
 
@@ -62,10 +65,6 @@ public class Item {
 
     @Override
     public String toString() {
-        return "Item{" +
+        return "Item{" + "code='" + code + '\'' + ", price=" + price + ", quantity=" + quantity + '}';
-                "code='" + code + '\'' +
-                ", price=" + price +
-                ", quantity=" + quantity +
-                '}';
     }
 }

libraries/src/main/java/com/baeldung/smooks/model/Supplier.java

@@ -31,12 +31,15 @@ public class Supplier {
 
     @Override
     public boolean equals(Object o) {
-        if (this == o) return true;
+        if (this == o)
-        if (o == null || getClass() != o.getClass()) return false;
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
 
         Supplier supplier = (Supplier) o;
 
-        if (name != null ? !name.equals(supplier.name) : supplier.name != null) return false;
+        if (name != null ? !name.equals(supplier.name) : supplier.name != null)
+            return false;
         return phoneNumber != null ? phoneNumber.equals(supplier.phoneNumber) : supplier.phoneNumber == null;
     }
 

libraries/src/main/java/com/baeldung/stm/Account.java

@@ -44,7 +44,6 @@ public class Account {
 
     @Override
     public String toString() {
-        return StmUtils.atomic((TxnCallable<String>)
+        return StmUtils.atomic((TxnCallable<String>) txn -> "Balance: " + balance.get(txn) + " lastUpdateDate: " + lastUpdate.get(txn));
-          txn -> "Balance: " + balance.get(txn) + " lastUpdateDate: " + lastUpdate.get(txn));
     }
 }

libraries/src/main/java/com/baeldung/streamex/StreamEX.java

@@ -16,68 +16,42 @@ public class StreamEX {
 
     public static void main(String[] args) {
         // Collector shortcut methods (toList, toSet, groupingBy, joining, etc.)
-        List<User> users = Arrays.asList(
+        List<User> users = Arrays.asList(new User("name"), new User(), new User());
-                new User("name"), new User(), new User());
+        users.stream().map(User::getName).collect(Collectors.toList());
-        users.stream()
+        List<String> userNames = StreamEx.of(users).map(User::getName).toList();
-                .map(User::getName)
+        Map<Role, List<User>> role2users = StreamEx.of(users).groupingBy(User::getRole);
-                .collect(Collectors.toList());
-        List<String> userNames = StreamEx.of(users)
-                .map(User::getName)
-                .toList();
-        Map<Role, List<User>> role2users = StreamEx.of(users)
-                .groupingBy(User::getRole);
         StreamEx.of(1, 2, 3).joining("; "); // "1; 2; 3"
         // Selecting stream elements of specific type
         List usersAndRoles = Arrays.asList(new User(), new Role());
-        List<Role> roles = IntStreamEx.range(usersAndRoles.size())
+        List<Role> roles = IntStreamEx.range(usersAndRoles.size()).mapToObj(usersAndRoles::get).select(Role.class).toList();
-                .mapToObj(usersAndRoles::get)
-                .select(Role.class)
-                .toList();
         System.out.println(roles);
         // adding elements to Stream
-        List<String> appendedUsers = StreamEx.of(users)
+        List<String> appendedUsers = StreamEx.of(users).map(User::getName).prepend("(none)").append("LAST").toList();
-                .map(User::getName)
-                .prepend("(none)")
-                .append("LAST")
-                .toList();
         System.out.println(appendedUsers);
         // Removing unwanted elements and using the stream as Iterable:
-        for (String line : StreamEx.of(users).map(User::getName)
+        for (String line : StreamEx.of(users).map(User::getName).nonNull()) {
-                .nonNull()) {
             System.out.println(line);
         }
         // Selecting map keys by value predicate:
         Map<String, Role> nameToRole = new HashMap<>();
         nameToRole.put("first", new Role());
         nameToRole.put("second", null);
-        Set<String> nonNullRoles = StreamEx.
+        Set<String> nonNullRoles = StreamEx.ofKeys(nameToRole, Objects::nonNull).toSet();
-                ofKeys(nameToRole, Objects::nonNull)
-                .toSet();
         System.out.println(nonNullRoles);
         // Operating on key-value pairs:
         Map<User, List<Role>> users2roles = transformMap(role2users);
-        Map<String, String> mapToString = EntryStream.of(users2roles)
+        Map<String, String> mapToString = EntryStream.of(users2roles).mapKeys(String::valueOf).mapValues(String::valueOf).toMap();
-                .mapKeys(String::valueOf)
-                .mapValues(String::valueOf)
-                .toMap();
         // Support of byte/char/short/float types:
         short[] src = { 1, 2, 3 };
-        char[] output = IntStreamEx.of(src)
+        char[] output = IntStreamEx.of(src).map(x -> x * 5).toCharArray();
-                .map(x -> x * 5)
-                .toCharArray();
     }
 
     public double[] getDiffBetweenPairs(double... numbers) {
-        return DoubleStreamEx.of(numbers)
+        return DoubleStreamEx.of(numbers).pairMap((a, b) -> b - a).toArray();
-                .pairMap((a, b) -> b - a).toArray();
     }
 
-    public static Map<User, List<Role>> transformMap(
+    public static Map<User, List<Role>> transformMap(Map<Role, List<User>> role2users) {
-            Map<Role, List<User>> role2users) {
+        Map<User, List<Role>> users2roles = EntryStream.of(role2users).flatMapValues(List::stream).invert().grouping();
-        Map<User, List<Role>> users2roles = EntryStream.of(role2users)
-                .flatMapValues(List::stream)
-                .invert()
-                .grouping();
         return users2roles;
     }
 

libraries/src/main/java/com/baeldung/tomcat/MyServlet.java

@@ -9,10 +9,7 @@ import java.io.IOException;
 /**
  * Created by adi on 1/10/18.
  */
-@WebServlet(
+@WebServlet(name = "com.baeldung.tomcat.programmatic.MyServlet", urlPatterns = { "/my-servlet" })
-  name = "com.baeldung.tomcat.programmatic.MyServlet",
-  urlPatterns = {"/my-servlet"}
-)
 public class MyServlet extends HttpServlet {
 
     @Override

libraries/src/main/java/com/baeldung/tomcat/ProgrammaticTomcat.java

@@ -25,9 +25,7 @@ public class ProgrammaticTomcat {
         tomcat.setPort(8080);
         tomcat.setHostname("localhost");
         String appBase = ".";
-        tomcat
+        tomcat.getHost().setAppBase(appBase);
-          .getHost()
-          .setAppBase(appBase);
 
         File docBase = new File(System.getProperty("java.io.tmpdir"));
         Context context = tomcat.addContext("", docBase.getAbsolutePath());

libraries/src/main/java/com/baeldung/yarg/DocumentController.java

@@ -30,25 +30,17 @@ public class DocumentController {
     @RequestMapping(path = "/generate/doc", method = RequestMethod.GET)
     public void generateDocument(HttpServletResponse response) throws IOException {
         ReportBuilder reportBuilder = new ReportBuilder();
-        ReportTemplateBuilder reportTemplateBuilder = new ReportTemplateBuilder()
+        ReportTemplateBuilder reportTemplateBuilder = new ReportTemplateBuilder().documentPath("./src/main/resources/Letter.docx").documentName("Letter.docx").outputType(ReportOutputType.docx).readFileFromPath();
-            .documentPath("./src/main/resources/Letter.docx")
-            .documentName("Letter.docx")
-            .outputType(ReportOutputType.docx)
-            .readFileFromPath();
         reportBuilder.template(reportTemplateBuilder.build());
         BandBuilder bandBuilder = new BandBuilder();
         String json = FileUtils.readFileToString(new File("./src/main/resources/Data.json"));
-        ReportBand main = bandBuilder.name("Main")
+        ReportBand main = bandBuilder.name("Main").query("Main", "parameter=param1 $.main", "json").build();
-            .query("Main", "parameter=param1 $.main", "json")
-            .build();
         reportBuilder.band(main);
         Report report = reportBuilder.build();
 
         Reporting reporting = new Reporting();
         reporting.setFormatterFactory(new DefaultFormatterFactory());
-        reporting.setLoaderFactory(
+        reporting.setLoaderFactory(new DefaultLoaderFactory().setJsonDataLoader(new JsonDataLoader()));
-            new DefaultLoaderFactory()
-                .setJsonDataLoader(new JsonDataLoader()));
         response.setContentType("application/vnd.openxmlformats-officedocument.wordprocessingml.document");
         reporting.runReport(new RunParams(report).param("param1", json), response.getOutputStream());
     }

libraries/src/test/java/com/baeldung/asynchttpclient/AsyncHttpClientTestCase.java

