Merge pull request #4 from eugenp/master

Pulled from eugenp:master to sync my fork

.gitignore

@@ -1,3 +1,5 @@
+*/bin/*
+
 *.class
 
 # Package Files #

.travis.yml

@@ -1,6 +1,9 @@
 language: java
 
-install: travis_wait 40 mvn -q clean install -Dgib.enabled=true
+install: travis_wait 60 mvn -q test
+
+before_script:
+  - echo "MAVEN_OPTS='-Xmx2048M -Xss128M -XX:MaxPermSize=2048M -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:-UseGCOverheadLimit'" > ~/.mavenrc
 
 jdk:
   - oraclejdk8
@@ -15,9 +18,4 @@ cache:
   - .autoconf
   - $HOME/.m2
   
-  sudo: required
 
-  env:
-    global:
-      JAVA_OPTS="-Xmx2048M -Xss128M -XX:MaxPermSize=2048M -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC"
-      MAVEN_OPTS="-Xmx2048M -Xss128M -XX:MaxPermSize=2048M -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC"

algorithms/pom.xml

@@ -10,9 +10,15 @@
 		<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
 		<exec-maven-plugin.version>1.5.0</exec-maven-plugin.version>
 		<lombok.version>1.16.12</lombok.version>
+		<commons-math3.version>3.6.1</commons-math3.version>
 	</properties>
 
 	<dependencies>
+		<dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-math3</artifactId>
+            <version>${commons-math3.version}</version>
+        </dependency>
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>

algorithms/src/main/java/com/baeldung/algorithms/primechecker/BigIntegerPrimeChecker.java

@@ -0,0 +1,13 @@
+package com.baeldung.algorithms.primechecker;
+
+import java.math.BigInteger;
+
+public class BigIntegerPrimeChecker implements PrimeChecker{
+
+    @Override
+    public boolean isPrime(int number) {
+        BigInteger bigInt = BigInteger.valueOf(number);
+        return bigInt.isProbablePrime(100);
+    }
+
+}

algorithms/src/main/java/com/baeldung/algorithms/primechecker/BruteForcePrimeChecker.java

@@ -0,0 +1,13 @@
+package com.baeldung.algorithms.primechecker;
+
+import java.util.stream.IntStream;
+
+public class BruteForcePrimeChecker implements PrimeChecker{
+
+    @Override
+    public boolean isPrime(int number) {
+        return IntStream.range(2, number).noneMatch(n -> (number % n == 0));
+    }
+
+    
+}       

algorithms/src/main/java/com/baeldung/algorithms/primechecker/OptimisedPrimeChecker.java

@@ -0,0 +1,14 @@
+package com.baeldung.algorithms.primechecker;
+
+import java.util.stream.IntStream;
+
+public class OptimisedPrimeChecker implements PrimeChecker{
+
+    @Override
+    public boolean isPrime(int number) {
+        return IntStream.range(2, (int)Math.sqrt(number) + 1)
+            .noneMatch(n -> (number % n == 0));
+    }
+
+    
+}

algorithms/src/main/java/com/baeldung/algorithms/primechecker/PrimeChecker.java

@@ -0,0 +1,6 @@
+package com.baeldung.algorithms.primechecker;
+
+public interface PrimeChecker {
+    
+    public boolean isPrime( int number );
+}

algorithms/src/main/java/com/baeldung/algorithms/primechecker/PrimesPrimeChecker.java

@@ -0,0 +1,12 @@
+package com.baeldung.algorithms.primechecker;
+
+import org.apache.commons.math3.primes.Primes;
+
+public class PrimesPrimeChecker implements PrimeChecker{
+
+    @Override
+    public boolean isPrime(int number) {
+        return Primes.isPrime(number);
+    }
+
+}

algorithms/src/main/java/com/baeldung/automata/RtState.java

@@ -21,12 +21,12 @@ public final class RtState implements State {
     }
 
     public State transit(final CharSequence c) {
-        for(final Transition t : this.transitions) {
+        return transitions
-            if(t.isPossible(c)) {
+          .stream()
-                return t.state();
+          .filter(t -> t.isPossible(c))
-            }
+          .map(Transition::state)
-        }
+          .findAny()
-        throw new IllegalArgumentException("Input not accepted: " + c);
+          .orElseThrow(() -> new IllegalArgumentException("Input not accepted: " + c));
     }
 
     public boolean isFinal() {

algorithms/src/test/java/com/baeldung/algorithms/primechecker/BigIntegerPrimeCheckerTest.java

@@ -0,0 +1,26 @@
+package com.baeldung.algorithms.primechecker;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+import com.baeldung.algorithms.primechecker.BigIntegerPrimeChecker;
+import com.baeldung.algorithms.primechecker.PrimeChecker;
+
+public class BigIntegerPrimeCheckerTest {
+
+    PrimeChecker primeChecker = new BigIntegerPrimeChecker();
+    
+    @Test
+    public void givenPrimeNumber_whenCheckIsPrime_thenTrue(){
+        assertTrue(primeChecker.isPrime(13));
+        assertTrue(primeChecker.isPrime(1009));
+    }
+    
+    @Test
+    public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse(){
+        assertTrue(!primeChecker.isPrime(50));
+        assertTrue(!primeChecker.isPrime(1001));
+    }
+    
+}

algorithms/src/test/java/com/baeldung/algorithms/primechecker/BruteForcePrimeCheckerTest.java

@@ -0,0 +1,27 @@
+package com.baeldung.algorithms.primechecker;
+
+import org.junit.Test;
+
+import com.baeldung.algorithms.primechecker.BruteForcePrimeChecker;
+
+import static org.junit.Assert.*;
+
+public class BruteForcePrimeCheckerTest {
+
+    BruteForcePrimeChecker primeChecker = new BruteForcePrimeChecker();
+    
+    @Test
+    public void givenPrimeNumber_whenCheckIsPrime_thenTrue(){
+        assertTrue(primeChecker.isPrime(13));
+        assertTrue(primeChecker.isPrime(1009));
+    }
+    
+    @Test
+    public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse(){
+        assertTrue(!primeChecker.isPrime(50));
+        assertTrue(!primeChecker.isPrime(1001));
+    }
+    
+    
+    
+}

algorithms/src/test/java/com/baeldung/algorithms/primechecker/OptimisedPrimeCheckerTest.java

@@ -0,0 +1,26 @@
+package com.baeldung.algorithms.primechecker;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+import com.baeldung.algorithms.primechecker.OptimisedPrimeChecker;
+import com.baeldung.algorithms.primechecker.PrimeChecker;
+
+public class OptimisedPrimeCheckerTest {
+
+    PrimeChecker primeChecker = new OptimisedPrimeChecker();
+    
+    @Test
+    public void givenPrimeNumber_whenCheckIsPrime_thenTrue(){
+        assertTrue(primeChecker.isPrime(13));
+        assertTrue(primeChecker.isPrime(1009));
+    }
+    
+    @Test
+    public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse(){
+        assertTrue(!primeChecker.isPrime(50));
+        assertTrue(!primeChecker.isPrime(1001));
+    }
+    
+}

algorithms/src/test/java/com/baeldung/algorithms/primechecker/PrimesPrimeCheckerTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.algorithms.primechecker;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+import com.baeldung.algorithms.primechecker.PrimeChecker;
+import com.baeldung.algorithms.primechecker.PrimesPrimeChecker;
+
+public class PrimesPrimeCheckerTest {
+    PrimeChecker primeChecker = new PrimesPrimeChecker();
+
+    @Test
+    public void givenPrimeNumber_whenCheckIsPrime_thenTrue() {
+        assertTrue(primeChecker.isPrime(13));
+        assertTrue(primeChecker.isPrime(1009));
+    }
+
+    @Test
+    public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse() {
+        assertTrue(!primeChecker.isPrime(50));
+        assertTrue(!primeChecker.isPrime(1001));
+    }
+
+}

apache-poi/.gitignore

@@ -1 +1,3 @@
 *.docx
+temp.xls
+temp.xlsx

core-java/README.md

@@ -84,4 +84,5 @@
 - [Guide to java.util.concurrent.Locks](http://www.baeldung.com/java-concurrent-locks)
 - [Java Primitive Conversions](http://www.baeldung.com/java-primitive-conversions)
 - [Java Money and the Currency API](http://www.baeldung.com/java-money-and-currency)
+- [Guide to Java 8 Comparator.comparing()](http://www.baeldung.com/java-8-comparator-comparing)
 

core-java/pom.xml

@@ -198,7 +198,6 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
                 <configuration>
                     <excludes>
                         <exclude>**/*IntegrationTest.java</exclude>
@@ -250,6 +249,7 @@
                             <goal>single</goal>
                         </goals>
                         <configuration>
+                            <archiveBaseDirectory>${project.basedir}</archiveBaseDirectory>
                             <archive>
                                 <manifest>
                                     <mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>

core-java/src/main/java/com/baeldung/arraycopy/model/Address.java

@@ -0,0 +1,61 @@
+package com.baeldung.arraycopy.model;
+
+public class Address implements Cloneable {
+    private String country;
+    private String state;
+    private String city;
+    private String street;
+    private String zipcode;
+
+    public String getCountry() {
+        return country;
+    }
+
+    public void setCountry(String country) {
+        this.country = country;
+    }
+
+    public String getState() {
+        return state;
+    }
+
+    public void setState(String state) {
+        this.state = state;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    public String getStreet() {
+        return street;
+    }
+
+    public void setStreet(String street) {
+        this.street = street;
+    }
+
+    public String getZipcode() {
+        return zipcode;
+    }
+
+    public void setZipcode(String zipcode) {
+        this.zipcode = zipcode;
+    }
+
+    @Override
+    protected Object clone() throws CloneNotSupportedException {
+        super.clone();
+        Address address = new Address();
+        address.setCity(this.city);
+        address.setCountry(this.country);
+        address.setState(this.state);
+        address.setStreet(this.street);
+        address.setZipcode(this.zipcode);
+        return address;
+    }
+}

core-java/src/main/java/com/baeldung/arraycopy/model/Employee.java

@@ -0,0 +1,25 @@
+package com.baeldung.arraycopy.model;
+
+import java.io.Serializable;
+
+public class Employee implements Serializable {
+    private static final long serialVersionUID = -2454619097207585825L;
+    private int id;
+    private String name;
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

core-java/src/main/java/com/baeldung/pow/PowerExample.java

@@ -0,0 +1,19 @@
+package com.baeldung.pow;
+
+import java.text.DecimalFormat;
+
+public class PowerExample {
+
+    public static void main(String[] args) {
+
+        int intResult = (int) Math.pow(2, 3);
+        System.out.println("Math.pow(2, 3) = " + intResult);
+
+        double dblResult = Math.pow(4.2, 3);
+        System.out.println("Math.pow(4.2, 3) = " + Math.pow(4.2, 3));
+
+        DecimalFormat df = new DecimalFormat(".00");
+        System.out.println("Math.pow(4.2, 3) rounded = " + df.format(dblResult));
+
+    }
+}

