Merge branch 'master' into BAEL-2214

algorithms/roundUpToHundred/.gitignore

@@ -0,0 +1 @@
+/bin/

algorithms/roundUpToHundred/src/com/java/src/RoundUpToHundred.java

@@ -0,0 +1,20 @@
+package com.java.src;
+
+import java.util.Scanner;
+
+public class RoundUpToHundred {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        double input = scanner.nextDouble();
+        scanner.close();
+
+        RoundUpToHundred.round(input);
+    }
+
+    static long round(double input) {
+        long i = (long) Math.ceil(input);
+        return ((i + 99) / 100) * 100;
+    };
+
+}

algorithms/roundUpToHundred/src/com/java/src/RoundUpToHundredTest.java

@@ -0,0 +1,14 @@
+package com.java.src;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class RoundUpToHundredTest {
+    @Test
+    public void givenInput_whenRound_thenRoundUpToTheNearestHundred() {
+        assertEquals("Rounded up to hundred", 100, RoundUpToHundred.round(99));
+        assertEquals("Rounded up to three hundred ", 300, RoundUpToHundred.round(200.2));
+        assertEquals("Returns same rounded value", 400, RoundUpToHundred.round(400));
+    }
+}

core-java-io/src/test/java/com/baeldung/file/FileOperationsManualTest.java

@@ -1,6 +1,7 @@
 package com.baeldung.file;
 
 import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOUtils;
 import org.hamcrest.CoreMatchers;
 import org.hamcrest.Matchers;
 import org.junit.Test;
@@ -120,4 +121,14 @@ public class FileOperationsManualTest {
 
         return resultStringBuilder.toString();
     }
+    
+    @Test
+    public void givenFileName_whenUsingIOUtils_thenFileData() throws IOException {
+        String expectedData = "This is a content of the file";
+
+        FileInputStream fis = new FileInputStream("src/test/resources/fileToRead.txt");
+        String data = IOUtils.toString(fis, "UTF-8");
+        
+        assertEquals(expectedData, data.trim());
+    }
 }

core-java/src/main/java/com/baeldung/heapdump/HeapDump.java

@@ -0,0 +1,25 @@
+package com.baeldung.heapdump;
+
+import com.sun.management.HotSpotDiagnosticMXBean;
+
+import javax.management.MBeanServer;
+
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+import java.nio.file.Paths;
+
+public class HeapDump {
+
+    public static void dumpHeap(String filePath, boolean live) throws IOException {
+        MBeanServer server = ManagementFactory.getPlatformMBeanServer();
+        HotSpotDiagnosticMXBean mxBean = ManagementFactory.newPlatformMXBeanProxy(
+          server, "com.sun.management:type=HotSpotDiagnostic", HotSpotDiagnosticMXBean.class);
+        mxBean.dumpHeap(filePath, live);
+    }
+
+    public static void main(String[] args) throws IOException {
+        String file = Paths.get("dump.hprof").toFile().getPath();
+
+        dumpHeap(file, true);
+    }
+}