@@ -186,12 +186,7 @@ public class AsyncHttpClientTestCase {
 
         WebSocket WEBSOCKET_CLIENT = null;
         try {
-            WEBSOCKET_CLIENT = Dsl.asyncHttpClient()
+            WEBSOCKET_CLIENT = Dsl.asyncHttpClient().prepareGet("ws://localhost:5590/websocket").addHeader("header_name", "header_value").addQueryParam("key", "value").setRequestTimeout(5000).execute(wsHandler).get();
-              .prepareGet("ws://localhost:5590/websocket")
-              .addHeader("header_name", "header_value")
-              .addQueryParam("key", "value")
-              .setRequestTimeout(5000)
-              .execute(wsHandler).get();
 
             if (WEBSOCKET_CLIENT.isOpen()) {
                 WEBSOCKET_CLIENT.sendPingFrame();

libraries/src/test/java/com/baeldung/awaitility/AsyncServiceLongRunningUnitTest.java

@@ -35,10 +35,7 @@ public class AsyncServiceLongRunningUnitTest {
     public void givenAsyncService_whenInitialize_thenInitOccurs2() {
         asyncService.initialize();
         Callable<Boolean> isInitialized = asyncService::isInitialized;
-        await().atLeast(Duration.ONE_HUNDRED_MILLISECONDS)
+        await().atLeast(Duration.ONE_HUNDRED_MILLISECONDS).atMost(Duration.FIVE_SECONDS).with().pollInterval(Duration.ONE_HUNDRED_MILLISECONDS).until(isInitialized);
-          .atMost(Duration.FIVE_SECONDS)
-          .with().pollInterval(Duration.ONE_HUNDRED_MILLISECONDS)
-          .until(isInitialized);
     }
 
     @Test
@@ -60,9 +57,7 @@ public class AsyncServiceLongRunningUnitTest {
     @Test
     public void givenAsyncService_whenInitialize_thenInitOccurs3() {
         asyncService.initialize();
-        await().until(fieldIn(asyncService)
+        await().until(fieldIn(asyncService).ofType(boolean.class).andWithName("initialized"), equalTo(true));
-          .ofType(boolean.class)
-          .andWithName("initialized"), equalTo(true));
     }
 
     @Test
@@ -77,10 +72,6 @@ public class AsyncServiceLongRunningUnitTest {
     @Test
     public void givenAsyncService_whenGetValue_thenExceptionIgnored() {
         asyncService.initialize();
-        given().ignoreException(IllegalStateException.class)
+        given().ignoreException(IllegalStateException.class).await().atMost(Duration.FIVE_SECONDS).atLeast(Duration.FIVE_HUNDRED_MILLISECONDS).until(asyncService::getValue, equalTo(0L));
-          .await()
-          .atMost(Duration.FIVE_SECONDS)
-          .atLeast(Duration.FIVE_HUNDRED_MILLISECONDS)
-          .until(asyncService::getValue, equalTo(0L));
     }
 }

libraries/src/test/java/com/baeldung/bouncycastle/BouncyCastleLiveTest.java

@@ -28,14 +28,11 @@ public class BouncyCastleLiveTest {
     char[] keyPassword = "password".toCharArray();
 
     @Test
-    public void givenCryptographicResource_whenOperationSuccess_returnTrue()
+    public void givenCryptographicResource_whenOperationSuccess_returnTrue() throws CertificateException, NoSuchProviderException, NoSuchAlgorithmException, IOException, KeyStoreException, UnrecoverableKeyException, CMSException, OperatorCreationException {
-            throws CertificateException, NoSuchProviderException, NoSuchAlgorithmException, IOException,
-            KeyStoreException, UnrecoverableKeyException, CMSException, OperatorCreationException {
         Security.addProvider(new BouncyCastleProvider());
 
         CertificateFactory certFactory = CertificateFactory.getInstance("X.509", "BC");
-        X509Certificate certificate = (X509Certificate) certFactory
+        X509Certificate certificate = (X509Certificate) certFactory.generateCertificate(new FileInputStream(certificatePath));
-                .generateCertificate(new FileInputStream(certificatePath));
         KeyStore keystore = KeyStore.getInstance("PKCS12");
         keystore.load(new FileInputStream(privateKeyPath), p12Password);
         PrivateKey privateKey = (PrivateKey) keystore.getKey("baeldung", keyPassword);

libraries/src/test/java/com/baeldung/bytebuddy/ByteBuddyUnitTest.java

@@ -21,14 +21,9 @@ public class ByteBuddyUnitTest {
 
     @Test
     public void givenObject_whenToString_thenReturnHelloWorldString() throws InstantiationException, IllegalAccessException {
-        DynamicType.Unloaded unloadedType = new ByteBuddy()
+        DynamicType.Unloaded unloadedType = new ByteBuddy().subclass(Object.class).method(ElementMatchers.isToString()).intercept(FixedValue.value("Hello World ByteBuddy!")).make();
-          .subclass(Object.class)
-          .method(ElementMatchers.isToString())
-          .intercept(FixedValue.value("Hello World ByteBuddy!"))
-          .make();
 
-        Class<?> dynamicType = unloadedType.load(getClass().getClassLoader())
+        Class<?> dynamicType = unloadedType.load(getClass().getClassLoader()).getLoaded();
-          .getLoaded();
 
         assertEquals(dynamicType.newInstance().toString(), "Hello World ByteBuddy!");
     }
@@ -36,12 +31,7 @@ public class ByteBuddyUnitTest {
     @Test
     public void givenFoo_whenRedefined_thenReturnFooRedefined() throws Exception {
         ByteBuddyAgent.install();
-        new ByteBuddy()
+        new ByteBuddy().redefine(Foo.class).method(named("sayHelloFoo")).intercept(FixedValue.value("Hello Foo Redefined")).make().load(Foo.class.getClassLoader(), ClassReloadingStrategy.fromInstalledAgent());
-            .redefine(Foo.class)
-            .method(named("sayHelloFoo"))
-            .intercept(FixedValue.value("Hello Foo Redefined"))
-            .make()
-            .load(Foo.class.getClassLoader(), ClassReloadingStrategy.fromInstalledAgent());
         Foo f = new Foo();
         assertEquals(f.sayHelloFoo(), "Hello Foo Redefined");
     }
@@ -49,18 +39,7 @@ public class ByteBuddyUnitTest {
     @Test
     public void givenSayHelloFoo_whenMethodDelegation_thenSayHelloBar() throws IllegalAccessException, InstantiationException {
 
-        String r = new ByteBuddy()
+        String r = new ByteBuddy().subclass(Foo.class).method(named("sayHelloFoo").and(isDeclaredBy(Foo.class).and(returns(String.class)))).intercept(MethodDelegation.to(Bar.class)).make().load(getClass().getClassLoader()).getLoaded().newInstance()
-          .subclass(Foo.class)
-          .method(
-            named("sayHelloFoo")
-            .and(isDeclaredBy(Foo.class)
-            .and(returns(String.class)))
-          )
-          .intercept(MethodDelegation.to(Bar.class))
-          .make()
-          .load(getClass().getClassLoader())
-          .getLoaded()
-          .newInstance()
                 .sayHelloFoo();
 
         assertEquals(r, Bar.sayHelloBar());
@@ -68,15 +47,8 @@ public class ByteBuddyUnitTest {
 
     @Test
     public void givenMethodName_whenDefineMethod_thenCreateMethod() throws Exception {
-        Class<?> type = new ByteBuddy()
+        Class<?> type = new ByteBuddy().subclass(Object.class).name("MyClassName").defineMethod("custom", String.class, Modifier.PUBLIC).intercept(MethodDelegation.to(Bar.class)).defineField("x", String.class, Modifier.PUBLIC).make()
-            .subclass(Object.class)
+                .load(getClass().getClassLoader(), ClassLoadingStrategy.Default.WRAPPER).getLoaded();
-            .name("MyClassName")
-            .defineMethod("custom", String.class, Modifier.PUBLIC)
-            .intercept(MethodDelegation.to(Bar.class))
-            .defineField("x", String.class, Modifier.PUBLIC)
-            .make()
-            .load(getClass().getClassLoader(), ClassLoadingStrategy.Default.WRAPPER)
-            .getLoaded();
 
         Method m = type.getDeclaredMethod("custom", null);
 