core-java/src/test/java/com/baeldung/arraycopy/ArrayCopyUtilTest.java

@@ -0,0 +1,168 @@
+package com.baeldung.arraycopy;
+
+import com.baeldung.arraycopy.model.Address;
+import com.baeldung.arraycopy.model.Employee;
+import org.apache.commons.lang3.SerializationUtils;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.util.Arrays;
+
+public class ArrayCopyUtilTest {
+    private static Employee[] employees;
+    private static final int MAX = 2;
+
+    @BeforeClass
+    public static void setup(){
+      createEmployeesArray();
+    }
+
+    private static void createEmployeesArray() {
+        employees = new Employee[MAX];
+          Employee employee;
+          for(int i = 0; i < MAX; i++) {
+              employee = new Employee();
+              employee.setName("Emp"+i);
+              employee.setId(i);
+              employees[i] = employee;
+          }
+    }
+
+    @Test
+    public void givenArrayOfPrimitiveType_whenCopiedViaSystemsArrayCopy_thenSuccessful(){
+        int[] array = {23, 43, 55};
+        int[] copiedArray = new int[3];
+        
+        System.arraycopy(array, 0, copiedArray, 0, 3);
+        
+        Assert.assertArrayEquals(copiedArray, array);
+    }
+
+    @Test
+    public void givenArrayOfPrimitiveType_whenCopiedSubSequenceViaSystemsArrayCopy_thenSuccessful(){
+        int[] array = {23, 43, 55, 12, 65, 88, 92};
+        int[] copiedArray = new int[3];
+        
+        System.arraycopy(array, 2, copiedArray, 0, 3);
+        
+        Assert.assertTrue(3 == copiedArray.length);
+        Assert.assertTrue(copiedArray[0] == array[2]);
+        Assert.assertTrue(copiedArray[1] == array[3]);
+        Assert.assertTrue(copiedArray[2] == array[4]);
+    }
+
+    @Test
+    public void givenArrayOfPrimitiveType_whenCopiedSubSequenceViaArraysCopyOfRange_thenSuccessful(){
+        int[] array = {23, 43, 55, 12, 65, 88, 92};
+        
+        int[] copiedArray = Arrays.copyOfRange(array, 1, 4);
+        
+        Assert.assertTrue(3 == copiedArray.length);
+        Assert.assertTrue(copiedArray[0] == array[1]);
+        Assert.assertTrue(copiedArray[1] == array[2]);
+        Assert.assertTrue(copiedArray[2] == array[3]);
+    }
+
+    @Test
+    public void givenArrayOfPrimitiveType_whenCopiedViaArraysCopyOf_thenValueChangeIsSuccessful(){
+        int[] array = {23, 43, 55, 12};
+        int newLength = array.length;
+        
+        int[] copiedArray = Arrays.copyOf(array, newLength);
+        
+        Assert.assertArrayEquals(copiedArray, array);
+        array[0] = 9;
+        Assert.assertTrue(copiedArray[0] != array[0]);
+        copiedArray[1] = 12;
+        Assert.assertTrue(copiedArray[1] != array[1]);
+    }
+
+    @Test
+    public void givenArrayOfNonPrimitiveType_whenCopiedViaArraysCopyOf_thenDoShallowCopy(){
+        Employee[] copiedArray = Arrays.copyOf(employees, employees.length);
+        
+        Assert.assertArrayEquals(copiedArray, employees);
+        employees[0].setName(employees[0].getName()+"_Changed");
+        //change in employees' element caused change in the copied array
+        Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName()));
+    }
+
+    @Test
+    public void givenArrayOfPrimitiveType_whenCopiedViaArrayClone_thenValueChangeIsSuccessful(){
+        int[] array = {23, 43, 55, 12};
+        
+        int[] copiedArray = array.clone();
+        
+        Assert.assertArrayEquals(copiedArray, array);
+        array[0] = 9;
+        Assert.assertTrue(copiedArray[0] != array[0]);
+        copiedArray[1] = 12;
+        Assert.assertTrue(copiedArray[1] != array[1]);
+    }
+
+    @Test
+    public void givenArraysOfNonPrimitiveType_whenCopiedViaArrayClone_thenDoShallowCopy(){
+        Employee[] copiedArray = employees.clone();
+        
+        Assert.assertArrayEquals(copiedArray, employees);;
+        employees[0].setName(employees[0].getName()+"_Changed");
+        //change in employees' element changed the copied array
+        Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName()));
+    }
+
+    @Test
+    public void givenArraysOfCloneableNonPrimitiveType_whenCopiedViaArrayClone_thenDoShallowCopy(){
+        Address[] addresses = createAddressArray();
+        
+        Address[] copiedArray = addresses.clone();
+        
+        addresses[0].setCity(addresses[0].getCity()+"_Changed");
+        Assert.assertArrayEquals(copiedArray, addresses);
+    }
+
+    @Test
+    public void givenArraysOfSerializableNonPrimitiveType_whenCopiedViaSerializationUtils_thenDoDeepCopy(){
+        Employee[] copiedArray = SerializationUtils.clone(employees);
+       
+        employees[0].setName(employees[0].getName()+"_Changed");
+        //change in employees' element didn't change in the copied array
+        Assert.assertFalse(
+            copiedArray[0].getName().equals(employees[0].getName()));
+    }
+    
+    @Test
+    public void givenArraysOfNonPrimitiveType_whenCopiedViaStream_thenDoShallowCopy(){
+        Employee[] copiedArray = Arrays.stream(employees).toArray(Employee[]::new);
+        
+        Assert.assertArrayEquals(copiedArray, employees);
+        employees[0].setName(employees[0].getName()+"_Changed");
+        //change in employees' element didn't change in the copied array
+        Assert.assertTrue(copiedArray[0].getName().equals(employees[0].getName()));
+    }
+    
+    @Test
+    public void givenArraysOfPrimitiveType_whenCopiedViaStream_thenSuccessful(){
+        String[] strArray = {"orange", "red", "green'"};
+        
+        String[] copiedArray = Arrays.stream(strArray).toArray(String[]::new);
+        
+        Assert.assertArrayEquals(copiedArray, strArray);
+    }
+    
+    private Address[] createAddressArray(){
+        Address[] addresses = new Address[1];
+        addresses[0] = createAddress();
+        return addresses;
+    }
+
+    private Address createAddress() {
+        Address address = new Address();
+        address.setCountry("USA");
+        address.setState("CA");
+        address.setCity("San Francisco");
+        address.setStreet("Street 1");
+        address.setZipcode("59999");
+        return address;
+    }
+}

core-java/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchExampleIntegrationTest.java

@@ -12,7 +12,7 @@ import java.util.stream.Stream;
 import static java.util.stream.Collectors.toList;
 import static org.assertj.core.api.Assertions.assertThat;
 
-public class CountdownLatchExampleTest {
+public class CountdownLatchExampleIntegrationTest {
     @Test
     public void whenParallelProcessing_thenMainThreadWillBlockUntilCompletion() throws InterruptedException {
         // Given

core-java/src/test/java/com/baeldung/enums/PizzaUnitTest.java

@@ -1,5 +1,6 @@
 package com.baeldung.enums;
 
+import com.baeldung.enums.Pizza.PizzaStatusEnum;
 import org.junit.Test;
 
 import java.util.ArrayList;
@@ -69,11 +70,31 @@ public class PizzaUnitTest {
     }
 
     @Test
-    public void givenPizaOrder_whenDelivered_thenPizzaGetsDeliveredAndStatusChanges() {
+    public void whenDelivered_thenPizzaGetsDeliveredAndStatusChanges() {
         Pizza pz = new Pizza();
         pz.setStatus(Pizza.PizzaStatusEnum.READY);
         pz.deliver();
         assertTrue(pz.getStatus() == Pizza.PizzaStatusEnum.DELIVERED);
     }
     
+    @Test
+    public void whenConvertedIntoEnum_thenGetsConvertedCorrectly() {
+        String pizzaEnumValue = "READY";
+        PizzaStatusEnum pizzaStatusEnum = PizzaStatusEnum.valueOf(pizzaEnumValue);
+        assertTrue(pizzaStatusEnum == PizzaStatusEnum.READY);
+    }
+    
+    @Test(expected = IllegalArgumentException.class)
+    public void whenConvertedIntoEnum_thenThrowsException() {
+        String pizzaEnumValue = "rEAdY";
+        PizzaStatusEnum pizzaStatusEnum = PizzaStatusEnum.valueOf(pizzaEnumValue);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void givenInvalidEnumValueContentWiseAsString_whenConvertedIntoEnum_thenThrowsException() {
+        String pizzaEnumValue = "invalid";
+        PizzaStatusEnum pizzaStatusEnum = PizzaStatusEnum.valueOf(pizzaEnumValue);
+    }
+    
+
 }

core-java/src/test/java/com/baeldung/java8/comparator/Java8ComparatorTest.java

@@ -60,7 +60,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingComparing_thenCheckingSort() {
+    public void whenComparing_thenSortedByName() {
         Comparator<Employee> employeeNameComparator = Comparator.comparing(Employee::getName);
         Arrays.sort(employees, employeeNameComparator);
 //         System.out.println(Arrays.toString(employees));
@@ -68,7 +68,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingComparingWithComparator_thenCheckingSort() {
+    public void whenComparingWithComparator_thenSortedByNameDesc() {
         Comparator<Employee> employeeNameComparator = Comparator.comparing(Employee::getName, (s1, s2) -> {
             return s2.compareTo(s1);
         });
@@ -78,7 +78,16 @@ public class Java8ComparatorTest {
     }
     
     @Test
-    public void givenEmployeeArray_whenUsingComparingInt_thenCheckingSort() {
+    public void whenReversed_thenSortedByNameDesc() {
+    	Comparator<Employee> employeeNameComparator = Comparator.comparing(Employee::getName);
+    	Comparator<Employee> employeeNameComparatorReversed = employeeNameComparator.reversed();
+        Arrays.sort(employees, employeeNameComparatorReversed);
+//         System.out.println(Arrays.toString(employees));
+        assertTrue(Arrays.equals(employees, sortedEmployeesByNameDesc));
+    }
+
+    @Test
+    public void whenComparingInt_thenSortedByAge() {
         Comparator<Employee> employeeAgeComparator = Comparator.comparingInt(Employee::getAge);
         Arrays.sort(employees, employeeAgeComparator);
 //         System.out.println(Arrays.toString(employees));
@@ -86,7 +95,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingComparingLong_thenCheckingSort() {
+    public void whenComparingLong_thenSortedByMobile() {
         Comparator<Employee> employeeMobileComparator = Comparator.comparingLong(Employee::getMobile);
         Arrays.sort(employees, employeeMobileComparator);
 //         System.out.println(Arrays.toString(employees));
@@ -94,7 +103,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingComparingDouble_thenCheckingSort() {
+    public void whenComparingDouble_thenSortedBySalary() {
         Comparator<Employee> employeeSalaryComparator = Comparator.comparingDouble(Employee::getSalary);
         Arrays.sort(employees, employeeSalaryComparator);
 //         System.out.println(Arrays.toString(employees));
@@ -102,7 +111,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingNaturalOrder_thenCheckingSort() {
+    public void whenNaturalOrder_thenSortedByName() {
         Comparator<Employee> employeeNameComparator = Comparator.<Employee> naturalOrder();
         Arrays.sort(employees, employeeNameComparator);
 //         System.out.println(Arrays.toString(employees));
@@ -110,7 +119,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingReverseOrder_thenCheckingSort() {
+    public void whenReverseOrder_thenSortedByNameDesc() {
         Comparator<Employee> employeeNameComparator = Comparator.<Employee> reverseOrder();
         Arrays.sort(employees, employeeNameComparator);
 //        System.out.println(Arrays.toString(employees));
@@ -118,7 +127,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingNullFirst_thenCheckingSort() {
+    public void whenNullsFirst_thenSortedByNameWithNullsFirst() {
         Comparator<Employee> employeeNameComparator = Comparator.comparing(Employee::getName);
         Comparator<Employee> employeeNameComparator_nullFirst = Comparator.nullsFirst(employeeNameComparator);
         Arrays.sort(employeesArrayWithNulls, employeeNameComparator_nullFirst);
@@ -127,7 +136,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingNullLast_thenCheckingSort() {
+    public void whenNullsLast_thenSortedByNameWithNullsLast() {
         Comparator<Employee> employeeNameComparator = Comparator.comparing(Employee::getName);
         Comparator<Employee> employeeNameComparator_nullLast = Comparator.nullsLast(employeeNameComparator);
         Arrays.sort(employeesArrayWithNulls, employeeNameComparator_nullLast);
@@ -136,7 +145,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingThenComparing_thenCheckingSort() {
+    public void whenThenComparing_thenSortedByAgeName() {
         Comparator<Employee> employee_Age_Name_Comparator = Comparator.comparing(Employee::getAge).thenComparing(Employee::getName);
 
         Arrays.sort(someMoreEmployees, employee_Age_Name_Comparator);
@@ -145,7 +154,7 @@ public class Java8ComparatorTest {
     }
 
     @Test
-    public void givenEmployeeArray_whenUsingThenComparingInt_thenCheckingSort() {
+    public void whenThenComparing_thenSortedByNameAge() {
         Comparator<Employee> employee_Name_Age_Comparator = Comparator.comparing(Employee::getName).thenComparingInt(Employee::getAge);
 
         Arrays.sort(someMoreEmployees, employee_Name_Age_Comparator);
@@ -153,40 +162,6 @@ public class Java8ComparatorTest {
         assertTrue(Arrays.equals(someMoreEmployees, sortedEmployeesByNameAge));
     }
 
-     @Before
+
-     public void printData() {
-//     System.out.println("employees");
-//     System.out.println(Arrays.toString(employees));
-    //
-//     System.out.println("employeesArrayWithNulls");
-//     System.out.println(Arrays.toString(employeesArrayWithNulls));
-    //
-    // System.out.println("sortedEmployeesByName");
-    // System.out.println(Arrays.toString(sortedEmployeesByName));
-    //
-    // System.out.println("sortedEmployeesByNameDesc");
-    // System.out.println(Arrays.toString(sortedEmployeesByNameDesc));
-    //
-    // System.out.println("sortedEmployeesByAge");
-    // System.out.println(Arrays.toString(sortedEmployeesByAge));
-    //
-    // System.out.println("sortedEmployeesByMobile");
-    // System.out.println(Arrays.toString(sortedEmployeesByMobile));
-    //
-    // System.out.println("sortedEmployeesBySalary");
-    // System.out.println(Arrays.toString(sortedEmployeesBySalary));
-    //
-    // System.out.println("sortedEmployeesArray_WithNullsFirst");
-    // System.out.println(Arrays.toString(sortedEmployeesArray_WithNullsFirst));
-    //
-    // System.out.println("sortedEmployeesArray_WithNullsLast");
-    // System.out.println(Arrays.toString(sortedEmployeesArray_WithNullsLast));
-    //
-    // System.out.println("sortedEmployeesByNameAge");
-    // System.out.println(Arrays.toString(sortedEmployeesByNameAge));
-    //
-//     System.out.println("someMoreEmployees");
-//     System.out.println(Arrays.toString(someMoreEmployees));
-    //
-     }
 }
+

core-java/src/test/java/com/baeldung/list/flattennestedlist/FlattenNestedListTest.java

@@ -1,52 +1,39 @@
 package com.baeldung.list.flattennestedlist;
 
-import org.junit.Test;
+import static java.util.Arrays.asList;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 import java.util.stream.Collectors;
 
-import static org.junit.Assert.assertNotNull;
+import org.hamcrest.collection.IsIterableContainingInOrder;
-import static org.junit.Assert.assertTrue;
+import org.junit.Test;
 
 public class FlattenNestedListTest {
+    List<List<String>> lol = asList(asList("one:one"), asList("two:one", "two:two", "two:three"), asList("three:one", "three:two", "three:three", "three:four"));
 
     @Test
-    public void givenListOfListOfString_flattenNestedList1() {
+    public void givenString_flattenNestedList1() {
-        // given
+        List<String> ls = flattenListOfListsImperatively(lol);
-        List<String> ls1 = Arrays.asList("one:one", "one:two", "one:three");
-        List<String> ls2 = Arrays.asList("two:one", "two:two", "two:three");
-        List<String> ls3 = Arrays.asList("three:one", "three:two", "three:three");
 
-        List<List<String>> list = Arrays.asList(ls1, ls2, ls3);
-
-        // when
-        List<String> ls = flattenListOfListsImperatively(list);
-
-        // then
         assertNotNull(ls);
-        assertTrue(ls.size() == 9);
+        assertTrue(ls.size() == 8);
-        //TODO content assertion
+        // assert content
+        assertThat(ls, IsIterableContainingInOrder.contains("one:one", "two:one", "two:two", "two:three", "three:one", "three:two", "three:three", "three:four"));
     }
 
     @Test
-    public void givenListOfListOfString_flattenNestedList2() {
+    public void givenString_flattenNestedList2() {
-        // given
+        List<String> ls = flattenListOfListsStream(lol);
-        List<String> ls1 = Arrays.asList("one:one", "one:two", "one:three");
-        List<String> ls2 = Arrays.asList("two:one", "two:two", "two:three");
-        List<String> ls3 = Arrays.asList("three:one", "three:two", "three:three");
 