core-java/src/main/java/com/baeldung/passwordhashing/PBKDF2Hasher.java

@@ -0,0 +1,149 @@
+package com.baeldung.passwordhashing;
+
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.KeySpec;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.PBEKeySpec;
+
+/**
+ * Hash passwords for storage, and test passwords against password tokens.
+ *
+ * Instances of this class can be used concurrently by multiple threads.
+ *
+ * @author erickson
+ * @see <a href="http://stackoverflow.com/a/2861125/3474">StackOverflow</a>
+ */
+public final class PBKDF2Hasher
+{
+
+  /**
+   * Each token produced by this class uses this identifier as a prefix.
+   */
+  public static final String ID = "$31$";
+
+  /**
+   * The minimum recommended cost, used by default
+   */
+  public static final int DEFAULT_COST = 16;
+
+  private static final String ALGORITHM = "PBKDF2WithHmacSHA1";
+
+  private static final int SIZE = 128;
+
+  private static final Pattern layout = Pattern.compile("\\$31\\$(\\d\\d?)\\$(.{43})");
+
+  private final SecureRandom random;
+
+  private final int cost;
+
+  public PBKDF2Hasher()
+  {
+    this(DEFAULT_COST);
+  }
+
+  /**
+   * Create a password manager with a specified cost
+   *
+   * @param cost the exponential computational cost of hashing a password, 0 to 30
+   */
+  public PBKDF2Hasher(int cost)
+  {
+    iterations(cost); /* Validate cost */
+    this.cost = cost;
+    this.random = new SecureRandom();
+  }
+
+  private static int iterations(int cost)
+  {
+    if ((cost < 0) || (cost > 30))
+      throw new IllegalArgumentException("cost: " + cost);
+    return 1 << cost;
+  }
+
+  /**
+   * Hash a password for storage.
+   *
+   * @return a secure authentication token to be stored for later authentication
+   */
+  public String hash(char[] password)
+  {
+    byte[] salt = new byte[SIZE / 8];
+    random.nextBytes(salt);
+    byte[] dk = pbkdf2(password, salt, 1 << cost);
+    byte[] hash = new byte[salt.length + dk.length];
+    System.arraycopy(salt, 0, hash, 0, salt.length);
+    System.arraycopy(dk, 0, hash, salt.length, dk.length);
+    Base64.Encoder enc = Base64.getUrlEncoder().withoutPadding();
+    return ID + cost + '$' + enc.encodeToString(hash);
+  }
+
+  /**
+   * Authenticate with a password and a stored password token.
+   *
+   * @return true if the password and token match
+   */
+  public boolean checkPassword(char[] password, String token)
+  {
+    Matcher m = layout.matcher(token);
+    if (!m.matches())
+      throw new IllegalArgumentException("Invalid token format");
+    int iterations = iterations(Integer.parseInt(m.group(1)));
+    byte[] hash = Base64.getUrlDecoder().decode(m.group(2));
+    byte[] salt = Arrays.copyOfRange(hash, 0, SIZE / 8);
+    byte[] check = pbkdf2(password, salt, iterations);
+    int zero = 0;
+    for (int idx = 0; idx < check.length; ++idx)
+      zero |= hash[salt.length + idx] ^ check[idx];
+    return zero == 0;
+  }
+
+  private static byte[] pbkdf2(char[] password, byte[] salt, int iterations)
+  {
+    KeySpec spec = new PBEKeySpec(password, salt, iterations, SIZE);
+    try {
+      SecretKeyFactory f = SecretKeyFactory.getInstance(ALGORITHM);
+      return f.generateSecret(spec).getEncoded();
+    }
+    catch (NoSuchAlgorithmException ex) {
+      throw new IllegalStateException("Missing algorithm: " + ALGORITHM, ex);
+    }
+    catch (InvalidKeySpecException ex) {
+      throw new IllegalStateException("Invalid SecretKeyFactory", ex);
+    }
+  }
+
+  /**
+   * Hash a password in an immutable {@code String}.
+   *
+   * <p>Passwords should be stored in a {@code char[]} so that it can be filled
+   * with zeros after use instead of lingering on the heap and elsewhere.
+   *
+   * @deprecated Use {@link #hash(char[])} instead
+   */
+  @Deprecated
+  public String hash(String password)
+  {
+    return hash(password.toCharArray());
+  }
+
+  /**
+   * Authenticate with a password in an immutable {@code String} and a stored
+   * password token.
+   *
+   * @deprecated Use {@link #checkPassword(char[],String)} instead.
+   * @see #hash(String)
+   */
+  @Deprecated
+  public boolean checkPassword(String password, String token)
+  {
+    return checkPassword(password.toCharArray(), token);
+  }
+
+}

core-java/src/main/java/com/baeldung/passwordhashing/SHA512Hasher.java

@@ -0,0 +1,35 @@
+package com.baeldung.passwordhashing;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+
+/** A really simple SHA_512 Encryption example.
+ *
+ */
+public class SHA512Hasher {
+
+  public String hash(String passwordToHash, byte[] salt){
+    String generatedPassword = null;
+    try {
+      MessageDigest md = MessageDigest.getInstance("SHA-512");
+      md.update(salt);
+      byte[] bytes = md.digest(passwordToHash.getBytes(StandardCharsets.UTF_8));
+      StringBuilder sb = new StringBuilder();
+      for(int i=0; i< bytes.length ;i++){
+        sb.append(Integer.toString((bytes[i] & 0xff) + 0x100, 16).substring(1));
+      }
+      generatedPassword = sb.toString();
+    }
+    catch (NoSuchAlgorithmException e){
+      e.printStackTrace();
+    }
+    return generatedPassword;
+  }
+
+  public boolean checkPassword(String hash, String attempt, byte[] salt){
+    String generatedHash = hash(attempt, salt);
+    return hash.equals(generatedHash);
+  }
+}