@@ -85,5 +57,4 @@ public class ByteBuddyUnitTest {
 
     }
 
-
 }

libraries/src/test/java/com/baeldung/caffeine/CaffeineUnitTest.java

@@ -16,10 +16,7 @@ public class CaffeineUnitTest {
 
     @Test
     public void givenCache_whenPopulate_thenValueStored() {
-        Cache<String, DataObject> cache = Caffeine.newBuilder()
+        Cache<String, DataObject> cache = Caffeine.newBuilder().expireAfterWrite(1, TimeUnit.MINUTES).maximumSize(100).build();
-          .expireAfterWrite(1, TimeUnit.MINUTES)
-          .maximumSize(100)
-          .build();
 
         String key = "A";
         DataObject dataObject = cache.getIfPresent(key);
@@ -44,10 +41,7 @@ public class CaffeineUnitTest {
 
     @Test
     public void givenLoadingCache_whenGet_thenValuePopulated() {
-        LoadingCache<String, DataObject> cache = Caffeine.newBuilder()
+        LoadingCache<String, DataObject> cache = Caffeine.newBuilder().maximumSize(100).expireAfterWrite(1, TimeUnit.MINUTES).build(k -> DataObject.get("Data for " + k));
-          .maximumSize(100)
-          .expireAfterWrite(1, TimeUnit.MINUTES)
-          .build(k -> DataObject.get("Data for " + k));
         String key = "A";
 
         DataObject dataObject = cache.get(key);
@@ -63,10 +57,7 @@ public class CaffeineUnitTest {
     @Test
     public void givenAsyncLoadingCache_whenGet_thenValuePopulated() {
 
-        AsyncLoadingCache<String, DataObject> cache = Caffeine.newBuilder()
+        AsyncLoadingCache<String, DataObject> cache = Caffeine.newBuilder().maximumSize(100).expireAfterWrite(1, TimeUnit.MINUTES).buildAsync(k -> DataObject.get("Data for " + k));
-          .maximumSize(100)
-          .expireAfterWrite(1, TimeUnit.MINUTES)
-          .buildAsync(k -> DataObject.get("Data for " + k));
         String key = "A";
 
         cache.get(key).thenAccept(dataObject -> {
@@ -74,16 +65,12 @@ public class CaffeineUnitTest {
             assertEquals("Data for " + key, dataObject.getData());
         });
 
-        cache.getAll(Arrays.asList("A", "B", "C"))
+        cache.getAll(Arrays.asList("A", "B", "C")).thenAccept(dataObjectMap -> assertEquals(3, dataObjectMap.size()));
-          .thenAccept(dataObjectMap -> assertEquals(3, dataObjectMap.size()));
     }
 
     @Test
     public void givenLoadingCacheWithSmallSize_whenPut_thenSizeIsConstant() {
-        LoadingCache<String, DataObject> cache = Caffeine.newBuilder()
+        LoadingCache<String, DataObject> cache = Caffeine.newBuilder().maximumSize(1).refreshAfterWrite(10, TimeUnit.MINUTES).build(k -> DataObject.get("Data for " + k));
-          .maximumSize(1)
-          .refreshAfterWrite(10, TimeUnit.MINUTES)
-          .build(k -> DataObject.get("Data for " + k));
 
         assertEquals(0, cache.estimatedSize());
 
@@ -99,10 +86,7 @@ public class CaffeineUnitTest {
 
     @Test
     public void givenLoadingCacheWithWeigher_whenPut_thenSizeIsConstant() {
-        LoadingCache<String, DataObject> cache = Caffeine.newBuilder()
+        LoadingCache<String, DataObject> cache = Caffeine.newBuilder().maximumWeight(10).weigher((k, v) -> 5).build(k -> DataObject.get("Data for " + k));
-          .maximumWeight(10)
-          .weigher((k,v) -> 5)
-          .build(k -> DataObject.get("Data for " + k));
 
         assertEquals(0, cache.estimatedSize());
 
@@ -122,20 +106,11 @@ public class CaffeineUnitTest {
 
     @Test
     public void givenTimeEvictionCache_whenTimeLeft_thenValueEvicted() {
-        LoadingCache<String, DataObject> cache = Caffeine.newBuilder()
+        LoadingCache<String, DataObject> cache = Caffeine.newBuilder().expireAfterAccess(5, TimeUnit.MINUTES).build(k -> DataObject.get("Data for " + k));
-          .expireAfterAccess(5, TimeUnit.MINUTES)
-          .build(k -> DataObject.get("Data for " + k));
 
-        cache = Caffeine.newBuilder()
+        cache = Caffeine.newBuilder().expireAfterWrite(10, TimeUnit.SECONDS).weakKeys().weakValues().build(k -> DataObject.get("Data for " + k));
-          .expireAfterWrite(10, TimeUnit.SECONDS)
-          .weakKeys()
-          .weakValues()
-          .build(k -> DataObject.get("Data for " + k));
 
-        cache = Caffeine.newBuilder()
+        cache = Caffeine.newBuilder().expireAfterWrite(10, TimeUnit.SECONDS).softValues().build(k -> DataObject.get("Data for " + k));
-          .expireAfterWrite(10, TimeUnit.SECONDS)
-          .softValues()
-          .build(k -> DataObject.get("Data for " + k));
 
         cache = Caffeine.newBuilder().expireAfter(new Expiry<String, DataObject>() {
             @Override
@@ -154,17 +129,12 @@ public class CaffeineUnitTest {
             }
         }).build(k -> DataObject.get("Data for " + k));
 
-        cache = Caffeine.newBuilder()
+        cache = Caffeine.newBuilder().refreshAfterWrite(1, TimeUnit.MINUTES).build(k -> DataObject.get("Data for " + k));
-          .refreshAfterWrite(1, TimeUnit.MINUTES)
-          .build(k -> DataObject.get("Data for " + k));
     }
 
     @Test
     public void givenCache_whenStatsEnabled_thenStatsRecorded() {
-        LoadingCache<String, DataObject> cache = Caffeine.newBuilder()
+        LoadingCache<String, DataObject> cache = Caffeine.newBuilder().maximumSize(100).recordStats().build(k -> DataObject.get("Data for " + k));
-          .maximumSize(100)
-          .recordStats()
-          .build(k -> DataObject.get("Data for " + k));
         cache.get("A");
         cache.get("A");
 

libraries/src/test/java/com/baeldung/cglib/proxy/BeanGeneratorIntegrationTest.java

@@ -1,6 +1,5 @@
 package com.baeldung.cglib.proxy;
 
-
 import net.sf.cglib.beans.BeanGenerator;
 import org.junit.Test;
 
@@ -18,15 +17,11 @@ public class BeanGeneratorIntegrationTest {
         // when
         beanGenerator.addProperty("name", String.class);
         Object myBean = beanGenerator.create();
-        Method setter = myBean
+        Method setter = myBean.getClass().getMethod("setName", String.class);
-          .getClass()
-          .getMethod("setName", String.class);
         setter.invoke(myBean, "some string value set by a cglib");
 
         // then
-        Method getter = myBean
+        Method getter = myBean.getClass().getMethod("getName");
-          .getClass()
-          .getMethod("getName");
         assertEquals("some string value set by a cglib", getter.invoke(myBean));
     }
 }

libraries/src/test/java/com/baeldung/cglib/proxy/MixinUnitTest.java

@@ -15,10 +15,7 @@ public class MixinUnitTest {
     @Test
     public void givenTwoClasses_whenMixedIntoOne_thenMixinShouldHaveMethodsFromBothClasses() throws Exception {
         // when
-        Mixin mixin = Mixin.create(
+        Mixin mixin = Mixin.create(new Class[] { Interface1.class, Interface2.class, MixinInterface.class }, new Object[] { new Class1(), new Class2() });
-          new Class[]{Interface1.class, Interface2.class, MixinInterface.class},
-          new Object[]{new Class1(), new Class2()}
-        );
         MixinInterface mixinDelegate = (MixinInterface) mixin;
 
         // then

libraries/src/test/java/com/baeldung/commons/beanutils/CourseServiceTest.java

@@ -10,8 +10,7 @@ import org.junit.Test;
 public class CourseServiceTest {
 
     @Test
-    public void givenCourse_whenSetValuesUsingPropertyUtil_thenReturnSetValues() 
+    public void givenCourse_whenSetValuesUsingPropertyUtil_thenReturnSetValues() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
-        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
         Course course = new Course();
         String name = "Computer Science";
         List<String> codes = Arrays.asList("CS", "CS01");
@@ -36,8 +35,7 @@ public class CourseServiceTest {
     }
 
     @Test
-    public void givenCopyProperties_whenCopyCourseToCourseEntity_thenCopyPropertyWithSameName()
+    public void givenCopyProperties_whenCopyCourseToCourseEntity_thenCopyPropertyWithSameName() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
-        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
         Course course = new Course();
         course.setName("Computer Science");
         course.setCodes(Arrays.asList("CS"));

libraries/src/test/java/com/baeldung/commons/collections/CollectionUtilsGuideTest.java