-        List<List<String>> list = Arrays.asList(ls1, ls2, ls3);
-
-        // when
-        List<String> ls = flattenListOfListsStream(list);
-
-        // then
         assertNotNull(ls);
-        assertTrue(ls.size() == 9);
+        assertTrue(ls.size() == 8);
-        //TODO content assertion
+        // assert content
+        assertThat(ls, IsIterableContainingInOrder.contains("one:one", "two:one", "two:two", "two:three", "three:one", "three:two", "three:three", "three:four"));
     }
 
     public <T> List<T> flattenListOfListsImperatively(List<List<T>> list) {
@@ -56,9 +43,6 @@ public class FlattenNestedListTest {
     }
 
     public <T> List<T> flattenListOfListsStream(List<List<T>> list) {
-        return list.stream()
+        return list.stream().flatMap(Collection::stream).collect(Collectors.toList());
-          .flatMap(Collection::stream)
-          .collect(Collectors.toList());
     }
-
 }

core-java/src/test/java/org/baeldung/java/shell/JavaProcessUnitIntegrationTest.java

@@ -7,7 +7,7 @@ import java.io.*;
 import java.util.concurrent.Executors;
 import java.util.function.Consumer;
 
-public class JavaProcessUnitTest {
+public class JavaProcessUnitIntegrationTest {
     private static final boolean IS_WINDOWS = System.getProperty("os.name").toLowerCase().startsWith("windows");
 
     private static class StreamGobbler implements Runnable {

core-java/src/test/java/org/baeldung/java/streams/ThreadPoolInParallelStreamIntegrationTest.java

@@ -13,7 +13,7 @@ import java.util.stream.Stream;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
-public class ThreadPoolInParallelStreamTest {
+public class ThreadPoolInParallelStreamIntegrationTest {
 
     @Test
     public void giveRangeOfLongs_whenSummedInParallel_shouldBeEqualToExpectedTotal() throws InterruptedException, ExecutionException {

disruptor/pom.xml

@@ -145,6 +145,7 @@
                             <goal>single</goal>
                         </goals>
                         <configuration>
+                            <archiveBaseDirectory>${project.basedir}</archiveBaseDirectory>
                             <archive>
                                 <manifest>
                                     <mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>

guava21/README.md

@@ -0,0 +1 @@
+## Relevant articles:

guava21/pom.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung.guava</groupId>
+    <artifactId>tutorial</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>21.0</version>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/junit/junit -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.11</version>
+        </dependency>
+
+    </dependencies>
+
+
+</project>

guava21/src/main/java/com/baeldung/guava/tutorial/AtomicLongMapTutorials.java

@@ -0,0 +1,27 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.util.concurrent.AtomicLongMap;
+
+public class AtomicLongMapTutorials {
+
+    private AtomicLongMap<String> atomicLongMap;
+
+    public AtomicLongMapTutorials() {
+        atomicLongMap = AtomicLongMap.create();
+    }
+
+    public void addKeys() {
+        atomicLongMap.addAndGet("apple", 250);
+        atomicLongMap.addAndGet("bat", 350);
+        atomicLongMap.addAndGet("cat", 450);
+        atomicLongMap.addAndGet("dog", 550);
+    }
+
+    public static void main(String[] args) {
+        AtomicLongMapTutorials atomicLongMapTutorials = new AtomicLongMapTutorials();
+        atomicLongMapTutorials.addKeys();
+
+        System.out.println(atomicLongMapTutorials.atomicLongMap.get("2"));
+    }
+
+}

guava21/src/main/java/com/baeldung/guava/tutorial/ComparatorsExamples.java

@@ -0,0 +1,25 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.collect.Comparators;
+
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+
+public class ComparatorsExamples {
+
+    public static void main(String[] args) {
+
+        List<Integer> integers = Arrays.asList(1, 2, 3, 4, 4, 6, 7, 8, 9, 10);
+        boolean isInAscendingOrder = Comparators.isInOrder(integers, new AscedingOrderComparator());
+        System.out.println(isInAscendingOrder);
+
+    }
+
+    private static class AscedingOrderComparator implements Comparator<Integer> {
+        @Override
+        public int compare(Integer o1, Integer o2) {
+            return o1.compareTo(o2);
+        }
+    }
+}

guava21/src/main/java/com/baeldung/guava/tutorial/ConcatStreams.java

@@ -0,0 +1,11 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.collect.Streams;
+
+import java.util.stream.Stream;
+
+public class ConcatStreams {
+    public static Stream concatStreams(Stream stream1, Stream stream2, Stream stream3) {
+        return Streams.concat(stream1, stream2, stream3);
+    }
+}

guava21/src/main/java/com/baeldung/guava/tutorial/InternerBuilderExample.java

@@ -0,0 +1,15 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.collect.Interner;
+import com.google.common.collect.Interners;
+
+public class InternerBuilderExample {
+
+    public static void main(String[] args) {
+        Interner<Integer> interners = Interners.<Integer> newBuilder()
+          .concurrencyLevel(2)
+          .strong().<Integer> build();
+
+    }
+
+}

guava21/src/main/java/com/baeldung/guava/tutorial/MonitorExample.java

@@ -0,0 +1,27 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.util.concurrent.Monitor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MonitorExample {
+    private List<String> students = new ArrayList<String>();
+    private static final int MAX_SIZE = 100;
+
+    private Monitor monitor = new Monitor();
+
+    public void addToCourse(String item) throws InterruptedException {
+        Monitor.Guard studentsBelowCapacity = monitor.newGuard(this::isStudentsCapacityUptoLimit);
+        monitor.enterWhen(studentsBelowCapacity);
+        try {
+            students.add(item);
+        } finally {
+            monitor.leave();
+        }
+    }
+
+    public Boolean isStudentsCapacityUptoLimit() {
+        return students.size() > MAX_SIZE;
+    }
+}

guava21/src/main/java/com/baeldung/guava/tutorial/MoreCollectorsExample.java

@@ -0,0 +1,18 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.collect.MoreCollectors;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
+public class MoreCollectorsExample {
+
+    public static void main(String[] args) {
+        List<Integer> numbers = Arrays.asList(1);
+        Optional<Integer> number = numbers
+          .stream()
+          .map(e -> e * 2)
+          .collect(MoreCollectors.toOptional());
+    }
+}

guava21/src/main/java/com/baeldung/guava/tutorial/StreamsUtility.java

@@ -0,0 +1,39 @@
+package com.baeldung.guava.tutorial;
+
+import com.google.common.collect.Streams;
+
+import java.util.*;
+import java.util.stream.DoubleStream;
+import java.util.stream.IntStream;
+import java.util.stream.LongStream;
+import java.util.stream.Stream;
+
+public class StreamsUtility {
+
+    public static void main(String[] args) {
+
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20);
+        //Using Collection
+        Stream<Integer> streamFromCollection = Streams.stream(numbers);
+        //Using Iterator
+        Stream<Integer> streamFromIterator = Streams.stream(numbers.iterator());
+        //Using Iterable
+        Stream<Integer> streamFromIterable = Streams.stream((Iterable<Integer>) numbers);
+        //Using Optional
+        Stream<Integer> streamFromOptional = Streams.stream(Optional.of(1));
+        //Using OptionalLong to LongStream
+        LongStream streamFromOptionalLong = Streams.stream(OptionalLong.of(1));
+        //Using OptionalInt to IntStream
+        IntStream streamFromOptionalInt = Streams.stream(OptionalInt.of(1));
+        //Using OptionalDouble to DoubleStream
+        DoubleStream streamFromOptionalDouble = Streams.stream(OptionalDouble.of(1.0));
+
+        Stream<Integer> concatenatedStreams = Streams.concat(streamFromCollection, streamFromIterable, streamFromIterator);
+
+        List<Integer> integers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+        //This will return 10
+        Optional<Integer> lastItem = Streams.findLast(integers.stream());
+
+        Streams.zip(Stream.of("candy", "chocolate", "bar"), Stream.of("$1", "$2", "$3"), (arg1, arg2) -> arg1 + ":" + arg2);
+    }
+}

guava21/src/test/java/AtomicLongMapTests.java

@@ -0,0 +1,54 @@
+import com.google.common.util.concurrent.AtomicLongMap;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class AtomicLongMapTests {
+
+    private static final String SPRING_COURSE_KEY = "Spring";
+    private static final String HIBERNATE_COURSE_KEY = "hibernate";
+    private static final String GUAVA_COURSE_KEY = "Guava";
+
+    AtomicLongMap<String> courses = AtomicLongMap.create();
+
+    public void setUp() {
+        courses.put(SPRING_COURSE_KEY, 1056);
+        courses.put(HIBERNATE_COURSE_KEY, 259);
+        courses.put(GUAVA_COURSE_KEY, 78);
+    }
+
+    @Test
+    public void accumulateAndGet_withLongBinaryOperator_thenSuccessful() {
+        long noOfStudents = 56;
+        long oldValue = courses.get(SPRING_COURSE_KEY);
+
+        long totalNotesRequired = courses.accumulateAndGet("Guava", noOfStudents, (x, y) -> (x * y));
+
+        assertEquals(totalNotesRequired, oldValue * noOfStudents);
+    }
+
+    @Test
+    public void getAndAccumulate_withLongBinaryOperator_thenSuccessful() {
+        long noOfStudents = 56;
+        long beforeUpdate = courses.get(SPRING_COURSE_KEY);
+
+        long onUpdate = courses.accumulateAndGet("Guava", noOfStudents, (x, y) -> (x * y));
+
+        long afterUpdate = courses.get(SPRING_COURSE_KEY);
+
+        assertEquals(onUpdate, afterUpdate);
+        assertEquals(afterUpdate, beforeUpdate * noOfStudents);
+    }
+
+    @Test
+    public void updateAndGet_withLongUnaryOperator_thenSuccessful() {
+        long beforeUpdate = courses.get(SPRING_COURSE_KEY);
+
+        long onUpdate = courses.updateAndGet("Guava", (x) -> (x / 2));
+
+        long afterUpdate = courses.get(SPRING_COURSE_KEY);
+
+        assertEquals(onUpdate, afterUpdate);
+        assertEquals(afterUpdate, beforeUpdate / 2);
+    }
+}

guava21/src/test/java/ComparatorsUnitTests.java

@@ -0,0 +1,77 @@
+import com.google.common.collect.Comparators;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.function.ToDoubleFunction;
+import java.util.function.ToIntFunction;
+import java.util.function.ToLongFunction;
+
+public class ComparatorsUnitTests {
+
+    @Test
+    public void isInOrderTest() {
+
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 4, 6, 7, 8, 9, 10);
+
+        boolean isInAscendingOrder = Comparators.isInOrder(numbers, new AscendingOrderComparator<Number>());
+
+        Assert.assertTrue(isInAscendingOrder);
+    }
+
+    @Test
+    public void isInStrictOrderTest() {
+
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 3, 6, 7, 8, 9, 10);
+
+        boolean isInAscendingOrder = Comparators.isInOrder(numbers, new AscendingOrderComparator<Number>());
+
+        Assert.assertFalse(isInAscendingOrder);
+    }
+
+    private class AscendingOrderComparator<I extends Number> implements Comparator<Integer> {
+
+        @Override
+        public int compare(Integer o1, Integer o2) {
+            return o1.compareTo(o2);
+        }
+
+        @Override
+        public Comparator<Integer> reversed() {
+            return null;
+        }
+
+        @Override
+        public Comparator<Integer> thenComparing(Comparator<? super Integer> other) {
+            return null;
+        }
+
+        @Override
+        public <U> Comparator<Integer> thenComparing(Function<? super Integer, ? extends U> keyExtractor, Comparator<? super U> keyComparator) {
+            return null;
+        }
+
+        @Override
+        public <U extends Comparable<? super U>> Comparator<Integer> thenComparing(Function<? super Integer, ? extends U> keyExtractor) {
+            return null;
+        }
+
+        @Override
+        public Comparator<Integer> thenComparingInt(ToIntFunction<? super Integer> keyExtractor) {
+            return null;
+        }
+
+        @Override
+        public Comparator<Integer> thenComparingLong(ToLongFunction<? super Integer> keyExtractor) {
+            return null;
+        }
+
+        @Override
+        public Comparator<Integer> thenComparingDouble(ToDoubleFunction<? super Integer> keyExtractor) {
+            return null;
+        }
+    }
+}

