Merge pull request #20 from eugenp/master

update

akka-http/src/test/java/com/baeldung/akkahttp/UserServerUnitTest.java

@@ -7,6 +7,8 @@ import akka.http.javadsl.model.HttpEntities;
 import akka.http.javadsl.model.HttpRequest;
 import akka.http.javadsl.testkit.JUnitRouteTest;
 import akka.http.javadsl.testkit.TestRoute;
+
+import org.junit.Ignore;
 import org.junit.Test;
 
 public class UserServerUnitTest extends JUnitRouteTest {
@@ -17,6 +19,7 @@ public class UserServerUnitTest extends JUnitRouteTest {
 
   TestRoute appRoute = testRoute(new UserServer(userActorRef).routes());
 
+  @Ignore
   @Test
   public void whenRequest_thenActorResponds() {
 

cloud-foundry-uaa/pom.xml

@@ -0,0 +1,21 @@
+<?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>
+    <artifactId>cloud-foundry-uaa</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>cloud-foundry-uaa</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <module>cf-uaa-oauth2-client</module>
+        <module>cf-uaa-oauth2-resource-server</module>
+    </modules>
+
+</project>

core-groovy-2/src/test/groovy/com/baeldung/category/CategoryUnitTest.groovy

@@ -28,16 +28,17 @@ class CategoryUnitTest extends GroovyTestCase {
         }
     }
 
-    void test_whenUsingTimeCategory_thenOperationOnNumber() {
+//	http://team.baeldung.com/browse/BAEL-20687
-        SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy")
+//    void test_whenUsingTimeCategory_thenOperationOnNumber() {
-        use (TimeCategory) {
+//        SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy")
-            assert sdf.format(5.days.from.now) == sdf.format(new Date() + 5.days)
+//        use (TimeCategory) {
-
+//            assert sdf.format(5.days.from.now) == sdf.format(new Date() + 5.days)
-            sdf = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss")
+//
-            assert sdf.format(10.minutes.from.now) == sdf.format(new Date() + 10.minutes)
+//            sdf = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss")
-            assert sdf.format(2.hours.ago) == sdf.format(new Date() - 2.hours)
+//            assert sdf.format(10.minutes.from.now) == sdf.format(new Date() + 10.minutes)
-        }
+//            assert sdf.format(2.hours.ago) == sdf.format(new Date() - 2.hours)
-    }
+//        }
+//    }
 
     void test_whenUsingDOMCategory_thenOperationOnXML() {
 

core-groovy-2/src/test/groovy/com/baeldung/webservice/WebserviceUnitTest.groovy

@@ -9,7 +9,7 @@ import wslite.soap.SOAPMessageBuilder
 import wslite.http.auth.HTTPBasicAuthorization
 import org.junit.Test
 
-class WebserviceUnitTest extends GroovyTestCase {
+class WebserviceManualTest extends GroovyTestCase {
 
     JsonSlurper jsonSlurper = new JsonSlurper()
 

core-groovy/src/test/groovy/com/baeldung/file/ReadFileUnitTest.groovy

@@ -1,6 +1,7 @@
 package com.baeldung.file
 
 import spock.lang.Specification
+import spock.lang.Ignore
 
 class ReadFileUnitTest extends Specification {
 
@@ -32,6 +33,7 @@ class ReadFileUnitTest extends Specification {
             assert lines.size(), 3
     }
     
+    @Ignore
     def 'Should return file content in string using ReadFile.readFileString given filePath' () {
         given:
             def filePath = "src/main/resources/fileContent.txt"

core-java-modules/core-java-concurrency-advanced-3/src/test/java/com/baeldung/rejection/SaturationPolicyUnitTest.java

@@ -1,6 +1,7 @@
 package com.baeldung.rejection;
 
 import org.junit.After;
+import org.junit.Ignore;
 import org.junit.Test;
 
 import java.util.ArrayList;
@@ -28,6 +29,7 @@ public class SaturationPolicyUnitTest {
         }
     }
 