@@ -1,6 +1,5 @@
 package com.baeldung.commons.collections;
 
-
 import com.baeldung.commons.collectionutil.Address;
 import com.baeldung.commons.collectionutil.Customer;
 import org.apache.commons.collections4.CollectionUtils;
@@ -21,7 +20,6 @@ import static org.junit.Assert.assertTrue;
 
 public class CollectionUtilsGuideTest {
 
-
     Customer customer1 = new Customer(1, "Daniel", 123456l, "locality1", "city1", "1234");
     Customer customer4 = new Customer(4, "Bob", 456789l, "locality4", "city4", "4567");
     List<Customer> list1, list2, list3, linkedList1;

libraries/src/test/java/com/baeldung/commons/collections/MapUtilsTest.java

@@ -27,16 +27,8 @@ import static org.junit.Assert.assertTrue;
 
 public class MapUtilsTest {
 
-    private String[][] color2DArray = new String[][]{
+    private String[][] color2DArray = new String[][] { { "RED", "#FF0000" }, { "GREEN", "#00FF00" }, { "BLUE", "#0000FF" } };
-      {"RED", "#FF0000"},
+    private String[] color1DArray = new String[] { "RED", "#FF0000", "GREEN", "#00FF00", "BLUE", "#0000FF" };
-      {"GREEN", "#00FF00"},
-      {"BLUE", "#0000FF"}
-    };
-    private String[] color1DArray = new String[]{
-      "RED", "#FF0000",
-      "GREEN", "#00FF00",
-      "BLUE", "#0000FF"
-    };
     private Map<String, String> colorMap;
 
     @Before
@@ -92,34 +84,26 @@ public class MapUtilsTest {
         Map<String, String> invColorMap = MapUtils.invertMap(this.colorMap);
 
         int size = invColorMap.size();
-        Assertions.assertThat(invColorMap)
+        Assertions.assertThat(invColorMap).hasSameSizeAs(colorMap).containsKeys(this.colorMap.values().toArray(new String[size])).containsValues(this.colorMap.keySet().toArray(new String[size]));
-                .hasSameSizeAs(colorMap)
-                .containsKeys(this.colorMap.values().toArray(new String[size]))
-                .containsValues(this.colorMap.keySet().toArray(new String[size]));
     }
 
     @Test(expected = IllegalArgumentException.class)
     public void whenCreateFixedSizedMapAndAdd_thenMustThrowException() {
-        Map<String, String> rgbMap = MapUtils.fixedSizeMap(MapUtils.putAll(
+        Map<String, String> rgbMap = MapUtils.fixedSizeMap(MapUtils.putAll(new HashMap<String, String>(), this.color1DArray));
-          new HashMap<String, String>(),
-          this.color1DArray));
 
         rgbMap.put("ORANGE", "#FFA500");
     }
 
     @Test(expected = IllegalArgumentException.class)
     public void whenAddDuplicateToUniqueValuesPredicateMap_thenMustThrowException() {
-        Map<String, String> uniqValuesMap
+        Map<String, String> uniqValuesMap = MapUtils.predicatedMap(this.colorMap, null, PredicateUtils.uniquePredicate());
-          = MapUtils.predicatedMap(this.colorMap, null, PredicateUtils.uniquePredicate());
 
         uniqValuesMap.put("NEW_RED", "#FF0000");
     }
 
     @Test
     public void whenCreateLazyMap_theMapIsCreated() {
-        Map<Integer, String> intStrMap = MapUtils.lazyMap(
+        Map<Integer, String> intStrMap = MapUtils.lazyMap(new HashMap<Integer, String>(), TransformerUtils.stringValueTransformer());
-          new HashMap<Integer, String>(),
-          TransformerUtils.stringValueTransformer());
 
         assertThat(intStrMap, is(anEmptyMap()));
 

libraries/src/test/java/com/baeldung/commons/collections/SetUtilsUnitTest.java

@@ -17,8 +17,7 @@ public class SetUtilsUnitTest {
     public void givenSetAndPredicate_whenPredicatedSet_thenValidateSet_and_throw_IllegalArgumentException() {
         Set<String> sourceSet = new HashSet<>();
         sourceSet.addAll(Arrays.asList("London", "Lagos", "Err Source1"));
-        Set<String> validatingSet
+        Set<String> validatingSet = SetUtils.predicatedSet(sourceSet, (s) -> s.startsWith("L"));
-          = SetUtils.predicatedSet(sourceSet, (s) -> s.startsWith("L"));
         validatingSet.add("Err Source2");
     }
 

libraries/src/test/java/com/baeldung/commons/collections4/BagTests.java

@@ -18,8 +18,7 @@ public class BagTests {
 
     @Test
     public void givenMultipleCopies_whenAdded_theCountIsKept() {
-        Bag<Integer> bag = new HashBag<>(
+        Bag<Integer> bag = new HashBag<>(Arrays.asList(new Integer[] { 1, 2, 3, 3, 3, 1, 4 }));
-          Arrays.asList(new Integer[] { 1, 2, 3, 3, 3, 1, 4 }));
 
         assertThat(bag.getCount(1), equalTo(2));
     }
@@ -65,8 +64,7 @@ public class BagTests {
 
     @Test
     public void givenMultipleCopies_whenRemove_allAreRemoved() {
-        Bag<Integer> bag = new HashBag<>(
+        Bag<Integer> bag = new HashBag<>(Arrays.asList(new Integer[] { 1, 2, 3, 3, 3, 1, 4 }));
-          Arrays.asList(new Integer[] { 1, 2, 3, 3, 3, 1, 4 }));
 
         // From 3 we delete 1, 2 remain
         bag.remove(3, 1);
@@ -79,8 +77,7 @@ public class BagTests {
 
     @Test
     public void givenTree_whenDuplicateElementsAdded_thenSort() {
-        TreeBag<Integer> bag = new TreeBag<>(
+        TreeBag<Integer> bag = new TreeBag<>(Arrays.asList(new Integer[] { 7, 5, 1, 7, 2, 3, 3, 3, 1, 4, 7 }));
-          Arrays.asList(new Integer[] { 7, 5, 1, 7, 2, 3, 3, 3, 1, 4, 7 }));
 
         assertThat(bag.first(), equalTo(1));
         assertThat(bag.getCount(bag.first()), equalTo(2));
@@ -90,8 +87,7 @@ public class BagTests {
 
     @Test
     public void givenDecoratedTree_whenTreeAddAPILikeCollectionAPI_thenTrue() {
-        SortedBag<Integer> bag = CollectionSortedBag
+        SortedBag<Integer> bag = CollectionSortedBag.collectionSortedBag(new TreeBag<>());
-          .collectionSortedBag(new TreeBag<>());
 
         bag.add(1);
         assertThat(bag.add(1), is((true)));
@@ -99,9 +95,7 @@ public class BagTests {
 
     @Test
     public void givenSortedBag_whenDuplicateElementsAdded_thenSort() {
-        SynchronizedSortedBag<Integer> bag = SynchronizedSortedBag
+        SynchronizedSortedBag<Integer> bag = SynchronizedSortedBag.synchronizedSortedBag(new TreeBag<>(Arrays.asList(new Integer[] { 7, 5, 1, 7, 2, 3, 3, 3, 1, 4, 7 })));
-          .synchronizedSortedBag(new TreeBag<>(
-            Arrays.asList(new Integer[] { 7, 5, 1, 7, 2, 3, 3, 3, 1, 4, 7 })));
 
         assertThat(bag.first(), equalTo(1));
         assertThat(bag.getCount(bag.first()), equalTo(2));

libraries/src/test/java/com/baeldung/commons/csv/CSVReaderWriterTest.java

@@ -29,10 +29,7 @@ public class CSVReaderWriterTest {
     @Test
     public void givenCSVFile_whenRead_thenContentsAsExpected() throws IOException {
         Reader in = new FileReader("src/test/resources/book.csv");
-        Iterable<CSVRecord> records = CSVFormat.DEFAULT
+        Iterable<CSVRecord> records = CSVFormat.DEFAULT.withHeader(HEADERS).withFirstRecordAsHeader().parse(in);
-          .withHeader(HEADERS)
-          .withFirstRecordAsHeader()
-          .parse(in);
         for (CSVRecord record : records) {
             String author = record.get("author");
             String title = record.get("title");
@@ -52,9 +49,7 @@ public class CSVReaderWriterTest {
                 }
             });
         }
-        assertEquals(EXPECTED_FILESTREAM, sw
+        assertEquals(EXPECTED_FILESTREAM, sw.toString().trim());
-          .toString()
-          .trim());
     }
 