guava21/src/test/java/GauavaStreamsTests.java

@@ -0,0 +1,158 @@
+import com.google.common.collect.Streams;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.*;
+import java.util.stream.DoubleStream;
+import java.util.stream.IntStream;
+import java.util.stream.LongStream;
+import java.util.stream.Stream;
+
+public class GauavaStreamsTests {
+
+    List<Integer> numbers;
+
+    @Before
+    public void setUp() {
+        numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20);
+    }
+
+    @Test
+    public void createStreamsWithCollection() {
+        //Deprecated API to create stream from collection
+        Stream streamFromCollection = Streams.stream(numbers);
+
+        //Assert.assertNotNull(streamFromCollection);
+        StreamUtility.assertStreamEquals(streamFromCollection, numbers.stream());
+    }
+
+    @Test
+    public void createStreamsWithIterable() {
+        Iterable<Integer> numbersIterable = (Iterable<Integer>) numbers;
+
+        Stream streamFromIterable = Streams.stream(numbersIterable);
+
+        Assert.assertNotNull(streamFromIterable);
+        StreamUtility.assertStreamEquals(streamFromIterable, numbers.stream());
+    }
+
+    @Test
+    public void createStreamsWithIterator() {
+        Iterator<Integer> numbersIterator = numbers.iterator();
+
+        Stream streamFromIterator = Streams.stream(numbersIterator);
+
+        Assert.assertNotNull(streamFromIterator);
+        StreamUtility.assertStreamEquals(streamFromIterator, numbers.stream());
+    }
+
+    @Test
+    public void createStreamsWithOptional() {
+
+        Stream streamFromOptional = Streams.stream(Optional.of(1));
+
+        Assert.assertNotNull(streamFromOptional);
+        Assert.assertEquals(streamFromOptional.count(), 1);
+    }
+
+    @Test
+    public void createStreamsWithOptionalLong() {
+
+        LongStream streamFromOptionalLong = Streams.stream(OptionalLong.of(1));
+
+        Assert.assertNotNull(streamFromOptionalLong);
+        Assert.assertEquals(streamFromOptionalLong.count(), 1);
+    }
+
+    @Test
+    public void createStreamsWithOptionalInt() {
+
+        IntStream streamFromOptionalInt = Streams.stream(OptionalInt.of(1));
+
+        //Assert.assertNotNull(streamFromOptionalInt);
+        Assert.assertEquals(streamFromOptionalInt.count(), 1);
+    }
+
+    @Test
+    public void createStreamsWithOptionalDouble() {
+
+        DoubleStream streamFromOptionalDouble = Streams.stream(OptionalDouble.of(1.0));
+
+        //Assert.assertNotNull(streamFromOptionalDouble);
+        Assert.assertEquals(streamFromOptionalDouble.count(), 1);
+
+    }
+
+    @Test
+    public void concatStreamsOfSameType() {
+        Stream oddNumbers = Arrays
+          .asList(1, 3, 5, 7, 9, 11, 13, 15, 17, 19)
+          .stream();
+        Stream evenNumbers = Arrays
+          .asList(2, 4, 6, 8, 10, 12, 14, 16, 18, 20)
+          .stream();
+
+        Stream combinedStreams = Streams.concat(oddNumbers, evenNumbers);
+
+        //Assert.assertNotNull(combinedStreams);
+        StreamUtility.assertStreamEquals(combinedStreams, Stream.concat(oddNumbers, evenNumbers));
+    }
+
+    @Test
+    public void concatStreamsOfTypeLongStream() {
+        LongStream firstTwenty = LongStream.range(1, 20);
+        LongStream nextTwenty = LongStream.range(21, 40);
+
+        LongStream combinedStreams = Streams.concat(firstTwenty, nextTwenty);
+
+        Assert.assertNotNull(combinedStreams);
+        StreamUtility.assertStreamEquals(combinedStreams, LongStream.concat(firstTwenty, nextTwenty));
+    }
+
+    @Test
+    public void concatStreamsOfTypeIntStream() {
+        IntStream firstTwenty = IntStream.range(1, 20);
+        IntStream nextTwenty = IntStream.range(21, 40);
+
+        IntStream combinedStreams = Streams.concat(firstTwenty, nextTwenty);
+
+        Assert.assertNotNull(combinedStreams);
+        StreamUtility.assertStreamEquals(combinedStreams, IntStream.concat(firstTwenty, nextTwenty));
+    }
+
+    @Test
+    public void findLastOfStream() {
+        Optional<Integer> lastElement = Streams.findLast(numbers.stream());
+
+        Assert.assertNotNull(lastElement.get());
+        Assert.assertEquals(lastElement.get(), numbers.get(20));
+    }
+
+    @Test
+    public void mapWithIndexTest() {
+        Stream stringSream = Stream.of("a", "b", "c");
+
+        Stream<String> mappedStream = Streams.mapWithIndex(stringSream, (str, index) -> str + ":" + index);
+
+        //Assert.assertNotNull(mappedStream);
+        Assert.assertEquals(mappedStream
+          .findFirst()
+          .get(), "a:0");
+
+    }
+
+    @Test
+    public void streamsZipTest() {
+        Stream stringSream = Stream.of("a", "b", "c");
+        Stream intStream = Stream.of(1, 2, 3);
+        Stream<String> mappedStream = Streams.zip(stringSream, intStream, (str, index) -> str + ":" + index);
+
+        //Assert.assertNotNull(mappedStream);
+        Assert.assertEquals(mappedStream
+          .findFirst()
+          .get(), "a:1");
+
+    }
+
+}

guava21/src/test/java/InternBuilderUnitTests.java

@@ -0,0 +1,18 @@
+import com.google.common.collect.Interner;
+import com.google.common.collect.Interners;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class InternBuilderUnitTests {
+
+    @Test
+    public void interBuilderTest() {
+
+        Interner<Integer> interners = Interners.<Integer> newBuilder()
+          .concurrencyLevel(2)
+          .strong().<Integer> build();
+
+        Assert.assertNotNull(interners);
+    }
+
+}

guava21/src/test/java/MonitorUnitTests.java

@@ -0,0 +1,53 @@
+import com.google.common.util.concurrent.Monitor;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class MonitorUnitTests {
+
+    @Test
+    public void whenGaurdConditionIsTrue_IsSuccessful() {
+        Monitor monitor = new Monitor();
+        boolean enteredInCriticalSection = false;
+
+        Monitor.Guard gaurdCondition = monitor.newGuard(this::returnTrue);
+
+        if (monitor.enterIf(gaurdCondition)) {
+            try {
+                System.out.println("Entered in critical section");
+                enteredInCriticalSection = true;
+            } finally {
+                monitor.leave();
+            }
+        }
+
+        Assert.assertTrue(enteredInCriticalSection);
+
+    }
+
+    @Test
+    public void whenGaurdConditionIsFalse_IsSuccessful() {
+        Monitor monitor = new Monitor();
+        boolean enteredInCriticalSection = false;
+
+        Monitor.Guard gaurdCondition = monitor.newGuard(this::returnFalse);
+
+        if (monitor.enterIf(gaurdCondition)) {
+            try {
+                System.out.println("Entered in critical section");
+                enteredInCriticalSection = true;
+            } finally {
+                monitor.leave();
+            }
+        }
+
+        Assert.assertFalse(enteredInCriticalSection);
+    }
+
+    private boolean returnTrue() {
+        return true;
+    }
+
+    private boolean returnFalse() {
+        return false;
+    }
+}

guava21/src/test/java/MoreCollectorsUnitTests.java

@@ -0,0 +1,36 @@
+import com.google.common.collect.MoreCollectors;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
+public class MoreCollectorsUnitTests {
+
+    @Test
+    public void toOptionalTest() {
+
+        List<Integer> numbers = Arrays.asList(1);
+
+        Optional<Integer> number = numbers
+          .stream()
+          .map(e -> e * 2)
+          .collect(MoreCollectors.toOptional());
+
+        Assert.assertEquals(number.get(), new Integer(2));
+    }
+
+    @Test
+    public void onlyElementTest() {
+        List<Integer> numbers = Arrays.asList(1);
+
+        Integer number = numbers
+          .stream()
+          .map(e -> e * 2)
+          .collect(MoreCollectors.onlyElement());
+
+        Assert.assertEquals(number, new Integer(2));
+    }
+
+}

guava21/src/test/java/StreamUtility.java

@@ -0,0 +1,66 @@
+import org.junit.Assert;
+
+import java.util.Iterator;
+import java.util.stream.DoubleStream;
+import java.util.stream.IntStream;
+import java.util.stream.LongStream;
+import java.util.stream.Stream;
+
+public class StreamUtility {
+
+    public static <T> boolean assertStreamEquals(Stream<T> stream1, Stream<T> stream2) {
+
+        Iterator<T> iterator1 = stream1.iterator();
+        Iterator<T> iterator2 = stream2.iterator();
+
+        while (iterator1.hasNext()) {
+            Assert.assertEquals(iterator1.next(), iterator2.next());
+        }
+
+        Assert.assertFalse(iterator2.hasNext());
+
+        return true;
+    }
+
+    public static boolean assertStreamEquals(LongStream stream1, LongStream stream2) {
+
+        Iterator iterator1 = stream1.iterator();
+        Iterator iterator2 = stream2.iterator();
+
+        while (iterator1.hasNext()) {
+            Assert.assertEquals(iterator1.next(), iterator2.next());
+        }
+
+        Assert.assertFalse(iterator2.hasNext());
+
+        return true;
+    }
+
+    public static boolean assertStreamEquals(DoubleStream stream1, DoubleStream stream2) {
+
+        Iterator iterator1 = stream1.iterator();
+        Iterator iterator2 = stream2.iterator();
+
+        while (iterator1.hasNext()) {
+            Assert.assertEquals(iterator1.next(), iterator2.next());
+        }
+
+        Assert.assertFalse(iterator2.hasNext());
+
+        return true;
+    }
+
+    public static boolean assertStreamEquals(IntStream stream1, IntStream stream2) {
+
+        Iterator iterator1 = stream1.iterator();
+        Iterator iterator2 = stream2.iterator();
+
+        while (iterator1.hasNext()) {
+            Assert.assertEquals(iterator1.next(), iterator2.next());
+        }
+
+        Assert.assertFalse(iterator2.hasNext());
+
+        return true;
+    }
+}

hbase/pom.xml

@@ -33,6 +33,7 @@
             <groupId>org.apache.hbase</groupId>
             <artifactId>hbase</artifactId>
             <version>${hbase.version}</version>
+            <type>pom</type>
         </dependency>
         <dependency>
             <groupId>junit</groupId>

jackson/README.md

@@ -26,3 +26,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Inheritance with Jackson](http://www.baeldung.com/jackson-inheritance)
 - [Guide to @JsonFormat in Jackson](http://www.baeldung.com/jackson-jsonformat)
 - [A Guide to Optional with Jackson](http://www.baeldung.com/jackson-optional)
+- [Map Serialization and Deserialization with Jackson](http://www.baeldung.com/jackson-map)

jackson/pom.xml

@@ -195,7 +195,7 @@
 
     <properties>
         <!-- marshalling -->
-        <jackson.version>2.8.6</jackson.version>
+        <jackson.version>2.8.7</jackson.version>
 
         <!-- logging -->
         <org.slf4j.version>1.7.21</org.slf4j.version>

jackson/src/main/java/com/baeldung/jackson/entities/ClassWithAMap.java

@@ -0,0 +1,24 @@
+package com.baeldung.jackson.entities;
+
+import java.util.Map;
+
+import com.baeldung.jackson.serialization.MyPairDeserializer;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+
+public class ClassWithAMap {
+
+	@JsonProperty("map")
+	@JsonDeserialize(keyUsing = MyPairDeserializer.class)
+	private final Map<MyPair, String> map;
+
+	@JsonCreator
+	public ClassWithAMap(Map<MyPair, String> map) {
+		this.map = map;
+	}
+
+	public Map<MyPair, String> getMap() {
+		return map;
+	}
+}

jackson/src/main/java/com/baeldung/jackson/entities/MyPair.java

@@ -0,0 +1,80 @@
+package com.baeldung.jackson.entities;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public class MyPair {
+
+	private String first;
+	private String second;
+
+	public MyPair(String first, String second) {
+		this.first = first;
+		this.second = second;
+	}
+
+	public MyPair(String both) {
+		String[] pairs = both.split("and");
+		this.first = pairs[0].trim();
+		this.second = pairs[1].trim();
+	}
+
+	@Override
+	@JsonValue
+	public String toString() {
+		return first + " and " + second;
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = prime * result + ((first == null) ? 0 : first.hashCode());
+		result = prime * result + ((second == null) ? 0 : second.hashCode());
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj) {
+			return true;
+		}
+		if (obj == null) {
+			return false;
+		}
+		if (!(obj instanceof MyPair)) {
+			return false;
+		}
+		MyPair other = (MyPair) obj;
+		if (first == null) {
+			if (other.first != null) {
+				return false;
+			}
+		} else if (!first.equals(other.first)) {
+			return false;
+		}
+		if (second == null) {
+			if (other.second != null) {
+				return false;
+			}
+		} else if (!second.equals(other.second)) {
+			return false;
+		}
+		return true;
+	}
+
+	public String getFirst() {
+		return first;
+	}
+
+	public void setFirst(String first) {
+		this.first = first;
+	}
+
+	public String getSecond() {
+		return second;
+	}
+
+	public void setSecond(String second) {
+		this.second = second;
+	}
+}

jackson/src/main/java/com/baeldung/jackson/serialization/MyPairDeserializer.java

@@ -0,0 +1,18 @@
+package com.baeldung.jackson.serialization;
+
+import java.io.IOException;
+
+import com.baeldung.jackson.entities.MyPair;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.KeyDeserializer;
+
+public class MyPairDeserializer extends KeyDeserializer {
+
+	@Override
+	public MyPair deserializeKey(String key, DeserializationContext ctxt)
+			throws IOException, JsonProcessingException {
+
+		return new MyPair(key);
+	}
+}

jackson/src/main/java/com/baeldung/jackson/serialization/MyPairSerializer.java

@@ -0,0 +1,25 @@
+package com.baeldung.jackson.serialization;
+
+import java.io.IOException;
+import java.io.StringWriter;
+
+import com.baeldung.jackson.entities.MyPair;
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializerProvider;
+
+public class MyPairSerializer extends JsonSerializer<MyPair> {
+
+	private final ObjectMapper mapper = new ObjectMapper();
+
+	@Override
+	public void serialize(MyPair value, JsonGenerator gen,
+			SerializerProvider serializers) throws IOException,
+			JsonProcessingException {
+		StringWriter writer = new StringWriter();
+		mapper.writeValue(writer, value);
+		gen.writeFieldName(writer.toString());
+	}
+}

jackson/src/test/java/com/baeldung/jackson/deserialization/JacksonMapDeserializeTest.java