core-java/src/main/java/com/baeldung/passwordhashing/SimplePBKDF2Hasher.java

@@ -0,0 +1,18 @@
+package com.baeldung.passwordhashing;
+
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.PBEKeySpec;
+import java.security.spec.KeySpec;
+
+/** A really simple SimplePBKDF2 Encryption example.
+ *
+ */
+public class SimplePBKDF2Hasher {
+
+  public static String hashSimple(String password, byte[] salt) throws Exception{
+    KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 65536, 128);
+    SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
+    byte[] hash = f.generateSecret(spec).getEncoded();
+    return String.valueOf(hash);
+  }
+}

core-java/src/main/java/com/baeldung/zoneddatetime/OffsetDateTimeExample.java

@@ -1,16 +1,12 @@
 package com.baeldung.zoneddatetime;
 
-import java.time.LocalDateTime;
 import java.time.OffsetDateTime;
-import java.time.ZoneId;
 import java.time.ZoneOffset;
 
 public class OffsetDateTimeExample {
 
-    public OffsetDateTime getCurrentTimeByZoneOffset(String region) {
-        LocalDateTime now = LocalDateTime.now();
-        ZoneId zone = ZoneId.of(region);
-        ZoneOffset zoneOffSet= zone.getRules().getOffset(now);
+    public OffsetDateTime getCurrentTimeByZoneOffset(String offset) {
+        ZoneOffset zoneOffSet= ZoneOffset.of(offset);
         OffsetDateTime date = OffsetDateTime.now(zoneOffSet);
         return date;
     }

core-java/src/main/java/com/baeldung/zoneddatetime/OffsetTimeExample.java

@@ -1,17 +1,12 @@
 package com.baeldung.zoneddatetime;
 
-import java.time.LocalDateTime;
 import java.time.OffsetTime;
-import java.time.ZoneId;
 import java.time.ZoneOffset;
 
 public class OffsetTimeExample {
 
-    public OffsetTime getCurrentTimeByZoneOffset(String region) {
-        LocalDateTime now = LocalDateTime.now();
-        ZoneId zone = ZoneId.of(region);
-        ZoneOffset zoneOffSet = zone.getRules()
-            .getOffset(now);
+    public OffsetTime getCurrentTimeByZoneOffset(String offset) {
+        ZoneOffset zoneOffSet = ZoneOffset.of(offset);
         OffsetTime time = OffsetTime.now(zoneOffSet);
         return time;
     }

core-java/src/test/java/com/baeldung/passwordhashing/PBKDF2HasherUnitTest.java

@@ -0,0 +1,41 @@
+package com.baeldung.passwordhashing;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+
+public class PBKDF2HasherUnitTest {
+
+  private PBKDF2Hasher mPBKDF2Hasher;
+
+  @Before
+  public void setUp() throws Exception {
+    mPBKDF2Hasher = new PBKDF2Hasher();
+  }
+
+  @Test
+  public void givenCorrectMessageAndHash_whenAuthenticated_checkAuthenticationSucceeds() throws Exception {
+    String message1 = "password123";
+
+    String hash1 = mPBKDF2Hasher.hash(message1.toCharArray());
+
+    assertTrue(mPBKDF2Hasher.checkPassword(message1.toCharArray(), hash1));
+
+  }
+
+  @Test
+  public void givenWrongMessage_whenAuthenticated_checkAuthenticationFails() throws Exception {
+    String message1 = "password123";
+
+    String hash1 = mPBKDF2Hasher.hash(message1.toCharArray());
+
+    String wrongPasswordAttempt = "IamWrong";
+
+    assertFalse(mPBKDF2Hasher.checkPassword(wrongPasswordAttempt.toCharArray(), hash1));
+
+  }
+
+
+}