 }

libraries/src/test/java/com/baeldung/commons/dbutils/DbUtilsUnitTest.java

@@ -47,10 +47,8 @@ public class DbUtilsUnitTest {
         List<Map<String, Object>> list = runner.query(connection, "SELECT * FROM employee", beanListHandler);
 
         assertEquals(list.size(), 5);
-        assertEquals(list.get(0)
+        assertEquals(list.get(0).get("firstname"), "John");
-          .get("firstname"), "John");
+        assertEquals(list.get(4).get("firstname"), "Christian");
-        assertEquals(list.get(4)
-          .get("firstname"), "Christian");
     }
 
     @Test
@@ -61,10 +59,8 @@ public class DbUtilsUnitTest {
         List<Employee> employeeList = runner.query(connection, "SELECT * FROM employee", beanListHandler);
 
         assertEquals(employeeList.size(), 5);
-        assertEquals(employeeList.get(0)
+        assertEquals(employeeList.get(0).getFirstName(), "John");
-          .getFirstName(), "John");
+        assertEquals(employeeList.get(4).getFirstName(), "Christian");
-        assertEquals(employeeList.get(4)
-          .getFirstName(), "Christian");
     }
 
     @Test
@@ -85,12 +81,8 @@ public class DbUtilsUnitTest {
         QueryRunner runner = new QueryRunner();
         List<Employee> employees = runner.query(connection, "SELECT * FROM employee", employeeHandler);
 
-        assertEquals(employees.get(0)
+        assertEquals(employees.get(0).getEmails().size(), 2);
-          .getEmails()
+        assertEquals(employees.get(2).getEmails().size(), 3);
-          .size(), 2);
-        assertEquals(employees.get(2)
-          .getEmails()
-          .size(), 3);
         assertNotNull(employees.get(0).getEmails().get(0).getEmployeeId());
     }
 

libraries/src/test/java/com/baeldung/commons/io/CommonsIOUnitTest.java

@@ -25,30 +25,23 @@ import java.nio.charset.Charset;
 public class CommonsIOUnitTest {
 
     @Test
-    public void whenCopyANDReadFileTesttxt_thenMatchExpectedData()
+    public void whenCopyANDReadFileTesttxt_thenMatchExpectedData() throws IOException {
-        throws IOException {
 
         String expectedData = "Hello World from fileTest.txt!!!";
 
-        File file = FileUtils.getFile(getClass().getClassLoader()
+        File file = FileUtils.getFile(getClass().getClassLoader().getResource("fileTest.txt").getPath());
-            .getResource("fileTest.txt")
-            .getPath());
         File tempDir = FileUtils.getTempDirectory();
         FileUtils.copyFileToDirectory(file, tempDir);
         File newTempFile = FileUtils.getFile(tempDir, file.getName());
-        String data = FileUtils.readFileToString(newTempFile,
+        String data = FileUtils.readFileToString(newTempFile, Charset.defaultCharset());
-            Charset.defaultCharset());
 
         Assert.assertEquals(expectedData, data.trim());
     }
 
     @Test
-    public void whenUsingFileNameUtils_thenshowdifferentFileOperations()
+    public void whenUsingFileNameUtils_thenshowdifferentFileOperations() throws IOException {
-        throws IOException {
 
-        String path = getClass().getClassLoader()
+        String path = getClass().getClassLoader().getResource("fileTest.txt").getPath();
-            .getResource("fileTest.txt")
-            .getPath();
 
         String fullPath = FilenameUtils.getFullPath(path);
         String extension = FilenameUtils.getExtension(path);
@@ -60,16 +53,14 @@ public class CommonsIOUnitTest {
     }
 
     @Test
-    public void whenUsingFileSystemUtils_thenDriveFreeSpace()
+    public void whenUsingFileSystemUtils_thenDriveFreeSpace() throws IOException {
-        throws IOException {
 
         long freeSpace = FileSystemUtils.freeSpaceKb("/");
     }
 
     @SuppressWarnings("resource")
     @Test
-    public void whenUsingTeeInputOutputStream_thenWriteto2OutputStreams()
+    public void whenUsingTeeInputOutputStream_thenWriteto2OutputStreams() throws IOException {
-        throws IOException {
 
         final String str = "Hello World.";
         ByteArrayInputStream inputStream = new ByteArrayInputStream(str.getBytes());
@@ -84,46 +75,32 @@ public class CommonsIOUnitTest {
     }
 
     @Test
-    public void whenGetFilewithNameFileFilter_thenFindfileTesttxt()
+    public void whenGetFilewithNameFileFilter_thenFindfileTesttxt() throws IOException {
-        throws IOException {
 
         final String testFile = "fileTest.txt";
 
-        String path = getClass().getClassLoader()
+        String path = getClass().getClassLoader().getResource(testFile).getPath();
-            .getResource(testFile)
-            .getPath();
         File dir = FileUtils.getFile(FilenameUtils.getFullPath(path));
 
         String[] possibleNames = { "NotThisOne", testFile };
 
-        Assert.assertEquals(testFile,
+        Assert.assertEquals(testFile, dir.list(new NameFileFilter(possibleNames, IOCase.INSENSITIVE))[0]);
-            dir.list(new NameFileFilter(possibleNames, IOCase.INSENSITIVE))[0]);
     }
 
     @Test
-    public void whenGetFilewith_ANDFileFilter_thenFindsampletxt()
+    public void whenGetFilewith_ANDFileFilter_thenFindsampletxt() throws IOException {
-        throws IOException {
 
-        String path = getClass().getClassLoader()
+        String path = getClass().getClassLoader().getResource("fileTest.txt").getPath();
-            .getResource("fileTest.txt")
-            .getPath();
         File dir = FileUtils.getFile(FilenameUtils.getFullPath(path));
 
-        Assert.assertEquals("sample.txt",
+        Assert.assertEquals("sample.txt", dir.list(new AndFileFilter(new WildcardFileFilter("*ple*", IOCase.INSENSITIVE), new SuffixFileFilter("txt")))[0]);
-            dir.list(new AndFileFilter(
-                new WildcardFileFilter("*ple*", IOCase.INSENSITIVE),
-                new SuffixFileFilter("txt")))[0]);
     }
 
     @Test
-    public void whenSortDirWithPathFileComparator_thenFirstFileaaatxt()
+    public void whenSortDirWithPathFileComparator_thenFirstFileaaatxt() throws IOException {
-        throws IOException {
 
-        PathFileComparator pathFileComparator = new PathFileComparator(
+        PathFileComparator pathFileComparator = new PathFileComparator(IOCase.INSENSITIVE);
-            IOCase.INSENSITIVE);
+        String path = FilenameUtils.getFullPath(getClass().getClassLoader().getResource("fileTest.txt").getPath());
-        String path = FilenameUtils.getFullPath(getClass().getClassLoader()
-            .getResource("fileTest.txt")
-            .getPath());
         File dir = new File(path);
         File[] files = dir.listFiles();
 
@@ -133,16 +110,11 @@ public class CommonsIOUnitTest {
     }
 
     @Test
-    public void whenSizeFileComparator_thenLargerFile()
+    public void whenSizeFileComparator_thenLargerFile() throws IOException {
-        throws IOException {
 
         SizeFileComparator sizeFileComparator = new SizeFileComparator();
-        File largerFile = FileUtils.getFile(getClass().getClassLoader()
+        File largerFile = FileUtils.getFile(getClass().getClassLoader().getResource("fileTest.txt").getPath());
-            .getResource("fileTest.txt")
+        File smallerFile = FileUtils.getFile(getClass().getClassLoader().getResource("sample.txt").getPath());
-            .getPath());
-        File smallerFile = FileUtils.getFile(getClass().getClassLoader()
-            .getResource("sample.txt")
-            .getPath());
 
         int i = sizeFileComparator.compare(largerFile, smallerFile);
 

libraries/src/test/java/com/baeldung/commons/math/LinearAlgebraUnitTest.java

@@ -8,9 +8,7 @@ public class LinearAlgebraUnitTest {
 
     @Test
     public void whenDecompositionSolverSolve_thenCorrect() {
-        RealMatrix a =
+        RealMatrix a = new Array2DRowRealMatrix(new double[][] { { 2, 3, -2 }, { -1, 7, 6 }, { 4, -3, -5 } }, false);
-                new Array2DRowRealMatrix(new double[][] { { 2, 3, -2 }, { -1, 7, 6 }, { 4, -3, -5 } },
-                        false);
         RealVector b = new ArrayRealVector(new double[] { 1, -2, 1 }, false);
 