@@ -0,0 +1,69 @@
+package com.baeldung.jackson.deserialization;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.baeldung.jackson.entities.ClassWithAMap;
+import com.baeldung.jackson.entities.MyPair;
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class JacksonMapDeserializeTest {
+
+	private Map<MyPair, String> map;
+	private Map<MyPair, MyPair> cmap;
+	final ObjectMapper mapper = new ObjectMapper();
+
+	@Test
+	public void whenSimpleMapDeserialize_thenCorrect()
+			throws JsonParseException, JsonMappingException, IOException {
+
+		final String jsonInput = "{\"key\": \"value\"}";
+		TypeReference<HashMap<String, String>> typeRef = new TypeReference<HashMap<String, String>>() {
+		};
+
+		final Map<String, String> map = mapper.readValue(jsonInput, typeRef);
+
+		Assert.assertEquals("value", map.get("key"));
+	}
+
+	@Test
+	public void whenObjectStringMapDeserialize_thenCorrect()
+			throws JsonParseException, JsonMappingException, IOException {
+
+		final String jsonInput = "{\"Abbott and Costello\":\"Comedy\"}";
+
+		TypeReference<HashMap<MyPair, String>> typeRef = new TypeReference<HashMap<MyPair, String>>() {
+		};
+
+		map = mapper.readValue(jsonInput, typeRef);
+
+		Assert.assertEquals("Comedy", map.get(new MyPair("Abbott", "Costello")));
+
+		ClassWithAMap classWithMap = mapper.readValue(jsonInput,
+				ClassWithAMap.class);
+
+		Assert.assertEquals("Comedy",
+				classWithMap.getMap().get(new MyPair("Abbott", "Costello")));
+	}
+
+	@Test
+	public void whenObjectObjectMapDeserialize_thenCorrect()
+			throws JsonParseException, JsonMappingException, IOException {
+
+		final String jsonInput = "{\"Abbott and Costello\" : \"Comedy and 1940s\"}";
+		TypeReference<HashMap<MyPair, MyPair>> typeRef = new TypeReference<HashMap<MyPair, MyPair>>() {
+		};
+
+		cmap = mapper.readValue(jsonInput, typeRef);
+
+		Assert.assertEquals(new MyPair("Comedy", "1940s"),
+				cmap.get(new MyPair("Abbott", "Costello")));
+	}
+}

jackson/src/test/java/com/baeldung/jackson/serialization/JacksonMapSerializeTest.java

@@ -0,0 +1,70 @@
+package com.baeldung.jackson.serialization;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.baeldung.jackson.entities.MyPair;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.databind.ser.std.MapSerializer;
+
+public class JacksonMapSerializeTest {
+
+	@JsonSerialize(keyUsing = MyPairSerializer.class)
+	private Map<MyPair, String> map;
+
+	@JsonSerialize(keyUsing = MapSerializer.class)
+	private Map<MyPair, MyPair> cmap;
+
+	@JsonSerialize(keyUsing = MyPairSerializer.class)
+	private MyPair mapKey;
+
+	@JsonSerialize(keyUsing = MyPairSerializer.class)
+	private MyPair mapValue;
+
+	final ObjectMapper mapper = new ObjectMapper();
+
+	@Test
+	public void whenSimpleMapSerialize_thenCorrect()
+			throws JsonProcessingException {
+
+		Map<String, String> map = new HashMap<>();
+		map.put("key", "value");
+
+		final String jsonResult = mapper.writeValueAsString(map);
+
+		Assert.assertEquals("{\"key\":\"value\"}", jsonResult);
+	}
+
+	@Test
+	public void whenCustomObjectStringMapSerialize_thenCorrect()
+			throws JsonProcessingException {
+
+		map = new HashMap<>();
+		MyPair key = new MyPair("Abbott", "Costello");
+		map.put(key, "Comedy");
+
+		final String jsonResult = mapper.writeValueAsString(map);
+
+		Assert.assertEquals("{\"Abbott and Costello\":\"Comedy\"}", jsonResult);
+	}
+
+	@Test
+	public void whenCustomObjectObjectMapSerialize_thenCorrect()
+			throws JsonProcessingException {
+
+		cmap = new HashMap<>();
+		mapKey = new MyPair("Abbott", "Costello");
+		mapValue = new MyPair("Comedy", "1940's");
+		cmap.put(mapKey, mapValue);
+
+		final String jsonResult = mapper.writeValueAsString(cmap);
+
+		Assert.assertEquals("{\"Abbott and Costello\":\"Comedy and 1940's\"}",
+				jsonResult);
+	}
+}

jackson/src/test/java/com/baeldung/jackson/streaming/JacksonStreamingAPITest.java

@@ -0,0 +1,119 @@
+package com.baeldung.jackson.streaming;
+
+
+import com.fasterxml.jackson.core.*;
+import org.junit.Test;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+
+import static junit.framework.Assert.assertNull;
+import static junit.framework.Assert.assertTrue;
+import static junit.framework.TestCase.assertEquals;
+
+public class JacksonStreamingAPITest {
+
+    @Test
+    public void givenJsonGenerator_whenAppendJsonToIt_thenGenerateJson() throws IOException {
+        //given
+        ByteArrayOutputStream stream = new ByteArrayOutputStream();
+        JsonFactory jfactory = new JsonFactory();
+        JsonGenerator jGenerator = jfactory.createGenerator(stream, JsonEncoding.UTF8);
+
+        //when
+        jGenerator.writeStartObject();
+        jGenerator.writeStringField("name", "Tom");
+        jGenerator.writeNumberField("age", 25);
+        jGenerator.writeFieldName("address");
+        jGenerator.writeStartArray();
+        jGenerator.writeString("Poland");
+        jGenerator.writeString("5th avenue");
+        jGenerator.writeEndArray();
+        jGenerator.writeEndObject();
+        jGenerator.close();
+
+        //then
+        String json = new String(stream.toByteArray(), "UTF-8");
+        assertEquals(json, "{\"name\":\"Tom\",\"age\":25,\"address\":[\"Poland\",\"5th avenue\"]}");
+    }
+
+    @Test
+    public void givenJson_whenReadItUsingStreamAPI_thenShouldCreateProperJsonObject() throws IOException {
+        //given
+        String json = "{\"name\":\"Tom\",\"age\":25,\"address\":[\"Poland\",\"5th avenue\"]}";
+        JsonFactory jfactory = new JsonFactory();
+        JsonParser jParser = jfactory.createParser(json);
+
+        String parsedName = null;
+        Integer parsedAge = null;
+        List<String> addresses = new LinkedList<>();
+
+        //when
+        while (jParser.nextToken() != JsonToken.END_OBJECT) {
+
+            String fieldname = jParser.getCurrentName();
+            if ("name".equals(fieldname)) {
+                jParser.nextToken();
+                parsedName = jParser.getText();
+
+            }
+
+            if ("age".equals(fieldname)) {
+                jParser.nextToken();
+                parsedAge = jParser.getIntValue();
+
+            }
+
+            if ("address".equals(fieldname)) {
+                jParser.nextToken();
+
+                while (jParser.nextToken() != JsonToken.END_ARRAY) {
+                    addresses.add(jParser.getText());
+                }
+            }
+
+        }
+        jParser.close();
+
+        //then
+        assertEquals(parsedName, "Tom");
+        assertEquals(parsedAge, (Integer) 25);
+        assertEquals(addresses, Arrays.asList("Poland", "5th avenue"));
+
+    }
+
+    @Test
+    public void givenJson_whenWantToExtractPartOfIt_thenShouldExtractOnlyNeededFieldWithoutGoingThroughWholeJSON() throws IOException {
+        //given
+        String json = "{\"name\":\"Tom\",\"age\":25,\"address\":[\"Poland\",\"5th avenue\"]}";
+        JsonFactory jfactory = new JsonFactory();
+        JsonParser jParser = jfactory.createParser(json);
+
+        String parsedName = null;
+        Integer parsedAge = null;
+        List<String> addresses = new LinkedList<>();
+
+        //when
+        while (jParser.nextToken() != JsonToken.END_OBJECT) {
+
+            String fieldname = jParser.getCurrentName();
+
+            if ("age".equals(fieldname)) {
+                jParser.nextToken();
+                parsedAge = jParser.getIntValue();
+                return;
+            }
+
+        }
+        jParser.close();
+
+        //then
+        assertNull(parsedName);
+        assertEquals(parsedAge, (Integer) 25);
+        assertTrue(addresses.isEmpty());
+
+    }
+}

javaslang/pom.xml

@@ -22,19 +22,40 @@
             <artifactId>javaslang</artifactId>
             <version>2.1.0-alpha</version>
         </dependency>
+        <dependency>
+            <groupId>io.javaslang</groupId>
+            <artifactId>javaslang-test</artifactId>
+            <version>${javaslang.test.version}</version>
+        </dependency>
     </dependencies>
 
+    <properties>
+        <javaslang.test.version>2.0.5</javaslang.test.version>
+    </properties>
+
     <build>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.3</version>
+                <version>3.5.1</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>**/*IntegrationTest.java</exclude>
+                        <exclude>**/*LongRunningUnitTest.java</exclude>
+                        <exclude>**/*ManualTest.java</exclude>
+                    </excludes>
+                    <testFailureIgnore>true</testFailureIgnore>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>

javaslang/src/test/java/com/baeldung/javaslang/PropertyBasedLongRunningUnitTest.java

@@ -0,0 +1,71 @@
+package com.baeldung.javaslang;
+
+import javaslang.CheckedFunction1;
+import javaslang.collection.Stream;
+import javaslang.test.Arbitrary;
+import javaslang.test.CheckResult;
+import javaslang.test.Property;
+import org.junit.Test;
+
+import java.util.function.Predicate;
+
+import static javaslang.API.*;
+
+public class PropertyBasedLongRunningUnitTest {
+
+    private static Predicate<Integer> divisibleByTwo = i -> i % 2 == 0;
+    private static Predicate<Integer> divisibleByFive = i -> i % 5 == 0;
+
+    private Stream<String> stringsSupplier() {
+        return Stream.from(0).map(i -> Match(i).of(
+          Case($(divisibleByFive.and(divisibleByTwo)), "DividedByTwoAndFiveWithoutRemainder"),
+          Case($(divisibleByFive), "DividedByFiveWithoutRemainder"),
+          Case($(divisibleByTwo), "DividedByTwoWithoutRemainder"),
+          Case($(), "")));
+    }
+
+    @Test
+    public void givenArbitrarySeq_whenCheckThatEverySecondElementIsEqualToString_thenTestPass() {
+        //given
+        Arbitrary<Integer> multiplesOf2 = Arbitrary
+          .integer()
+          .filter(i -> i > 0)
+          .filter(i -> i % 2 == 0 && i % 5 != 0);
+
+        //when
+        CheckedFunction1<Integer, Boolean> mustEquals = i -> stringsSupplier()
+          .get(i)
+          .equals("DividedByTwoWithoutRemainder");
+
+        //then
+        CheckResult result = Property
+          .def("Every second element must equal to DividedByTwoWithoutRemainder")
+          .forAll(multiplesOf2)
+          .suchThat(mustEquals)
+          .check(10_000, 100);
+
+        result.assertIsSatisfied();
+    }
+
+    @Test
+    public void givenArbitrarySeq_whenCheckThatEveryFifthElementIsEqualToString_thenTestPass() {
+        //given
+        Arbitrary<Integer> multiplesOf5 = Arbitrary
+          .integer()
+          .filter(i -> i > 0)
+          .filter(i -> i % 5 == 0 && i % 2 == 0);
+
+        //when
+        CheckedFunction1<Integer, Boolean> mustEquals = i -> stringsSupplier()
+          .get(i)
+          .endsWith("DividedByTwoAndFiveWithoutRemainder");
+
+        //then
+        Property
+          .def("Every fifth element must equal to DividedByTwoAndFiveWithoutRemainder")
+          .forAll(multiplesOf5)
+          .suchThat(mustEquals)
+          .check(10_000, 1_000)
+          .assertIsSatisfied();
+    }
+}

jee7/pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>com.baeldung</groupId>
-    <artifactId>jee7schedule</artifactId>
+    <artifactId>jee7</artifactId>
     <version>1.0-SNAPSHOT</version>
     <description>JavaEE 7 Arquillian Archetype Sample</description>
     <packaging>war</packaging>

jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/pom.xml

@@ -0,0 +1,57 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.baeldung.javaeeannotations</groupId>
+  <artifactId>JavaEEAnnotationsSample</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <packaging>war</packaging>
+  <name>JavaEEAnnotationsSample</name>
+  <description>JavaEEAnnotationsSample</description>
+  
+  <dependencies>
+		
+	<dependency>
+	    <groupId>javax.annotation</groupId>
+	    <artifactId>javax.annotation-api</artifactId>
+	    <version>1.3</version>
+	</dependency>
+	
+	<dependency>
+	    <groupId>javax.servlet</groupId>
+	    <artifactId>javax.servlet-api</artifactId>
+	    <version>3.1.0</version>
+	</dependency>
+	
+	<dependency>
+	    <groupId>javax.servlet.jsp</groupId>
+	    <artifactId>jsp-api</artifactId>
+	    <version>2.1</version>
+	</dependency>
+		
+	</dependencies>
+	<build>
+		<pluginManagement>
+			<plugins>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-compiler-plugin</artifactId>
+					<version>3.2</version>
+					<configuration>
+						<source>1.7</source>
+						<target>1.7</target>
+					</configuration>
+				</plugin>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-war-plugin</artifactId>
+					<version>2.4</version>
+					<configuration>
+						<warSourceDirectory>src/main/webapp</warSourceDirectory>
+						<warName>SpringFieldConstructorInjection</warName>
+						<failOnMissingWebXml>false</failOnMissingWebXml>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
+		<finalName>JavaEEAnnotationsSample</finalName>
+	</build>
+</project>

jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/java/com/baeldung/javaeeannotations/AccountServlet.java

@@ -5,9 +5,6 @@ import java.io.PrintWriter;
 
 import javax.servlet.ServletConfig;
 import javax.servlet.ServletException;
-import javax.servlet.annotation.HttpConstraint;
-import javax.servlet.annotation.HttpMethodConstraint;
-import javax.servlet.annotation.ServletSecurity;
 import javax.servlet.annotation.WebInitParam;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServletRequest;
@@ -19,20 +16,20 @@ import javax.servlet.http.HttpServletResponse;
   urlPatterns = {"/account", "/bankAccount" }, 
   initParams = { @WebInitParam(name = "type", value = "savings") }
   )
-@ServletSecurity(
+/*@ServletSecurity(
   value = @HttpConstraint(rolesAllowed = {"admin"}),
   httpMethodConstraints = {@HttpMethodConstraint(value = "POST", rolesAllowed = {"admin"})}
-  )
+  )*/
 public class AccountServlet extends javax.servlet.http.HttpServlet {
 
     String accountType = null;
 
-    @Override
     public void init(ServletConfig config) throws ServletException {
         accountType = config.getInitParameter("type");
     }
 
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+
         PrintWriter writer = response.getWriter();
         writer.println("<html>Hello, I am an AccountServlet!</html>");
         writer.flush();

jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/java/com/baeldung/javaeeannotations/DepositRequestListener.java