+    @Ignore
     @Test
     public void givenAbortPolicy_WhenSaturated_ThenShouldThrowRejectedExecutionException() {
         executor = new ThreadPoolExecutor(1, 1, 0, MILLISECONDS, new SynchronousQueue<>(), new AbortPolicy());
@@ -36,6 +38,7 @@ public class SaturationPolicyUnitTest {
         assertThatThrownBy(() -> executor.execute(() -> System.out.println("Will be rejected"))).isInstanceOf(RejectedExecutionException.class);
     }
 
+    @Ignore
     @Test
     public void givenCallerRunsPolicy_WhenSaturated_ThenTheCallerThreadRunsTheTask() {
         executor = new ThreadPoolExecutor(1, 1, 0, MILLISECONDS, new SynchronousQueue<>(), new CallerRunsPolicy());

core-java-modules/core-java-datetime-java8-2/pom.xml

@@ -0,0 +1,72 @@
+<?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>
+    <artifactId>core-java-datetime-java8</artifactId>
+    <version>${project.parent.version}</version>
+    <name>core-java-datetime-java8</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+            <version>${joda-time.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>${log4j.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>core-java-datetime-java8</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <maven.compiler.source>1.9</maven.compiler.source>
+        <maven.compiler.target>1.9</maven.compiler.target>
+        <joda-time.version>2.10</joda-time.version>
+        <!-- testing -->
+        <assertj.version>3.6.1</assertj.version>
+    </properties>
+
+</project>

core-java-modules/core-java-datetime-java8-2/src/main/java/com/baeldung/localdate/LocalDateExample.java

@@ -0,0 +1,31 @@
+package com.baeldung.localdate;
+
+import java.time.LocalDate;
+import java.time.Month;
+import java.time.format.DateTimeFormatter;
+
+public class LocalDateExample {
+    public LocalDate getCustomDateOne(int year, int month, int dayOfMonth) {
+        return LocalDate.of(year, month, dayOfMonth);
+    }
+
+    public LocalDate getCustomDateTwo(int year, Month month, int dayOfMonth) {
+        return LocalDate.of(year, month, dayOfMonth);
+    }
+
+    public LocalDate getDateFromEpochDay(long epochDay) {
+        return LocalDate.ofEpochDay(epochDay);
+    }
+
+    public LocalDate getDateFromYearAndDayOfYear(int year, int dayOfYear) {
+        return LocalDate.ofYearDay(year, dayOfYear);
+    }
+
+    public LocalDate getDateFromString(String date) {
+        return LocalDate.parse(date);
+    }
+
+    public LocalDate getDateFromStringAndFormatter(String date, String pattern) {
+        return LocalDate.parse(date, DateTimeFormatter.ofPattern(pattern));
+    }
+}

core-java-modules/core-java-datetime-java8-2/src/test/java/com/baeldung/localdate/LocalDateExampleUnitTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.datebasics;
+package com.baeldung.localdate;
 
 import static org.junit.Assert.assertEquals;
 
@@ -6,23 +6,8 @@ import java.time.Month;
 
 import org.junit.Test;
 
-public class CreateDateUnitTest {
+public class LocalDateExampleUnitTest {
-    private CreateDate date = new CreateDate();
+    private LocalDateExample date = new LocalDateExample();
-    
-    @Test
-    public void whenUsingNowMethod_thenLocalDate() {
-        assertEquals("2020-01-08", date.getTodaysDate());
-    }
-    
-    @Test
-    public void whenUsingClock_thenLocalDate() {
-        assertEquals("2020-01-08", date.getTodaysDateFromClock());
-    }
-    
-    @Test
-    public void givenValues_whenUsingZone_thenLocalDate() {
-        assertEquals("2020-01-08", date.getTodaysDateFromZone("Asia/Kolkata"));
-    }
 
     @Test
     public void givenValues_whenUsingOfMethod_thenLocalDate() {

core-java-modules/core-java-datetime-java8/src/main/java/com/baeldung/datebasics/CreateDate.java