         DecompositionSolver solver = new LUDecomposition(a).getSolver();

libraries/src/test/java/com/baeldung/crdt/CRDTTest.java

@@ -35,7 +35,6 @@ public class CRDTTest {
         replica1.add("strawberry");
         replica2.add("pear");
 
-
         assertThat(replica1).contains("apple", "banana", "strawberry");
         assertThat(replica2).contains("apple", "banana", "pear");
 
@@ -70,7 +69,6 @@ public class CRDTTest {
         replica1.increment(3L);
         replica2.increment(5L);
 
-
         assertThat(replica1.get()).isEqualTo(6L);
         assertThat(replica2.get()).isEqualTo(8L);
 
@@ -133,14 +131,12 @@ public class CRDTTest {
         assertThat(replica1.get()).isEqualTo("banana");
         assertThat(replica2.get()).isEqualTo("banana");
 
-
         // when
         crdtStore1.disconnect(crdtStore2);
 
         replica1.set("strawberry");
         replica2.set("pear");
 
-
         assertThat(replica1.get()).isEqualTo("strawberry");
         assertThat(replica2.get()).isEqualTo("pear");
 

libraries/src/test/java/com/baeldung/distinct/DistinctWithJavaFunctionUnitTest.java

@@ -19,25 +19,19 @@ public class DistinctWithJavaFunctionUnitTest {
 
     @Test
     public void whenFilterListByName_thenSizeShouldBe4() {
-        List<Person> personListFiltered = personList.stream()
+        List<Person> personListFiltered = personList.stream().filter(distinctByKey(p -> p.getName())).collect(Collectors.toList());
-            .filter(distinctByKey(p -> p.getName()))
-            .collect(Collectors.toList());
         assertTrue(personListFiltered.size() == 4);
     }
 
     @Test
     public void whenFilterListByAge_thenSizeShouldBe2() {
-        List<Person> personListFiltered = personList.stream()
+        List<Person> personListFiltered = personList.stream().filter(distinctByKey(p -> p.getAge())).collect(Collectors.toList());
-            .filter(distinctByKey(p -> p.getAge()))
-            .collect(Collectors.toList());
         assertTrue(personListFiltered.size() == 2);
     }
 
     @Test
     public void whenFilterListWithDefaultDistinct_thenSizeShouldBe5() {
-        List<Person> personListFiltered = personList.stream()
+        List<Person> personListFiltered = personList.stream().distinct().collect(Collectors.toList());
-            .distinct()
-            .collect(Collectors.toList());
         assertTrue(personListFiltered.size() == 5);
     }
 

libraries/src/test/java/com/baeldung/distinct/DistinctWithStreamexUnitTest.java

@@ -19,17 +19,13 @@ public class DistinctWithStreamexUnitTest {
 
     @Test
     public void whenFilterListByName_thenSizeShouldBe4() {
-        List<Person> personListFiltered = StreamEx.of(personList)
+        List<Person> personListFiltered = StreamEx.of(personList).distinct(Person::getName).toList();
-            .distinct(Person::getName)
-            .toList();
         assertTrue(personListFiltered.size() == 4);
     }
 
     @Test
     public void whenFilterListByAge_thenSizeShouldBe2() {
-        List<Person> personListFiltered = StreamEx.of(personList)
+        List<Person> personListFiltered = StreamEx.of(personList).distinct(Person::getAge).toList();
-            .distinct(Person::getAge)
-            .toList();
         assertTrue(personListFiltered.size() == 2);
     }
 

libraries/src/test/java/com/baeldung/distinct/DistinctWithVavrUnitTest.java

@@ -17,17 +17,13 @@ public class DistinctWithVavrUnitTest {
 
     @Test
     public void whenFilterListByName_thenSizeShouldBe4() {
-        List<Person> personListFiltered = io.vavr.collection.List.ofAll(personList)
+        List<Person> personListFiltered = io.vavr.collection.List.ofAll(personList).distinctBy(Person::getName).toJavaList();
-            .distinctBy(Person::getName)
-            .toJavaList();
         assertTrue(personListFiltered.size() == 4);
     }
 
     @Test
     public void whenFilterListByAge_thenSizeShouldBe2() {
-        List<Person> personListFiltered = io.vavr.collection.List.ofAll(personList)
+        List<Person> personListFiltered = io.vavr.collection.List.ofAll(personList).distinctBy(Person::getAge).toJavaList();
-            .distinctBy(Person::getAge)
-            .toJavaList();
         assertTrue(personListFiltered.size() == 2);
     }
 

libraries/src/test/java/com/baeldung/dockerapi/ContainerLiveTest.java

@@ -38,11 +38,7 @@ public class ContainerLiveTest {
     public void whenListingExitedContainers_thenReturnNonEmptyList() {
 
         // when
-        List<Container> containers = dockerClient.listContainersCmd()
+        List<Container> containers = dockerClient.listContainersCmd().withShowSize(true).withShowAll(true).withStatusFilter("exited").exec();
-                .withShowSize(true)
-                .withShowAll(true)
-                .withStatusFilter("exited")
-                .exec();
 
         // then
         assertThat(containers.size(), is(not(0)));
@@ -52,111 +48,73 @@ public class ContainerLiveTest {
     public void whenCreatingContainer_thenMustReturnContainerId() {
 
         // when
-        CreateContainerResponse container
+        CreateContainerResponse container = dockerClient.createContainerCmd("mongo:3.6").withCmd("--bind_ip_all").withName("mongo").withHostName("baeldung").withEnv("MONGO_LATEST_VERSION=3.6").withPortBindings(PortBinding.parse("9999:27017")).exec();
-                = dockerClient.createContainerCmd("mongo:3.6")
-                .withCmd("--bind_ip_all")
-                .withName("mongo")
-                .withHostName("baeldung")
-                .withEnv("MONGO_LATEST_VERSION=3.6")
-                .withPortBindings(PortBinding.parse("9999:27017"))
-                .exec();
 
         // then
         assertThat(container.getId(), is(not(null)));
     }
 
-
     @Test
     public void whenHavingContainer_thenRunContainer() throws InterruptedException {
 
         // when
-        CreateContainerResponse container
+        CreateContainerResponse container = dockerClient.createContainerCmd("alpine:3.6").withCmd("sleep", "10000").exec();
-                = dockerClient.createContainerCmd("alpine:3.6")
-                .withCmd("sleep", "10000")
-                .exec();
 
         Thread.sleep(3000);
         // then
-        dockerClient.startContainerCmd(container.getId())
+        dockerClient.startContainerCmd(container.getId()).exec();
-                .exec();
 
-        dockerClient.stopContainerCmd(container.getId())
+        dockerClient.stopContainerCmd(container.getId()).exec();
-                .exec();
     }
 
     @Test
     public void whenRunningContainer_thenStopContainer() throws InterruptedException {
 
         // when
-        CreateContainerResponse container
+        CreateContainerResponse container = dockerClient.createContainerCmd("alpine:3.6").withCmd("sleep", "10000").exec();
-                = dockerClient.createContainerCmd("alpine:3.6")
-                .withCmd("sleep", "10000")
-                .exec();
 
         Thread.sleep(3000);
-        dockerClient.startContainerCmd(container.getId())
+        dockerClient.startContainerCmd(container.getId()).exec();
-                .exec();
 
         // then
-        dockerClient.stopContainerCmd(container.getId())
+        dockerClient.stopContainerCmd(container.getId()).exec();
-                .exec();
     }
 
     @Test
     public void whenRunningContainer_thenKillContainer() throws InterruptedException {
 
         // when
-        CreateContainerResponse container
+        CreateContainerResponse container = dockerClient.createContainerCmd("alpine:3.6").withCmd("sleep", "10000").exec();
-                = dockerClient.createContainerCmd("alpine:3.6")
-                .withCmd("sleep", "10000")
-                .exec();
 
-        dockerClient.startContainerCmd(container.getId())
+        dockerClient.startContainerCmd(container.getId()).exec();
-                .exec();
 
         Thread.sleep(3000);
-        dockerClient.stopContainerCmd(container.getId())
+        dockerClient.stopContainerCmd(container.getId()).exec();
-                .exec();
 
         // then
-        dockerClient.killContainerCmd(container.getId())
+        dockerClient.killContainerCmd(container.getId()).exec();
-                .exec();
     }
 
     @Test
     public void whenHavingContainer_thenInspectContainer() {
 
         // when
-        CreateContainerResponse container
+        CreateContainerResponse container = dockerClient.createContainerCmd("alpine:3.6").withCmd("sleep", "10000").exec();
-                = dockerClient.createContainerCmd("alpine:3.6")
-                .withCmd("sleep", "10000")
-                .exec();
 