@@ -0,0 +1,20 @@
+package com.baeldung.javaeeannotations;
+
+import javax.servlet.ServletRequestEvent;
+import javax.servlet.ServletRequestListener;
+import javax.servlet.annotation.WebListener;
+import javax.servlet.http.HttpServletRequest;
+
+@WebListener
+public class DepositRequestListener implements ServletRequestListener {
+    
+    public void requestDestroyed(ServletRequestEvent event) {
+                
+    }
+
+    public void requestInitialized(ServletRequestEvent evet) {
+       HttpServletRequest req =  (HttpServletRequest)evet.getServletRequest();
+       req.setAttribute("interest", new Double(10));
+    }
+
+}

jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/java/com/baeldung/javaeeannotations/LogInFilter.java

@@ -11,13 +11,13 @@ import javax.servlet.annotation.WebFilter;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-@WebFilter(
+/*@WebFilter(
   urlPatterns = "/bankAccount/*",
   filterName = "LogInFilter",
   description = "Filter all account transaction URLs"
-  )
+  )*/
 public class LogInFilter implements javax.servlet.Filter {
-    @Override
+    
     public void init(FilterConfig filterConfig) throws ServletException {
     }
 
@@ -29,8 +29,8 @@ public class LogInFilter implements javax.servlet.Filter {
         chain.doFilter(request, response);
     }
 
-    @Override
     public void destroy() {
+        
     }
 
 }

jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/webapp/index.jsp

@@ -7,8 +7,8 @@
 <title>My Account</title>
 </head>
 <body>
-<form action="account" method="post">
+<form action="bankAccount" method="post">
-        Width: <input type="text" size="5" name="dep"/> 
+        Amount: <input type="text" size="5" name="dep"/> 
         &nbsp;&nbsp;
         <input type="submit" value="Deposit" />
 </form>

jee7/src/main/java/com/baeldung/jaxws/EmployeeService.java

@@ -0,0 +1,32 @@
+package com.baeldung.jaxws;
+
+import java.util.List;
+
+import javax.jws.WebMethod;
+import javax.jws.WebService;
+
+import com.baeldung.jaxws.exception.EmployeeAlreadyExists;
+import com.baeldung.jaxws.exception.EmployeeNotFound;
+import com.baeldung.jaxws.model.Employee;
+
+@WebService
+public interface EmployeeService {
+
+    @WebMethod
+    Employee getEmployee(int id) throws EmployeeNotFound;
+
+    @WebMethod
+    Employee updateEmployee(int id, String name) throws EmployeeNotFound;
+
+    @WebMethod
+    boolean deleteEmployee(int id) throws EmployeeNotFound;
+
+    @WebMethod
+    Employee addEmployee(int id, String name) throws EmployeeAlreadyExists;
+
+    @WebMethod
+    int countEmployees();
+
+    @WebMethod
+    List<Employee> getAllEmployees();
+}

jee7/src/main/java/com/baeldung/jaxws/EmployeeServiceImpl.java

@@ -0,0 +1,49 @@
+package com.baeldung.jaxws;
+
+import java.util.List;
+
+import javax.inject.Inject;
+import javax.jws.WebMethod;
+import javax.jws.WebService;
+
+import com.baeldung.jaxws.exception.EmployeeAlreadyExists;
+import com.baeldung.jaxws.exception.EmployeeNotFound;
+import com.baeldung.jaxws.model.Employee;
+import com.baeldung.jaxws.repository.EmployeeRepository;
+
+@WebService(serviceName = "EmployeeService", endpointInterface = "com.baeldung.jaxws.EmployeeService")
+public class EmployeeServiceImpl implements EmployeeService {
+
+    @Inject
+    private EmployeeRepository employeeRepositoryImpl;
+
+    @WebMethod
+    public Employee getEmployee(int id) throws EmployeeNotFound {
+        return employeeRepositoryImpl.getEmployee(id);
+    }
+
+    @WebMethod
+    public Employee updateEmployee(int id, String name) throws EmployeeNotFound {
+        return employeeRepositoryImpl.updateEmployee(id, name);
+    }
+
+    @WebMethod
+    public boolean deleteEmployee(int id) throws EmployeeNotFound {
+        return employeeRepositoryImpl.deleteEmployee(id);
+    }
+
+    @WebMethod
+    public Employee addEmployee(int id, String name) throws EmployeeAlreadyExists {
+        return employeeRepositoryImpl.addEmployee(id, name);
+    }
+
+    @WebMethod
+    public int countEmployees() {
+        return employeeRepositoryImpl.count();
+    }
+
+    @WebMethod
+    public List<Employee> getAllEmployees() {
+        return employeeRepositoryImpl.getAllEmployees();
+    }
+}

jee7/src/main/java/com/baeldung/jaxws/config/EmployeeServicePublisher.java

@@ -0,0 +1,12 @@
+package com.baeldung.jaxws.config;
+
+import javax.xml.ws.Endpoint;
+
+import com.baeldung.jaxws.EmployeeServiceImpl;
+
+public class EmployeeServicePublisher {
+
+    public static void main(String[] args) {
+        Endpoint.publish("http://localhost:8080/employeeservice", new EmployeeServiceImpl());
+    }
+}

jee7/src/main/java/com/baeldung/jaxws/exception/EmployeeAlreadyExists.java

@@ -0,0 +1,19 @@
+package com.baeldung.jaxws.exception;
+
+import java.io.Serializable;
+
+import javax.xml.ws.WebFault;
+
+@WebFault
+public class EmployeeAlreadyExists extends Exception implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    public EmployeeAlreadyExists() {
+        super("This employee already exists");
+    }
+
+    public EmployeeAlreadyExists(String str) {
+        super(str);
+    }
+}

jee7/src/main/java/com/baeldung/jaxws/exception/EmployeeNotFound.java

@@ -0,0 +1,17 @@
+package com.baeldung.jaxws.exception;
+
+import javax.xml.ws.WebFault;
+import java.io.Serializable;
+
+@WebFault
+public class EmployeeNotFound extends Exception implements Serializable {
+
+    public EmployeeNotFound() {
+        super("The specified employee does not exist");
+    }
+
+    public EmployeeNotFound(String str) {
+        super(str);
+    }
+
+}

jee7/src/main/java/com/baeldung/jaxws/model/Employee.java

@@ -0,0 +1,34 @@
+package com.baeldung.jaxws.model;
+
+import java.io.Serializable;
+
+public class Employee implements Serializable {
+    private static final long serialVersionUID = 1L;
+    private int id;
+    private String firstName;
+
+    public Employee() {
+
+    }
+
+    public Employee(int id, String firstName) {
+        this.id = id;
+        this.firstName = firstName;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+}

jee7/src/main/java/com/baeldung/jaxws/repository/EmployeeRepository.java

@@ -0,0 +1,22 @@
+package com.baeldung.jaxws.repository;
+
+import java.util.List;
+
+import com.baeldung.jaxws.exception.EmployeeAlreadyExists;
+import com.baeldung.jaxws.exception.EmployeeNotFound;
+import com.baeldung.jaxws.model.Employee;
+
+public interface EmployeeRepository {
+
+    List<Employee> getAllEmployees();
+
+    Employee getEmployee(int id) throws EmployeeNotFound;
+
+    Employee updateEmployee(int id, String name) throws EmployeeNotFound;
+
+    boolean deleteEmployee(int id) throws EmployeeNotFound;
+
+    Employee addEmployee(int id, String name) throws EmployeeAlreadyExists;
+
+    int count();
+}

jee7/src/main/java/com/baeldung/jaxws/repository/EmployeeRepositoryImpl.java

@@ -0,0 +1,68 @@
+package com.baeldung.jaxws.repository;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.baeldung.jaxws.exception.EmployeeAlreadyExists;
+import com.baeldung.jaxws.exception.EmployeeNotFound;
+import com.baeldung.jaxws.model.Employee;
+
+public class EmployeeRepositoryImpl implements EmployeeRepository {
+    private List<Employee> employeeList;
+
+    public EmployeeRepositoryImpl() {
+        employeeList = new ArrayList<>();
+        employeeList.add(new Employee(1, "Jane"));
+        employeeList.add(new Employee(2, "Jack"));
+        employeeList.add(new Employee(3, "George"));
+    }
+
+    public List<Employee> getAllEmployees() {
+        return employeeList;
+    }
+
+    public Employee getEmployee(int id) throws EmployeeNotFound {
+        for (Employee emp : employeeList) {
+            if (emp.getId() == id) {
+                return emp;
+            }
+        }
+        throw new EmployeeNotFound();
+    }
+
+    public Employee updateEmployee(int id, String name) throws EmployeeNotFound {
+        for (Employee employee1 : employeeList) {
+            if (employee1.getId() == id) {
+                employee1.setId(id);
+                employee1.setFirstName(name);
+                return employee1;
+            }
+        }
+        throw new EmployeeNotFound();
+    }
+
+    public boolean deleteEmployee(int id) throws EmployeeNotFound {
+        for (Employee emp : employeeList) {
+            if (emp.getId() == id) {
+                employeeList.remove(emp);
+                return true;
+            }
+        }
+        throw new EmployeeNotFound();
+    }
+
+    public Employee addEmployee(int id, String name) throws EmployeeAlreadyExists {
+        for (Employee emp : employeeList) {
+            if (emp.getId() == id) {
+                throw new EmployeeAlreadyExists();
+            }
+        }
+        Employee employee = new Employee(id, name);
+        employeeList.add(employee);
+        return employee;
+    }
+
+    public int count() {
+        return employeeList.size();
+    }
+}

jee7/src/test/java/com/baeldung/jaxws/EmployeeServiceLiveTest.java

@@ -0,0 +1,110 @@
+package com.baeldung.jaxws;
+
+import static org.junit.Assert.assertEquals;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+import javax.xml.ws.Service;
+
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.arquillian.test.api.ArquillianResource;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.asset.EmptyAsset;
+import org.jboss.shrinkwrap.api.spec.WebArchive;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import com.baeldung.jaxws.exception.EmployeeAlreadyExists;
+import com.baeldung.jaxws.exception.EmployeeNotFound;
+import com.baeldung.jaxws.model.Employee;
+import com.baeldung.jaxws.repository.EmployeeRepository;
+
+@RunWith(Arquillian.class)
+public class EmployeeServiceLiveTest {
+
+    private static final String APP_NAME = "jee7";
+    private static final String WSDL_PATH = "EmployeeService?wsdl";
+    private static QName SERVICE_NAME = new QName("http://jaxws.baeldung.com/", "EmployeeService");
+    private static URL wsdlUrl;
+
+    @ArquillianResource
+    private URL deploymentUrl;
+
+    private EmployeeService employeeServiceProxy;
+
+    @Deployment(testable = false)
+    public static WebArchive createDeployment() {
+        return ShrinkWrap.create(WebArchive.class, APP_NAME + ".war").addPackage(EmployeeService.class.getPackage()).addPackage(Employee.class.getPackage()).addPackage(EmployeeNotFound.class.getPackage()).addPackage(EmployeeRepository.class.getPackage())
+                .addAsWebInfResource(EmptyAsset.INSTANCE, "beans.xml");
+    }
+
+    @Before
+    public void setUp() {
+        try {
+            wsdlUrl = new URL(deploymentUrl, WSDL_PATH);
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+
+        Service service = Service.create(wsdlUrl, SERVICE_NAME);
+        employeeServiceProxy = service.getPort(EmployeeService.class);
+    }
+
+    @Test
+    public void givenEmployees_whenGetCount_thenCorrectNumberOfEmployeesReturned() {
+        int employeeCount = employeeServiceProxy.countEmployees();
+        List<Employee> employeeList = employeeServiceProxy.getAllEmployees();
+        assertEquals(employeeList.size(), employeeCount);
+    }
+
+    @Test
+    public void givenEmployees_whenGetAvailableEmployee_thenCorrectEmployeeReturned() throws EmployeeNotFound {
+        Employee employee = employeeServiceProxy.getEmployee(2);
+        assertEquals(employee.getFirstName(), "Jack");
+    }
+
+    @Test(expected = EmployeeNotFound.class)
+    public void givenEmployees_whenGetNonAvailableEmployee_thenEmployeeNotFoundException() throws EmployeeNotFound {
+        employeeServiceProxy.getEmployee(20);
+    }
+
+    @Test
+    public void givenEmployees_whenAddNewEmployee_thenEmployeeCountIncreased() throws EmployeeAlreadyExists {
+        int employeeCount = employeeServiceProxy.countEmployees();
+        employeeServiceProxy.addEmployee(4, "Anna");
+        assertEquals(employeeServiceProxy.countEmployees(), employeeCount + 1);
+    }
+
+    @Test(expected = EmployeeAlreadyExists.class)
+    public void givenEmployees_whenAddAlreadyExistingEmployee_thenEmployeeAlreadyExistsException() throws EmployeeAlreadyExists {
+        employeeServiceProxy.addEmployee(1, "Anna");
+    }
+
+    @Test
+    public void givenEmployees_whenUpdateExistingEmployee_thenUpdatedEmployeeReturned() throws EmployeeNotFound {
+        Employee updated = employeeServiceProxy.updateEmployee(1, "Joan");
+        assertEquals(updated.getFirstName(), "Joan");
+    }
+
+    @Test(expected = EmployeeNotFound.class)
+    public void givenEmployees_whenUpdateNonExistingEmployee_thenEmployeeNotFoundException() throws EmployeeNotFound {
+        employeeServiceProxy.updateEmployee(20, "Joan");
+    }
+
+    @Test
+    public void givenEmployees_whenDeleteExistingEmployee_thenSuccessReturned() throws EmployeeNotFound {
+        boolean deleteEmployee = employeeServiceProxy.deleteEmployee(3);
+        assertEquals(deleteEmployee, true);
+    }
+
+    @Test(expected = EmployeeNotFound.class)
+    public void givenEmployee_whenDeleteNonExistingEmployee_thenEmployeeNotFoundException() throws EmployeeNotFound {
+        employeeServiceProxy.deleteEmployee(20);
+    }
+
+}

jee7/src/test/java/com/baeldung/timer/ScheduleTimerBeanIntegrationTest.java

@@ -19,23 +19,25 @@ import static com.jayway.awaitility.Awaitility.to;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.equalTo;
 