core-java/src/test/java/com/baeldung/passwordhashing/SHA512HasherUnitTest.java

@@ -0,0 +1,70 @@
+package com.baeldung.passwordhashing;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.security.SecureRandom;
+
+import static org.junit.Assert.*;
+
+/**
+ * Created by PhysicsSam on 06-Sep-18.
+ */
+public class SHA512HasherUnitTest {
+
+  private SHA512Hasher hasher;
+  private SecureRandom secureRandom;
+
+  @Before
+  public void setUp() throws Exception {
+    hasher = new SHA512Hasher();
+    secureRandom = new SecureRandom();
+  }
+
+  @Test
+  public void givenSamePasswordAndSalt_whenHashed_checkResultingHashesAreEqual() throws Exception {
+
+    byte[] salt = new byte[16];
+    secureRandom.nextBytes(salt);
+
+    String hash1 = hasher.hash("password", salt);
+    String hash2 = hasher.hash("password", salt);
+
+    assertEquals(hash1, hash2);
+
+  }
+
+  @Test
+  public void givenSamePasswordAndDifferentSalt_whenHashed_checkResultingHashesNotEqual() throws Exception {
+
+    byte[] salt = new byte[16];
+    secureRandom.nextBytes(salt);
+    String hash1 = hasher.hash("password", salt);
+    //generate a second salt
+    byte[] secondSalt = new byte[16];
+    String hash2 = hasher.hash("password", secondSalt);
+
+    assertNotEquals(hash1, hash2);
+
+  }
+
+  @Test
+  public void givenPredefinedHash_whenCorrectAttemptGiven_checkAuthenticationSucceeds() throws Exception {
+    byte[] salt = new byte[16];
+    secureRandom.nextBytes(salt);
+
+    String originalHash = hasher.hash("password123", salt);
+
+    assertTrue(hasher.checkPassword(originalHash, "password123", salt));
+  }
+
+  @Test
+  public void givenPredefinedHash_whenIncorrectAttemptGiven_checkAuthenticationFails() throws Exception {
+    byte[] salt = new byte[16];
+    secureRandom.nextBytes(salt);
+
+    String originalHash = hasher.hash("password123", salt);
+
+    assertFalse(hasher.checkPassword(originalHash, "password124", salt));
+  }
+}

core-java/src/test/java/com/baeldung/zoneddatetime/OffsetDateTimeExampleUnitTest.java

@@ -2,9 +2,8 @@ package com.baeldung.zoneddatetime;
 
 import static org.junit.Assert.assertTrue;
 
-import java.time.LocalDateTime;
 import java.time.OffsetDateTime;
-import java.time.ZoneId;
+import java.time.ZoneOffset;
 
 import org.junit.Test;
 
@@ -14,12 +13,10 @@ public class OffsetDateTimeExampleUnitTest {
 
     @Test
     public void givenZoneOffset_whenGetCurrentTime_thenResultHasZone() {
-        String zone = "Europe/Berlin";
-        OffsetDateTime time = offsetDateTimeExample.getCurrentTimeByZoneOffset(zone);   
+        String offset = "+02:00";
+        OffsetDateTime time = offsetDateTimeExample.getCurrentTimeByZoneOffset(offset);
 
         assertTrue(time.getOffset()
-            .equals(ZoneId.of(zone)
-                .getRules()
-                .getOffset(LocalDateTime.now())));
+            .equals(ZoneOffset.of(offset)));
     }
 }

core-java/src/test/java/com/baeldung/zoneddatetime/OffsetTimeExampleUnitTest.java

@@ -2,9 +2,8 @@ package com.baeldung.zoneddatetime;
 
 import static org.junit.Assert.assertTrue;
 
-import java.time.LocalDateTime;
 import java.time.OffsetTime;
-import java.time.ZoneId;
+import java.time.ZoneOffset;
 
 import org.junit.Test;
 
@@ -14,12 +13,10 @@ public class OffsetTimeExampleUnitTest {
 
     @Test
     public void givenZoneOffset_whenGetCurrentTime_thenResultHasZone() {
-        String zone = "Europe/Berlin";
-        OffsetTime time = offsetTimeExample.getCurrentTimeByZoneOffset(zone);   
+        String offset = "+02:00";
+        OffsetTime time = offsetTimeExample.getCurrentTimeByZoneOffset(offset);
 
         assertTrue(time.getOffset()
-            .equals(ZoneId.of(zone)
-                .getRules()
-                .getOffset(LocalDateTime.now())));
+            .equals(ZoneOffset.of(offset)));
     }
 }

core-java/src/test/java/com/baeldung/zoneddatetime/ZoneDateTimeExampleUnitTest.java