         // then
-        InspectContainerResponse containerResponse
+        InspectContainerResponse containerResponse = dockerClient.inspectContainerCmd(container.getId()).exec();
-                = dockerClient.inspectContainerCmd(container.getId())
-                .exec();
 
         assertThat(containerResponse.getId(), is(container.getId()));
     }
 
-
     @Test
     public void givenContainer_whenCommittingContainer_thenMustReturnImageId() {
 
         // given
-        CreateContainerResponse container
+        CreateContainerResponse container = dockerClient.createContainerCmd("alpine:3.6").withCmd("sleep", "10000").exec();
-                = dockerClient.createContainerCmd("alpine:3.6")
-                .withCmd("sleep", "10000")
-                .exec();
 
         // when
-        String imageId = dockerClient.commitCmd(container.getId())
+        String imageId = dockerClient.commitCmd(container.getId()).withEnv("SNAPSHOT_YEAR=2018").withMessage("add git support").withCmd("sleep", "10000").withRepository("alpine").withTag("3.6.v2").exec();
-                .withEnv("SNAPSHOT_YEAR=2018")
-                .withMessage("add git support")
-                .withCmd("sleep", "10000")
-                .withRepository("alpine")
-                .withTag("3.6.v2").exec();
 
         // then
         assertThat(imageId, is(not(null)));

libraries/src/test/java/com/baeldung/dockerapi/DockerClientLiveTest.java

@@ -15,8 +15,7 @@ public class DockerClientLiveTest {
     public void whenCreatingDockerClient_thenReturnDefaultInstance() {
 
         // when
-        DefaultDockerClientConfig.Builder config
+        DefaultDockerClientConfig.Builder config = DefaultDockerClientConfig.createDefaultConfigBuilder();
-                = DefaultDockerClientConfig.createDefaultConfigBuilder();
         DockerClient dockerClient = DockerClientBuilder.getInstance(config).build();
 
         // then
@@ -26,9 +25,7 @@ public class DockerClientLiveTest {
     @Test
     public void whenCreatingDockerClientWithDockerHost_thenReturnInstance() {
         // when
-        DockerClient dockerClient
+        DockerClient dockerClient = DockerClientBuilder.getInstance("tcp://docker.bealdung.com:2375").build();
-                = DockerClientBuilder.getInstance("tcp://docker.bealdung.com:2375")
-                .build();
 
         // then
         assertNotNull(dockerClient);
@@ -38,17 +35,8 @@ public class DockerClientLiveTest {
     public void whenCreatingAdvanceDockerClient_thenReturnInstance() {
 
         // when
-        DefaultDockerClientConfig config
+        DefaultDockerClientConfig config = DefaultDockerClientConfig.createDefaultConfigBuilder().withRegistryEmail("info@bealdung.com").withRegistryUrl("register.bealdung.io/v2/").withRegistryPassword("strongpassword").withRegistryUsername("bealdung")
-                = DefaultDockerClientConfig.createDefaultConfigBuilder()
+                .withDockerCertPath("/home/bealdung/public/.docker/certs").withDockerConfig("/home/bealdung/public/.docker/").withDockerTlsVerify("1").withDockerHost("tcp://docker.beauldung.com:2376").build();
-                .withRegistryEmail("info@bealdung.com")
-                .withRegistryUrl("register.bealdung.io/v2/")
-                .withRegistryPassword("strongpassword")
-                .withRegistryUsername("bealdung")
-                .withDockerCertPath("/home/bealdung/public/.docker/certs")
-                .withDockerConfig("/home/bealdung/public/.docker/")
-                .withDockerTlsVerify("1")
-                .withDockerHost("tcp://docker.beauldung.com:2376")
-                .build();
 
         DockerClient dockerClient = DockerClientBuilder.getInstance(config).build();
 
@@ -70,10 +58,7 @@ public class DockerClientLiveTest {
         properties.setProperty("DOCKER_TLS_VERIFY", "1");
         properties.setProperty("DOCKER_HOST", "tcp://docker.bealdung.com:2376");
 
-        DefaultDockerClientConfig config
+        DefaultDockerClientConfig config = DefaultDockerClientConfig.createDefaultConfigBuilder().withProperties(properties).build();
-                = DefaultDockerClientConfig.createDefaultConfigBuilder()
-                .withProperties(properties)
-                .build();
 
         DockerClient dockerClient = DockerClientBuilder.getInstance(config).build();
 

libraries/src/test/java/com/baeldung/dockerapi/ImageLiveTest.java

@@ -44,8 +44,7 @@ public class ImageLiveTest {
     public void whenListingImagesWithIntermediateImages_thenReturnNonEmptyList() {
 
         // when
-        List<Image> images = dockerClient.listImagesCmd()
+        List<Image> images = dockerClient.listImagesCmd().withShowAll(true).exec();
-                .withShowAll(true).exec();
 
         // then
         assertThat(images.size(), is(not(0)));
@@ -55,8 +54,7 @@ public class ImageLiveTest {
     public void whenListingDanglingImages_thenReturnNonNullList() {
 
         // when
-        List<Image> images = dockerClient.listImagesCmd()
+        List<Image> images = dockerClient.listImagesCmd().withDanglingFilter(true).exec();
-                .withDanglingFilter(true).exec();
 
         // then
         assertThat(images, is(not(null)));
@@ -66,13 +64,7 @@ public class ImageLiveTest {
     public void whenBuildingImage_thenMustReturnImageId() {
 
         // when
-        String imageId = dockerClient.buildImageCmd()
+        String imageId = dockerClient.buildImageCmd().withDockerfile(new File("src/test/resources/dockerapi/Dockerfile")).withPull(true).withNoCache(true).withTag("alpine:git").exec(new BuildImageResultCallback()).awaitImageId();
-                .withDockerfile(new File("src/test/resources/dockerapi/Dockerfile"))
-                .withPull(true)
-                .withNoCache(true)
-                .withTag("alpine:git")
-                .exec(new BuildImageResultCallback())
-                .awaitImageId();
 
         // then
         assertThat(imageId, is(not(null)));
@@ -86,8 +78,7 @@ public class ImageLiveTest {
         Image image = images.get(0);
 
         // when
-        InspectImageResponse imageResponse
+        InspectImageResponse imageResponse = dockerClient.inspectImageCmd(image.getId()).exec();
-                = dockerClient.inspectImageCmd(image.getId()).exec();
 
         // then
         assertThat(imageResponse.getId(), is(image.getId()));
@@ -110,20 +101,14 @@ public class ImageLiveTest {
 
     public void pushingAnImage() throws InterruptedException {
 
-        dockerClient.pushImageCmd("baeldung/alpine")
+        dockerClient.pushImageCmd("baeldung/alpine").withTag("3.6.v2").exec(new PushImageResultCallback()).awaitCompletion(90, TimeUnit.SECONDS);
-                .withTag("3.6.v2")
-                .exec(new PushImageResultCallback())
-                .awaitCompletion(90, TimeUnit.SECONDS);
     }
 
     @Test
     public void whenPullingImage_thenImageListNotEmpty() throws InterruptedException {
 
         // when
-        dockerClient.pullImageCmd("alpine")
+        dockerClient.pullImageCmd("alpine").withTag("latest").exec(new PullImageResultCallback()).awaitCompletion(30, TimeUnit.SECONDS);
-                .withTag("latest")
-                .exec(new PullImageResultCallback())
-                .awaitCompletion(30, TimeUnit.SECONDS);
 
         // then
         List<Image> images = dockerClient.listImagesCmd().exec();

libraries/src/test/java/com/baeldung/dockerapi/NetworkLiveTest.java

@@ -38,10 +38,7 @@ public class NetworkLiveTest {
     public void whenCreatingNetwork_thenRetrieveResponse() {
 
         // when
-        CreateNetworkResponse networkResponse
+        CreateNetworkResponse networkResponse = dockerClient.createNetworkCmd().withName("baeldungDefault").withDriver("bridge").exec();
-                = dockerClient.createNetworkCmd()
-                .withName("baeldungDefault")
-                .withDriver("bridge").exec();
 
         // then
         assertThat(networkResponse, is(not(null)));
@@ -51,13 +48,7 @@ public class NetworkLiveTest {
     public void whenCreatingAdvanceNetwork_thenRetrieveResponse() {
 