-
 @RunWith(Arquillian.class)
 public class ScheduleTimerBeanIntegrationTest {
 
-    final static long TIMEOUT = 5000l;
+    private final static long TIMEOUT = 5000l;
-    final static long TOLERANCE = 1000l;
+    private final static long TOLERANCE = 1000l;
 
-    @Inject
+    @Inject TimerEventListener timerEventListener;
-    TimerEventListener timerEventListener;
 
     @Deployment
     public static WebArchive deploy() {
-        File[] jars = Maven.resolver().loadPomFromFile("pom.xml")
+        File[] jars = Maven
+          .resolver()
+          .loadPomFromFile("pom.xml")
           .resolve("com.jayway.awaitility:awaitility")
-                .withTransitivity().asFile();
+          .withTransitivity()
+          .asFile();
 
-        return ShrinkWrap.create(WebArchive.class)
+        return ShrinkWrap
+          .create(WebArchive.class)
           .addAsLibraries(jars)
           .addClasses(WithinWindowMatcher.class, TimerEvent.class, TimerEventListener.class, ScheduleTimerBean.class);
     }
@@ -46,9 +48,15 @@ public class ScheduleTimerBeanIntegrationTest {
         Awaitility.setDefaultTimeout(30, TimeUnit.SECONDS);
         await().untilCall(to(timerEventListener.getEvents()).size(), equalTo(3));
 
-        TimerEvent firstEvent = timerEventListener.getEvents().get(0);
+        TimerEvent firstEvent = timerEventListener
-        TimerEvent secondEvent = timerEventListener.getEvents().get(1);
+          .getEvents()
-        TimerEvent thirdEvent = timerEventListener.getEvents().get(2);
+          .get(0);
+        TimerEvent secondEvent = timerEventListener
+          .getEvents()
+          .get(1);
+        TimerEvent thirdEvent = timerEventListener
+          .getEvents()
+          .get(2);
 
         long delay = secondEvent.getTime() - firstEvent.getTime();
         assertThat(delay, Matchers.is(WithinWindowMatcher.withinWindow(TIMEOUT, TOLERANCE)));

jhipster/.editorconfig

@@ -0,0 +1,24 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+
+root = true
+
+[*]
+
+# Change these settings to your own preference
+indent_style = space
+indent_size = 4
+
+# We recommend you to keep these unchanged
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[{package,bower}.json]
+indent_style = space
+indent_size = 2

jhipster/.gitattributes

@@ -0,0 +1,22 @@
+# All text files should have the "lf" (Unix) line endings
+* text eol=lf
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.java text
+*.js text
+*.css text
+*.html text
+
+# Denote all files that are truly binary and should not be modified.
+*.png binary
+*.jpg binary
+*.jar binary
+*.pdf binary
+*.eot binary
+*.ttf binary
+*.gzip binary
+*.gz binary
+*.ai binary
+*.eps binary
+*.swf binary

jhipster/.gitignore

@@ -0,0 +1,143 @@
+######################
+# Project Specific
+######################
+/src/main/webapp/content/css/main.css
+/target/www/**
+/src/test/javascript/coverage/
+/src/test/javascript/PhantomJS*/
+
+######################
+# Node
+######################
+/node/
+node_tmp/
+node_modules/
+npm-debug.log.*
+
+######################
+# SASS
+######################
+.sass-cache/
+
+######################
+# Eclipse
+######################
+*.pydevproject
+.project
+.metadata
+tmp/
+tmp/**/*
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.classpath
+.settings/
+.loadpath
+.factorypath
+/src/main/resources/rebel.xml
+
+# External tool builders
+.externalToolBuilders/**
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# CDT-specific
+.cproject
+
+# PDT-specific
+.buildpath
+
+######################
+# Intellij
+######################
+.idea/
+*.iml
+*.iws
+*.ipr
+*.ids
+*.orig
+
+######################
+# Visual Studio Code
+######################
+.vscode/
+
+######################
+# Maven
+######################
+/log/
+/target/
+
+######################
+# Gradle
+######################
+.gradle/
+/build/
+
+######################
+# Package Files
+######################
+*.jar
+*.war
+*.ear
+*.db
+
+######################
+# Windows
+######################
+# Windows image file caches
+Thumbs.db
+
+# Folder config file
+Desktop.ini
+
+######################
+# Mac OSX
+######################
+.DS_Store
+.svn
+
+# Thumbnails
+._*
+
+# Files that might appear on external disk
+.Spotlight-V100
+.Trashes
+
+######################
+# Directories
+######################
+/bin/
+/deploy/
+
+######################
+# Logs
+######################
+*.log
+
+######################
+# Others
+######################
+*.class
+*.*~
+*~
+.merge_file*
+
+######################
+# Gradle Wrapper
+######################
+!gradle/wrapper/gradle-wrapper.jar
+
+######################
+# Maven Wrapper
+######################
+!.mvn/wrapper/maven-wrapper.jar
+
+######################
+# ESLint
+######################
+.eslintcache
+/.apt_generated/

jhipster/.gitlab-ci.yml

@@ -0,0 +1,56 @@
+
+cache:
+    key: "$CI_BUILD_REF_NAME"
+    paths:
+        - node_modules
+        - .maven
+stages:
+    - build
+    - test
+    - package
+
+before_script:
+    - export MAVEN_USER_HOME=`pwd`/.maven
+    - chmod +x mvnw
+    - ./mvnw com.github.eirslett:frontend-maven-plugin:install-node-and-npm -DnodeVersion=v6.10.0 -DnpmVersion=4.3.0
+    - ./mvnw com.github.eirslett:frontend-maven-plugin:npm
+
+maven-build:
+    stage: build
+    script: ./mvnw compile -Dmaven.repo.local=$MAVEN_USER_HOME
+
+maven-test:
+    stage: test
+    script:
+        - ./mvnw test -Dmaven.repo.local=$MAVEN_USER_HOME
+    artifacts:
+        paths:
+            - target/surefire-reports/*
+maven-front-test:
+    stage: test
+    script:
+        - ./mvnw com.github.eirslett:frontend-maven-plugin:npm -Dfrontend.yarn.arguments=test
+    artifacts:
+        paths:
+            - target/test-results/karma/*
+gatling-test:
+    stage: test
+    allow_failure: true
+    script:
+        - ./mvnw gatling:execute -Dmaven.repo.local=$MAVEN_USER_HOME
+    before_script:
+        - export MAVEN_USER_HOME=`pwd`/.maven
+        - chmod +x mvnw
+        - ./mvnw com.github.eirslett:frontend-maven-plugin:install-node-and-npm -DnodeVersion=v6.10.0 -DnpmVersion=4.3.0
+        - ./mvnw com.github.eirslett:frontend-maven-plugin:npm
+        - ./mvnw &
+    artifacts:
+        paths:
+            - target/gatling/*
+maven-package:
+    stage: package
+    script:
+        - ./mvnw package -Pprod -DskipTests -Dmaven.repo.local=$MAVEN_USER_HOME
+    artifacts:
+        paths:
+            - target/*.war

jhipster/.jhipster/Comment.json

@@ -0,0 +1,39 @@
+{
+    "fluentMethods": true,
+    "relationships": [
+        {
+            "relationshipName": "post",
+            "otherEntityName": "post",
+            "relationshipType": "many-to-one",
+            "relationshipValidateRules": [
+                "required"
+            ],
+            "otherEntityField": "title"
+        }
+    ],
+    "fields": [
+        {
+            "fieldName": "text",
+            "fieldType": "String",
+            "fieldValidateRules": [
+                "required",
+                "minlength",
+                "maxlength"
+            ],
+            "fieldValidateRulesMinlength": "10",
+            "fieldValidateRulesMaxlength": "100"
+        },
+        {
+            "fieldName": "creationDate",
+            "fieldType": "LocalDate",
+            "fieldValidateRules": [
+                "required"
+            ]
+        }
+    ],
+    "changelogDate": "20170316224021",
+    "dto": "no",
+    "service": "no",
+    "entityTableName": "comment",
+    "pagination": "infinite-scroll"
+}

jhipster/.jhipster/Post.json

@@ -0,0 +1,52 @@
+{
+    "fluentMethods": true,
+    "relationships": [
+        {
+            "relationshipName": "creator",
+            "otherEntityName": "user",
+            "relationshipType": "many-to-one",
+            "relationshipValidateRules": [
+                "required"
+            ],
+            "otherEntityField": "login",
+            "ownerSide": true,
+            "otherEntityRelationshipName": "post"
+        }
+    ],
+    "fields": [
+        {
+            "fieldName": "title",
+            "fieldType": "String",
+            "fieldValidateRules": [
+                "required",
+                "minlength",
+                "maxlength"
+            ],
+            "fieldValidateRulesMinlength": "10",
+            "fieldValidateRulesMaxlength": "100"
+        },
+        {
+            "fieldName": "content",
+            "fieldType": "String",
+            "fieldValidateRules": [
+                "required",
+                "minlength",
+                "maxlength"
+            ],
+            "fieldValidateRulesMinlength": "10",
+            "fieldValidateRulesMaxlength": "1000"
+        },
+        {
+            "fieldName": "creationDate",
+            "fieldType": "LocalDate",
+            "fieldValidateRules": [
+                "required"
+            ]
+        }
+    ],
+    "changelogDate": "20170316223211",
+    "dto": "no",
+    "service": "no",
+    "entityTableName": "post",
+    "pagination": "infinite-scroll"
+}

jhipster/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1 @@
+distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.3.9/apache-maven-3.3.9-bin.zip

jhipster/.travis.yml

@@ -0,0 +1,41 @@
+os:
+  - linux
+services:
+  - docker
+language: node_js
+node_js:
+  - "6.10.0"
+jdk:
+  - oraclejdk8
+sudo: false
+cache:
+  directories:
+    - node
+    - node_modules
+    - $HOME/.m2
+env:
+  global:
+    - NODE_VERSION=6.10.0
+    - SPRING_OUTPUT_ANSI_ENABLED=ALWAYS
+    - SPRING_JPA_SHOW_SQL=false
+before_install:
+  - jdk_switcher use oraclejdk8
+  - java -version
+  - sudo /etc/init.d/mysql stop
+  - sudo /etc/init.d/postgresql stop
+  - nvm install $NODE_VERSION
+  - npm install -g npm
+  - node -v
+  - npm -v
+install:
+  - npm install
+script:
+  - chmod +x mvnw
+  - ./mvnw clean test
+  - npm test
+  - ./mvnw package -Pprod -DskipTests
+notifications:
+  webhooks:
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false

jhipster/.yo-rc.json

@@ -0,0 +1,36 @@
+{
+  "generator-jhipster": {
+    "jhipsterVersion": "4.0.8",
+    "baseName": "baeldung",
+    "packageName": "com.baeldung",
+    "packageFolder": "com/baeldung",
+    "serverPort": "8080",
+    "authenticationType": "jwt",
+    "hibernateCache": "ehcache",
+    "clusteredHttpSession": false,
+    "websocket": false,
+    "databaseType": "sql",
+    "devDatabaseType": "h2Disk",
+    "prodDatabaseType": "mysql",
+    "searchEngine": false,
+    "messageBroker": false,
+    "serviceDiscoveryType": false,
+    "buildTool": "maven",
+    "enableSocialSignIn": false,
+    "jwtSecretKey": "e1d4b69d3f953e3fa622121e882e6f459ca20ca4",
+    "clientFramework": "angular2",
+    "useSass": true,
+    "clientPackageManager": "npm",
+    "applicationType": "monolith",
+    "testFrameworks": [
+      "gatling",
+      "protractor"
+    ],
+    "jhiPrefix": "jhi",
+    "enableTranslation": true,
+    "nativeLanguage": "en",
+    "languages": [
+      "en"
+    ]
+  }
+}

jhipster/Jenkinsfile

@@ -0,0 +1,50 @@
+#!/usr/bin/env groovy
+
+node {
+    stage('checkout') {
+        checkout scm
+    }
+
+    stage('check java') {
+        sh "java -version"
+    }
+
+    stage('clean') {
+        sh "chmod +x mvnw"
+        sh "./mvnw clean"
+    }
+
+    stage('install tools') {
+        sh "./mvnw com.github.eirslett:frontend-maven-plugin:install-node-and-npm -DnodeVersion=v6.10.0 -DnpmVersion=4.3.0"
+    }
+
+    stage('npm install') {
+        sh "./mvnw com.github.eirslett:frontend-maven-plugin:npm"
+    }
+
+    stage('backend tests') {
+        try {
+            sh "./mvnw test"
+        } catch(err) {
+            throw err
+        } finally {
+            junit '**/target/surefire-reports/TEST-*.xml'
+        }
+    }
+
+    stage('frontend tests') {
+        try {
+            sh "./mvnw com.github.eirslett:frontend-maven-plugin:npm -Dfrontend.yarn.arguments=test"
+        } catch(err) {
+            throw err
+        } finally {
+            junit '**/target/test-results/karma/TESTS-*.xml'
+        }
+    }
+
+    stage('packaging') {
+        sh "./mvnw package -Pprod -DskipTests"
+        archiveArtifacts artifacts: '**/target/*.war', fingerprint: true
+    }
+
+}