@@ -1,45 +0,0 @@
-package com.baeldung.datebasics;
-
-import java.time.Clock;
-import java.time.LocalDate;
-import java.time.Month;
-import java.time.ZoneId;
-import java.time.format.DateTimeFormatter;
-
-public class CreateDate {
-	public LocalDate getTodaysDate() {
-		return LocalDate.now();
-	}
-
-	public LocalDate getTodaysDateFromClock() {
-		return LocalDate.now(Clock.systemDefaultZone());
-	}
-
-	public LocalDate getTodaysDateFromZone(String zone) {
-		return LocalDate.now(ZoneId.of(zone));
-	}
-
-	public LocalDate getCustomDateOne(int year, int month, int dayOfMonth) {
-		return LocalDate.of(year, month, dayOfMonth);
-	}
-
-	public LocalDate getCustomDateTwo(int year, Month month, int dayOfMonth) {
-		return LocalDate.of(year, month, dayOfMonth);
-	}
-
-	public LocalDate getDateFromEpochDay(long epochDay) {
-		return LocalDate.ofEpochDay(epochDay);
-	}
-
-	public LocalDate getDateFromYearAndDayOfYear(int year, int dayOfYear) {
-		return LocalDate.ofYearDay(year, dayOfYear);
-	}
-
-	public LocalDate getDateFromString(String date) {
-		return LocalDate.parse(date);
-	}
-
-	public LocalDate getDateFromStringAndFormatter(String date, String pattern) {
-		return LocalDate.parse(date, DateTimeFormatter.ofPattern(pattern));
-	}
-}

core-java-modules/core-java-io-apis/src/test/java/com/baeldung/file/FileClassUnitTest.java

@@ -1,5 +1,6 @@
 package com.baeldung.file;
 
+import org.junit.Ignore;
 import org.junit.Test;
 
 import java.io.*;
@@ -73,6 +74,7 @@ public class FileClassUnitTest {
         assertFalse(writable);
     }
 
+    @Ignore
     @Test
     public void givenWriteOnlyFile_whenCreateNewFile_thenCantReadFile() {
         File parentDir = makeDir("writeDir");

core-java-modules/core-java-jndi/pom.xml

@@ -9,10 +9,9 @@
     <name>core-java-jndi</name>
 
     <parent>
-        <groupId>com.baeldung</groupId>
+        <groupId>com.baeldung.core-java-modules</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>core-java-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -22,6 +21,12 @@
             <version>${jupiter.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.5.1</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>

core-java-modules/core-java-jndi/src/test/java/com/baeldung/jndi/exceptions/JndiExceptionsUnitTest.java

@@ -1,5 +1,12 @@
 package com.baeldung.jndi.exceptions;
 
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import javax.naming.InitialContext;
+import javax.naming.NameNotFoundException;
+import javax.naming.NoInitialContextException;
+
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.MethodOrderer;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;
@@ -7,15 +14,10 @@ import org.junit.jupiter.api.TestMethodOrder;
 import org.springframework.jndi.JndiTemplate;
 import org.springframework.mock.jndi.SimpleNamingContextBuilder;
 
-import javax.naming.InitialContext;
-import javax.naming.NameNotFoundException;
-import javax.naming.NoInitialContextException;
-
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
 @TestMethodOrder(MethodOrderer.OrderAnnotation.class)
 public class JndiExceptionsUnitTest {
 
+    @Disabled
     @Test
     @Order(1)
     void givenNoContext_whenLookupObject_thenThrowNoInitialContext() {

core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml

@@ -2,7 +2,6 @@
 <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.servicemodule</groupId>
     <artifactId>servicemodule</artifactId>
     <packaging>jar</packaging>
 

core-java-modules/core-java-jpms/decoupling-pattern2/consumermodule/pom.xml

@@ -8,8 +8,8 @@
     <version>1.0</version>
 
     <parent>
-        <groupId>decoupling-pattern2</groupId>
+        <groupId>com.baeldung.decoupling-pattern2</groupId>
-        <artifactId>com.baeldung.decoupling-pattern2</artifactId>
+        <artifactId>decoupling-pattern2</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 

core-java-modules/core-java-jpms/decoupling-pattern2/providermodule/pom.xml

@@ -8,8 +8,8 @@
     <version>1.0</version>
 
     <parent>
-        <groupId>decoupling-pattern2</groupId>
+        <groupId>com.baeldung.decoupling-pattern2</groupId>
-        <artifactId>com.baeldung.decoupling-pattern2</artifactId>
+        <artifactId>decoupling-pattern2</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 

core-java-modules/core-java-jpms/decoupling-pattern2/servicemodule/pom.xml

@@ -3,13 +3,12 @@
          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.servicemodule</groupId>
     <artifactId>servicemodule</artifactId>
     <version>1.0</version>
 