         // when
-        CreateNetworkResponse networkResponse = dockerClient.createNetworkCmd()
+        CreateNetworkResponse networkResponse = dockerClient.createNetworkCmd().withName("baeldungAdvanced").withIpam(new Ipam().withConfig(new Ipam.Config().withSubnet("172.36.0.0/16").withIpRange("172.36.5.0/24"))).withDriver("bridge").exec();
-                .withName("baeldungAdvanced")
-                .withIpam(new Ipam()
-                        .withConfig(new Ipam.Config()
-                                .withSubnet("172.36.0.0/16")
-                                .withIpRange("172.36.5.0/24")))
-                .withDriver("bridge").exec();
 
         // then
         assertThat(networkResponse, is(not(null)));
@@ -68,8 +59,7 @@ public class NetworkLiveTest {
 
         // when
         String networkName = "bridge";
-        Network network
+        Network network = dockerClient.inspectNetworkCmd().withNetworkId(networkName).exec();
-                = dockerClient.inspectNetworkCmd().withNetworkId(networkName).exec();
 
         // then
         assertThat(network.getName(), is(networkName));
@@ -79,10 +69,7 @@ public class NetworkLiveTest {
     public void whenCreatingNetwork_thenRemove() throws InterruptedException {
 
         // when
-        CreateNetworkResponse networkResponse
+        CreateNetworkResponse networkResponse = dockerClient.createNetworkCmd().withName("baeldungDefault").withDriver("bridge").exec();
-                = dockerClient.createNetworkCmd()
-                .withName("baeldungDefault")
-                .withDriver("bridge").exec();
 
         // then
         Thread.sleep(4000);

libraries/src/test/java/com/baeldung/dockerapi/VolumeLiveTest.java

@@ -44,8 +44,7 @@ public class VolumeLiveTest {
         InspectVolumeResponse volume = volumes.get(0);
 
         // when
-        InspectVolumeResponse volumeResponse
+        InspectVolumeResponse volumeResponse = dockerClient.inspectVolumeCmd(volume.getName()).exec();
-                = dockerClient.inspectVolumeCmd(volume.getName()).exec();
 
         // then
         assertThat(volumeResponse, is(not(null)));
@@ -65,8 +64,7 @@ public class VolumeLiveTest {
     public void whenCreatingNamedVolume_thenGetVolumeId() {
 
         // when
-        CreateVolumeResponse namedVolume
+        CreateVolumeResponse namedVolume = dockerClient.createVolumeCmd().withName("myNamedVolume").exec();
-                = dockerClient.createVolumeCmd().withName("myNamedVolume").exec();
 
         // then
         assertThat(namedVolume.getName(), is(not(null)));
@@ -76,8 +74,7 @@ public class VolumeLiveTest {
     public void whenGettingNamedVolume_thenRemove() throws InterruptedException {
 
         // when
-        CreateVolumeResponse namedVolume
+        CreateVolumeResponse namedVolume = dockerClient.createVolumeCmd().withName("anotherNamedVolume").exec();
-                = dockerClient.createVolumeCmd().withName("anotherNamedVolume").exec();
 
         // then
         Thread.sleep(4000);

libraries/src/test/java/com/baeldung/eclipsecollections/CollectPatternTest.java

@@ -17,7 +17,6 @@ public class CollectPatternTest {
 
         MutableList<String> lastNames = students.collect(Student::getLastName);
 
-        Assertions.assertThat(lastNames)
+        Assertions.assertThat(lastNames).containsExactly("Hopkins", "Adams");
-            .containsExactly("Hopkins", "Adams");
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/ConvertContainerToAnotherTest.java

@@ -12,7 +12,6 @@ public class ConvertContainerToAnotherTest {
     public void whenConvertContainerToAnother_thenCorrect() {
         MutableList<String> cars = (MutableList) ConvertContainerToAnother.convertToList();
 
-        Assertions.assertThat(cars)
+        Assertions.assertThat(cars).containsExactlyElementsOf(FastList.newListWith("Volkswagen", "Toyota", "Mercedes"));
-            .containsExactlyElementsOf(FastList.newListWith("Volkswagen", "Toyota", "Mercedes"));
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/DetectPatternTest.java

@@ -20,7 +20,6 @@ public class DetectPatternTest {
     public void whenDetect_thenCorrect() {
         Integer result = list.detect(Predicates.greaterThan(30));
 
-        Assertions.assertThat(result)
+        Assertions.assertThat(result).isEqualTo(41);
-            .isEqualTo(41);
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/FlatCollectTest.java

@@ -44,7 +44,6 @@ public class FlatCollectTest {
     public void whenFlatCollect_thenCorrect() {
         MutableList<String> addresses = students.flatCollect(Student::getAddresses);
 
-        Assertions.assertThat(addresses)
+        Assertions.assertThat(addresses).containsExactlyElementsOf(this.expectedAddresses);
-            .containsExactlyElementsOf(this.expectedAddresses);
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/LazyIterationTest.java

@@ -18,7 +18,6 @@ public class LazyIterationTest {
         LazyIterable<Student> lazyStudents = students.asLazy();
         LazyIterable<String> lastNames = lazyStudents.collect(Student::getLastName);
 
-        Assertions.assertThat(lastNames)
+        Assertions.assertThat(lastNames).containsAll(Lists.mutable.with("Hopkins", "Adams", "Rodriguez"));
-            .containsAll(Lists.mutable.with("Hopkins", "Adams", "Rodriguez"));
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/PartitionPatternTest.java

@@ -31,14 +31,10 @@ public class PartitionPatternTest {
                 return each > 30;
             }
         });
-        MutableList<Integer> greaterThanThirty = partitionedFolks.getSelected()
+        MutableList<Integer> greaterThanThirty = partitionedFolks.getSelected().sortThis();
-            .sortThis();
+        MutableList<Integer> smallerThanThirty = partitionedFolks.getRejected().sortThis();
-        MutableList<Integer> smallerThanThirty = partitionedFolks.getRejected()
-            .sortThis();
 
-        Assertions.assertThat(smallerThanThirty)
+        Assertions.assertThat(smallerThanThirty).containsExactly(1, 5, 8, 17, 23);
-            .containsExactly(1, 5, 8, 17, 23);
+        Assertions.assertThat(greaterThanThirty).containsExactly(31, 38, 41);
-        Assertions.assertThat(greaterThanThirty)
-            .containsExactly(31, 38, 41);
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/RejectPatternTest.java

@@ -20,10 +20,8 @@ public class RejectPatternTest {
 
     @Test
     public void whenReject_thenCorrect() {
-        MutableList<Integer> notGreaterThanThirty = list.reject(Predicates.greaterThan(30))
+        MutableList<Integer> notGreaterThanThirty = list.reject(Predicates.greaterThan(30)).sortThis();
-            .sortThis();
 
-        Assertions.assertThat(notGreaterThanThirty)
+        Assertions.assertThat(notGreaterThanThirty).containsExactlyElementsOf(this.expectedList);
-            .containsExactlyElementsOf(this.expectedList);
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/SelectPatternTest.java

@@ -18,17 +18,14 @@ public class SelectPatternTest {
 
     @Test
     public void givenListwhenSelect_thenCorrect() {
-        MutableList<Integer> greaterThanThirty = list.select(Predicates.greaterThan(30))
+        MutableList<Integer> greaterThanThirty = list.select(Predicates.greaterThan(30)).sortThis();
-            .sortThis();
 
-        Assertions.assertThat(greaterThanThirty)
+        Assertions.assertThat(greaterThanThirty).containsExactly(31, 38, 41);
-            .containsExactly(31, 38, 41);
     }
 
     @SuppressWarnings("rawtypes")
     public MutableList selectUsingLambda() {
-        return list.select(each -> each > 30)
+        return list.select(each -> each > 30).sortThis();
-            .sortThis();
     }
 
     @SuppressWarnings("unchecked")
@@ -36,7 +33,6 @@ public class SelectPatternTest {
     public void givenListwhenSelectUsingLambda_thenCorrect() {
         MutableList<Integer> greaterThanThirty = selectUsingLambda();
 
-        Assertions.assertThat(greaterThanThirty)
+        Assertions.assertThat(greaterThanThirty).containsExactly(31, 38, 41);
-            .containsExactly(31, 38, 41);
     }
 }

libraries/src/test/java/com/baeldung/eclipsecollections/ZipTest.java

@@ -28,7 +28,6 @@ public class ZipTest {
         MutableList<String> cars = Lists.mutable.with("Porsche", "Volvo", "Toyota");
         MutableList<Pair<String, String>> pairs = numbers.zip(cars);
 
-        Assertions.assertThat(pairs)
+        Assertions.assertThat(pairs).containsExactlyElementsOf(this.expectedPairs);
-            .containsExactlyElementsOf(this.expectedPairs);
     }
 }