jhipster/README.md

@@ -0,0 +1,153 @@
+# baeldung
+This application was generated using JHipster 4.0.8, you can find documentation and help at [https://jhipster.github.io/documentation-archive/v4.0.8](https://jhipster.github.io/documentation-archive/v4.0.8).
+
+## Development
+
+Before you can build this project, you must install and configure the following dependencies on your machine:
+
+1. [Node.js][]: We use Node to run a development web server and build the project.
+   Depending on your system, you can install Node either from source or as a pre-packaged bundle.
+
+After installing Node, you should be able to run the following command to install development tools.
+You will only need to run this command when dependencies change in [package.json](package.json).
+
+    npm install
+
+We use npm scripts and [Webpack][] as our build system.
+
+
+Run the following commands in two separate terminals to create a blissful development experience where your browser
+auto-refreshes when files change on your hard drive.
+
+    ./mvnw
+    npm start
+
+[Npm][] is also used to manage CSS and JavaScript dependencies used in this application. You can upgrade dependencies by
+specifying a newer version in [package.json](package.json). You can also run `npm update` and `npm install` to manage dependencies.
+Add the `help` flag on any command to see how you can use it. For example, `npm help update`.
+
+The `npm run` command will list all of the scripts available to run for this project.
+
+### Managing dependencies
+
+For example, to add [Leaflet][] library as a runtime dependency of your application, you would run following command:
+
+    npm install --save --save-exact leaflet
+
+To benefit from TypeScript type definitions from [DefinitelyTyped][] repository in development, you would run following command:
+
+    npm install --save-dev --save-exact @types/leaflet
+
+Then you would import the JS and CSS files specified in library's installation instructions so that [Webpack][] knows about them:
+
+Edit [src/main/webapp/app/vendor.ts](src/main/webapp/app/vendor.ts) file:
+~~~
+import 'leaflet/dist/leaflet.js';
+~~~
+
+Edit [src/main/webapp/content/css/vendor.css](src/main/webapp/content/css/vendor.css) file:
+~~~
+@import '~leaflet/dist/leaflet.css';
+~~~
+
+Note: there are still few other things remaining to do for Leaflet that we won't detail here.
+
+For further instructions on how to develop with JHipster, have a look at [Using JHipster in development][].
+
+### Using angular-cli
+
+You can also use [Angular CLI][] to generate some custom client code.
+
+For example, the following command:
+
+    ng generate component my-component
+
+will generate few files:
+
+    create src/main/webapp/app/my-component/my-component.component.html
+    create src/main/webapp/app/my-component/my-component.component.ts
+    update src/main/webapp/app/app.module.ts
+
+## Building for production
+
+To optimize the baeldung application for production, run:
+
+    ./mvnw -Pprod clean package
+
+This will concatenate and minify the client CSS and JavaScript files. It will also modify `index.html` so it references these new files.
+To ensure everything worked, run:
+
+    java -jar target/*.war
+
+Then navigate to [http://localhost:8080](http://localhost:8080) in your browser.
+
+Refer to [Using JHipster in production][] for more details.
+
+## Testing
+
+To launch your application's tests, run:
+
+    ./mvnw clean test
+
+### Client tests
+
+Unit tests are run by [Karma][] and written with [Jasmine][]. They're located in [src/test/javascript/](src/test/javascript/) and can be run with:
+
+    npm test
+
+UI end-to-end tests are powered by [Protractor][], which is built on top of WebDriverJS. They're located in [src/test/javascript/e2e](src/test/javascript/e2e)
+and can be run by starting Spring Boot in one terminal (`./mvnw spring-boot:run`) and running the tests (`gulp itest`) in a second one.
+### Other tests
+
+Performance tests are run by [Gatling][] and written in Scala. They're located in [src/test/gatling](src/test/gatling) and can be run with:
+
+    ./mvnw gatling:execute
+
+For more information, refer to the [Running tests page][].
+
+## Using Docker to simplify development (optional)
+
+You can use Docker to improve your JHipster development experience. A number of docker-compose configuration are available in the [src/main/docker](src/main/docker) folder to launch required third party services.
+For example, to start a mysql database in a docker container, run:
+
+    docker-compose -f src/main/docker/mysql.yml up -d
+
+To stop it and remove the container, run:
+
+    docker-compose -f src/main/docker/mysql.yml down
+
+You can also fully dockerize your application and all the services that it depends on.
+To achieve this, first build a docker image of your app by running:
+
+    ./mvnw package -Pprod docker:build
+
+Then run:
+
+    docker-compose -f src/main/docker/app.yml up -d
+
+For more information refer to [Using Docker and Docker-Compose][], this page also contains information on the docker-compose sub-generator (`yo jhipster:docker-compose`), which is able to generate docker configurations for one or several JHipster applications.
+
+## Continuous Integration (optional)
+
+To configure CI for your project, run the ci-cd sub-generator (`yo jhipster:ci-cd`), this will let you generate configuration files for a number of Continuous Integration systems. Consult the [Setting up Continuous Integration][] page for more information.
+
+[JHipster Homepage and latest documentation]: https://jhipster.github.io
+[JHipster 4.0.8 archive]: https://jhipster.github.io/documentation-archive/v4.0.8
+
+[Using JHipster in development]: https://jhipster.github.io/documentation-archive/v4.0.8/development/
+[Using Docker and Docker-Compose]: https://jhipster.github.io/documentation-archive/v4.0.8/docker-compose
+[Using JHipster in production]: https://jhipster.github.io/documentation-archive/v4.0.8/production/
+[Running tests page]: https://jhipster.github.io/documentation-archive/v4.0.8/running-tests/
+[Setting up Continuous Integration]: https://jhipster.github.io/documentation-archive/v4.0.8/setting-up-ci/
+
+[Gatling]: http://gatling.io/
+[Node.js]: https://nodejs.org/
+[Yarn]: https://yarnpkg.org/
+[Webpack]: https://webpack.github.io/
+[Angular CLI]: https://cli.angular.io/
+[BrowserSync]: http://www.browsersync.io/
+[Karma]: http://karma-runner.github.io/
+[Jasmine]: http://jasmine.github.io/2.0/introduction.html
+[Protractor]: https://angular.github.io/protractor/
+[Leaflet]: http://leafletjs.com/
+[DefinitelyTyped]: http://definitelytyped.org/

jhipster/angular-cli.json

@@ -0,0 +1,55 @@
+{
+  "project": {
+    "version": "1.0.0-beta.24",
+    "name": "baeldung"
+  },
+  "apps": [
+    {
+      "root": "src/main/webapp/",
+      "outDir": "target/www/app",
+      "assets": [
+        "content",
+        "favicon.ico"
+      ],
+      "index": "index.html",
+      "main": "app/app.main.ts",
+      "test": "",
+      "tsconfig": "../../../tsconfig.json",
+      "prefix": "jhi",
+      "mobile": false,
+      "styles": [
+        "content/css/main.css"
+      ],
+      "scripts": [],
+      "environments": {}
+    }
+  ],
+  "addons": [],
+  "packages": [],
+  "e2e": {
+    "protractor": {
+      "config": "src/test/javascript/protractor.conf.js"
+    }
+  },
+  "test": {
+    "karma": {
+      "config": "src/test/javascript/karma.conf.js"
+    }
+  },
+  "defaults": {
+    "styleExt": "css",
+    "prefixInterfaces": false,
+    "inline": {
+      "style": true,
+      "template": false
+    },
+    "spec": {
+      "class": false,
+      "component": false,
+      "directive": false,
+      "module": false,
+      "pipe": false,
+      "service": false
+    }
+  }
+}

jhipster/circle.yml

@@ -0,0 +1,25 @@
+machine:
+    services:
+        - docker
+    java:
+        version: oraclejdk8
+    node:
+        version: 6.10.0
+dependencies:
+    cache_directories:
+        - node
+        - node_modules
+        - ~/.m2
+    override:
+        - java -version
+        - npm install -g npm
+        - node -v
+        - npm -v
+        - java -version
+        - npm install
+test:
+    override:
+        - chmod +x mvnw
+        - ./mvnw clean test
+        - npm test
+        - ./mvnw package -Pprod -DskipTests

jhipster/mvnw

@@ -0,0 +1,233 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven2 Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+           #
+           # Look for the Apple JDKs first to preserve the existing behaviour, and then look
+           # for the new JDKs provided by Oracle.
+           #
+           if [ -z "$JAVA_HOME" ] && [ -L /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK ] ; then
+             #
+             # Apple JDKs
+             #
+             export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home
+           fi
+
+           if [ -z "$JAVA_HOME" ] && [ -L /System/Library/Java/JavaVirtualMachines/CurrentJDK ] ; then
+             #
+             # Apple JDKs
+             #
+             export JAVA_HOME=/System/Library/Java/JavaVirtualMachines/CurrentJDK/Contents/Home
+           fi
+
+           if [ -z "$JAVA_HOME" ] && [ -L "/Library/Java/JavaVirtualMachines/CurrentJDK" ] ; then
+             #
+             # Oracle JDKs
+             #
+             export JAVA_HOME=/Library/Java/JavaVirtualMachines/CurrentJDK/Contents/Home
+           fi
+
+           if [ -z "$JAVA_HOME" ] && [ -x "/usr/libexec/java_home" ]; then
+             #
+             # Apple JDKs
+             #
+             export JAVA_HOME=`/usr/libexec/java_home`
+           fi
+           ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Migwn, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+  # TODO classpath?
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`which java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+fi
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+  local basedir=$(pwd)
+  local wdir=$(pwd)
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    wdir=$(cd "$wdir/.."; pwd)
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-$(find_maven_basedir)}
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} "$@"

jhipster/mvnw.cmd

@@ -0,0 +1,145 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven2 Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+set MAVEN_CMD_LINE_ARGS=%*
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+
+set WRAPPER_JAR="".\.mvn\wrapper\maven-wrapper.jar""
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CMD_LINE_ARGS%
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

jhipster/package.json

@@ -0,0 +1,112 @@
+{
+  "name": "baeldung",
+  "version": "0.0.0",
+  "description": "Description for baeldung",
+  "private": true,
+  "cacheDirectories": [
+    "node_modules"
+  ],
+  "dependencies": {
+    "@angular/common": "2.4.7",
+    "@angular/compiler": "2.4.7",
+    "@angular/core": "2.4.7",
+    "@angular/forms": "2.4.7",
+    "@angular/http": "2.4.7",
+    "@angular/platform-browser": "2.4.7",
+    "@angular/platform-browser-dynamic": "2.4.7",
+    "@angular/router": "3.4.7",
+    "@ng-bootstrap/ng-bootstrap": "1.0.0-alpha.20",
+    "angular2-infinite-scroll": "0.3.0",
+    "bootstrap": "4.0.0-alpha.6",
+    "font-awesome": "4.7.0",
+    "angular2-cookie": "1.2.6",
+    "core-js": "2.4.1",
+    "jquery": "3.1.1",
+    "ng-jhipster": "0.1.9",
+    "ng2-webstorage": "1.5.0",
+    "reflect-metadata": "0.1.9",
+    "rxjs": "5.1.0",
+    "swagger-ui": "2.2.10",
+    "tether": "1.4.0",
+    "zone.js": "0.7.6"
+  },
+  "devDependencies": {
+    "@angular/cli": "1.0.0-beta.28.3",
+    "@types/jasmine": "2.5.42",
+    "@types/node": "7.0.5",
+    "@types/selenium-webdriver": "2.53.39",
+    "add-asset-html-webpack-plugin": "1.0.2",
+    "angular2-template-loader": "0.6.2",
+    "awesome-typescript-loader": "3.0.7",
+    "browser-sync": "2.18.7",
+    "browser-sync-webpack-plugin": "1.1.4",
+    "codelyzer": "2.0.0",
+    "copy-webpack-plugin": "4.0.1",
+    "css-loader": "0.26.1",
+    "del": "2.2.2",
+    "event-stream": "3.3.4",
+    "exports-loader": "0.6.3",
+    "extract-text-webpack-plugin": "2.0.0-beta.5",
+    "file-loader": "0.10.0",
+    "generator-jhipster": "4.0.8",
+    "html-webpack-plugin": "2.28.0",
+    "image-webpack-loader": "3.2.0",
+    "jasmine-core": "2.5.2",
+    "jasmine-reporters": "2.2.0",
+    "karma": "1.4.1",
+    "karma-chrome-launcher": "2.0.0",
+    "karma-coverage": "1.1.1",
+    "karma-intl-shim": "1.0.3",
+    "karma-jasmine": "1.1.0",
+    "karma-junit-reporter": "1.2.0",
+    "karma-phantomjs-launcher": "1.0.2",
+    "karma-remap-istanbul": "0.6.0",
+    "karma-sourcemap-loader": "0.3.7",
+    "karma-webpack": "2.0.2",
+    "lazypipe": "1.0.1",
+    "lodash": "4.17.4",
+    "map-stream": "0.0.6",
+    "phantomjs-prebuilt": "2.1.14",
+    "protractor": "5.1.1",
+    "protractor-jasmine2-screenshot-reporter": "0.3.3",
+    "ts-node": "2.1.0",
+    "proxy-middleware": "0.15.0",
+    "raw-loader": "0.5.1",
+    "run-sequence": "1.2.2",
+    "sourcemap-istanbul-instrumenter-loader": "0.2.0",
+    "string-replace-webpack-plugin": "0.0.5",
+    "style-loader": "0.13.1",
+    "to-string-loader": "1.1.5",
+    "tslint": "4.4.2",
+    "tslint-loader": "3.4.1",
+    "typescript": "2.1.6",
+    "webpack": "2.2.1",
+    "webpack-dev-server": "2.3.0",
+    "webpack-merge": "2.6.1",
+    "webpack-visualizer-plugin": "0.1.10",
+    "write-file-webpack-plugin": "3.4.2",
+    "xml2js": "0.4.17",
+    "sass-loader": "5.0.1",
+    "node-sass": "4.5.0",
+    "postcss-loader": "1.3.0",
+    "yargs": "6.6.0"
+  },
+  "engines": {
+    "node": ">=6.9.0"
+  },
+  "scripts": {
+    "lint": "tslint 'src/main/webapp/app/**/*.ts' --force",
+    "lint:fix": "tslint 'src/main/webapp/app/**/*.ts' --fix --force",
+    "tsc": "tsc",
+    "tsc:w": "tsc -w",
+    "start": "npm run webpack:dev",
+    "webpack:build": "webpack --config webpack/webpack.vendor.js && webpack --config webpack/webpack.dev.js",
+    "webpack:build:dev": "webpack --config webpack/webpack.dev.js",
+    "webpack:dev": "webpack-dev-server --config webpack/webpack.dev.js  --progress --inline --hot --profile --port=9060",
+    "webpack:prod": "npm test && webpack -p --config webpack/webpack.vendor.js && webpack -p --config webpack/webpack.prod.js",
+    "test": "npm run lint && karma start src/test/javascript/karma.conf.js",
+    "test:watch": "karma start --watch",
+    "e2e": "protractor src/test/javascript/protractor.conf.js",
+    "postinstall": "webdriver-manager update && npm run webpack:build"
+  }
+}