@@ -15,16 +15,19 @@ public class ZoneDateTimeExampleUnitTest {
     public void givenZone_whenGetCurrentTime_thenResultHasZone() {
         String zone = "Europe/Berlin";
         ZonedDateTime time = zoneDateTimeExample.getCurrentTimeByZoneId(zone);
+
         assertTrue(time.getZone()
             .equals(ZoneId.of(zone)));
     }
-    
+
     @Test
     public void givenZones_whenConvertDateByZone_thenGetConstantDiff() {
         String sourceZone = "Europe/Berlin";
         String destZone = "Asia/Tokyo";
         ZonedDateTime sourceDate = zoneDateTimeExample.getCurrentTimeByZoneId(sourceZone);
         ZonedDateTime destDate = zoneDateTimeExample.convertZonedDateTime(sourceDate, destZone);
-        assertTrue(sourceDate.toInstant().compareTo(destDate.toInstant()) == 0);
+        
+        assertTrue(sourceDate.toInstant()
+            .compareTo(destDate.toInstant()) == 0);
     }
 }

java-strings/pom.xml

@@ -52,6 +52,11 @@
             <artifactId>icu4j</artifactId>
             <version>${icu4j.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
         
         <dependency>
             <groupId>com.vdurmont</groupId>
@@ -92,6 +97,7 @@
         <assertj.version>3.6.1</assertj.version>
         <jmh-core.version>1.19</jmh-core.version>
         <icu4j.version>61.1</icu4j.version>
+        <guava.version>26.0-jre</guava.version>
     </properties>
 
 </project>

java-strings/src/test/java/com/baeldung/string/StringEmptyUnitTest.java

@@ -0,0 +1,51 @@
+package com.baeldung.string;
+
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.text.IsEmptyString.isEmptyOrNullString;
+import static org.hamcrest.text.IsEmptyString.isEmptyString;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotSame;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+import org.apache.commons.lang3.StringUtils;
+import org.assertj.core.api.Assertions;
+import org.junit.Test;
+
+import com.google.common.base.Strings;
+
+public class StringEmptyUnitTest {
+
+    private String text = "baeldung";
+
+    @Test
+    public void givenAString_whenCheckedForEmptyUsingJunit_shouldAssertSuccessfully() {
+        assertTrue(!text.isEmpty());
+        assertFalse(text.isEmpty());
+        assertNotEquals("", text);
+        assertNotSame("", text);
+    }
+
+    @Test
+    public void givenAString_whenCheckedForEmptyUsingHamcrest_shouldAssertSuccessfully() {
+        assertThat(text, not(isEmptyString()));
+        assertThat(text, not(isEmptyOrNullString()));
+    }
+
+    @Test
+    public void givenAString_whenCheckedForEmptyUsingCommonsLang_shouldAssertSuccessfully() {
+        assertTrue(StringUtils.isNotBlank(text));
+    }
+
+    @Test
+    public void givenAString_whenCheckedForEmptyUsingAssertJ_shouldAssertSuccessfully() {
+        Assertions.assertThat(text).isNotEmpty();
+    }
+
+    @Test
+    public void givenAString_whenCheckedForEmptyUsingGuava_shouldAssertSuccessfully() {
+        assertFalse(Strings.isNullOrEmpty(text));
+    }
+
+}

spring-boot-jasypt/src/test/java/com/baeldung/jasypt/CustomJasyptIntegrationTest.java

@@ -14,7 +14,7 @@ import com.baeldung.jasypt.Main;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = {Main.class})
-public class CustomJasyptTest {
+public class CustomJasyptIntegrationTest {
 
     @Autowired
     ApplicationContext appCtx;

spring-boot-jasypt/src/test/java/com/baeldung/jasypt/JasyptSimpleIntegrationTest.java

@@ -13,7 +13,7 @@ import com.baeldung.jasypt.simple.PropertyServiceForJasyptSimple;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest
-public class JasyptSimpleTest {
+public class JasyptSimpleIntegrationTest {
 
     @Autowired
     ApplicationContext appCtx;

spring-boot-jasypt/src/test/java/com/baeldung/jasypt/JasyptWithStarterIntegrationTest.java

@@ -14,7 +14,7 @@ import com.baeldung.jasypt.starter.PropertyServiceForJasyptStarter;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest
-public class JasyptWithStarterTest {
+public class JasyptWithStarterIntegrationTest {
 
     @Autowired
     ApplicationContext appCtx;

spring-cloud/pom.xml

@@ -35,6 +35,7 @@
         <module>spring-cloud-archaius</module>
         <module>spring-cloud-functions</module>        
         <module>spring-cloud-vault</module>
+		<module>spring-cloud-security</module>
     </modules>
 
     <build>

spring-cloud/spring-cloud-security/README.md

@@ -1,29 +0,0 @@
-# README #
-
-This README would normally document whatever steps are necessary to get your application up and running.
-
-### What is this repository for? ###
-
-* Quick summary
-* Version
-* [Learn Markdown](https://bitbucket.org/tutorials/markdowndemo)
-
-### How do I get set up? ###
-
-* Summary of set up
-* Configuration
-* Dependencies
-* Database configuration
-* How to run tests
-* Deployment instructions
-
-### Contribution guidelines ###
-
-* Writing tests
-* Code review
-* Other guidelines
-
-### Who do I talk to? ###
-
-* Repo owner or admin
-* Other community or team contact

spring-cloud/spring-cloud-security/auth-client/pom.xml

@@ -2,18 +2,15 @@
 <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</groupId>
     <artifactId>auth-client</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>auth-client</name>
-    <description>Demo project for Spring Boot</description>
-
+	<description>Spring Cloud Security APP Client Module</description>
+	
     <parent>
-        <artifactId>parent-boot-1</artifactId>
+        <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
-        <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../../parent-boot-1</relativePath>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
@@ -88,9 +85,6 @@
     </dependencyManagement>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <js-cookie.version>2.1.0</js-cookie.version>
         <spring-cloud.version>Dalston.SR4</spring-cloud.version>
     </properties>

spring-cloud/spring-cloud-security/auth-client/src/test/java/com/example/springoath2/Springoath2ApplicationIntegrationTest.java

@@ -9,7 +9,7 @@ import com.baeldung.CloudSite;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = CloudSite.class)
-public class Springoath2ApplicationTests {
+public class Springoath2ApplicationIntegrationTest {
 
 	@Test
 	public void contextLoads() {

spring-cloud/spring-cloud-security/auth-resource/pom.xml

@@ -3,21 +3,18 @@
          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</groupId>
     <artifactId>auth-resource</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>auth-resource</name>
-    <description>Demo project for Spring Boot</description>
+    <description>Spring Cloud Security APP Resource Module</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
+        <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
-        <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../../parent-boot-1</relativePath>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
-
+    
     <dependencies>
         <dependency>
             <groupId>org.springframework.security.oauth</groupId>
@@ -60,9 +57,6 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <spring-cloud.version>Edgware.RELEASE</spring-cloud.version>
     </properties>
 

spring-cloud/spring-cloud-security/auth-resource/src/test/java/com/baeldung/service/personservice/PersonserviceApplicationIntegrationTest.java

@@ -7,7 +7,7 @@ import org.springframework.test.context.junit4.SpringRunner;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest
-public class PersonserviceApplicationTests {
+public class PersonserviceApplicationIntegrationTest {
 
     @Test
     public void contextLoads() {

spring-cloud/spring-cloud-security/auth-server/pom.xml

@@ -2,15 +2,13 @@
 <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</groupId>
     <artifactId>auth-server</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
-
+    <description>Spring Cloud Security APP Server Module</description>
+	
     <parent>
-        <artifactId>parent-boot-1</artifactId>
+        <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
-        <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../../parent-boot-1</relativePath>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>

spring-cloud/spring-cloud-security/pom.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-cloud-security</artifactId>
+    <packaging>pom</packaging>
+    <version>1.0.0-SNAPSHOT</version>
+    <name>spring-cloud-security</name>
+
+   <parent>
+        <artifactId>parent-boot-1</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-1</relativePath>
+    </parent>
+    
+    <modules>
+        <module>auth-client</module>
+		<module>auth-resource</module>
+		<module>auth-server</module>
+    </modules>
+
+</project>

spring-security-mvc-boot/src/main/java/org/baeldung/ip/web/MainController.java

@@ -28,8 +28,9 @@ public class MainController {
     public void getFilters() {
         FilterChainProxy filterChainProxy = (FilterChainProxy) springSecurityFilterChain;
         List<SecurityFilterChain> list = filterChainProxy.getFilterChains();
-        list.forEach(chain -> chain.getFilters()
-            .forEach(filter -> System.out.println(filter.getClass())));
+        list.stream()
+              .flatMap(chain -> chain.getFilters().stream())
+              .forEach(filter -> System.out.println(filter.getClass()));
     }
     
     @RequestMapping(method = RequestMethod.GET, value = "/foos/{id}")

testing-modules/spring-context-testing/pom.xml

@@ -1,25 +0,0 @@
-<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</groupId>
-    <artifactId>spring-context-testing</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter</artifactId>
-            <version>${spring.boot.starter.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-            <version>${spring.boot.starter.version}</version>
-        </dependency>
-    </dependencies>
-
-    <properties>
-        <spring.boot.starter.version>2.0.4.RELEASE</spring.boot.starter.version>
-    </properties>
-</project>