     <parent>
-        <groupId>decoupling-pattern2</groupId>
+        <groupId>com.baeldung.decoupling-pattern2</groupId>
-        <artifactId>>com.baeldung.decoupling-pattern2</artifactId>
+        <artifactId>decoupling-pattern2</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 

core-java-modules/core-java-jpms/pom.xml

@@ -0,0 +1,21 @@
+<?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>
+    <artifactId>core-java-jpms</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>core-java-jpms</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <module>decoupling-pattern1</module>
+        <module>decoupling-pattern2</module>
+    </modules>
+
+</project>

core-java-modules/core-java-jvm/src/test/java/com/baeldung/exitvshalt/JvmExitDemoManualTest.java

@@ -2,7 +2,7 @@ package com.baeldung.exitvshalt;
 
 import org.junit.Test;
 
-public class JvmExitDemoUnitTest {
+public class JvmExitDemoManualTest {
 
     JvmExitAndHaltDemo jvmExitAndHaltDemo = new JvmExitAndHaltDemo();
 

core-java-modules/core-java-jvm/src/test/java/com/baeldung/exitvshalt/JvmHaltDemoManualTest.java

@@ -2,7 +2,7 @@ package com.baeldung.exitvshalt;
 
 import org.junit.Test;
 
-public class JvmHaltDemoUnitTest {
+public class JvmHaltDemoManualTest {
 
     JvmExitAndHaltDemo jvmExitAndHaltDemo = new JvmExitAndHaltDemo();
 

core-java-modules/core-java-optional/src/main/java/com/baeldung/optional/Person.java

@@ -1,6 +1,8 @@
 package com.baeldung.optional;
 
+import java.util.List;
 import java.util.Optional;
+import java.util.stream.Collectors;
 
 public class Person {
     private String name;
@@ -21,7 +23,7 @@ public class Person {
     }
 
     public Optional<Integer> getAge() {
-        return Optional.ofNullable(age);
+        return Optional.of(age);
     }
 
     public void setAge(int age) {
@@ -36,4 +38,37 @@ public class Person {
         return Optional.ofNullable(password);
     }
 
+    public static List<Person> search(List<Person> people, String name, Optional<Integer> age) {
+        // Null checks for people and name
+        return people.stream()
+                .filter(p -> p.getName().equals(name))
+                .filter(p -> p.getAge().get() >= age.orElse(0))
+                .collect(Collectors.toList());
+    }
+
+    public static List<Person> search(List<Person> people, String name, Integer age) {
+        // Null checks for people and name
+        final Integer ageFilter = age != null ? age : 0;
+
+        return people.stream()
+                .filter(p -> p.getName().equals(name))
+                .filter(p -> p.getAge().get() >= ageFilter)
+                .collect(Collectors.toList());
+    }
+
+    public static List<Person> search(List<Person> people, String name) {
+        return doSearch(people, name, 0);
+    }
+
+    public static List<Person> search(List<Person> people, String name, int age) {
+        return doSearch(people, name, age);
+    }
+
+    private static List<Person> doSearch(List<Person> people, String name, int age) {
+        // Null checks for people and name
+        return people.stream()
+                .filter(p -> p.getName().equals(name))
+                .filter(p -> p.getAge().get().intValue() >= age)
+                .collect(Collectors.toList());
+    }
 }

core-java-modules/pom.xml

@@ -14,11 +14,110 @@
     </parent>
 
     <modules>
-        <module>pre-jpms</module>
+        <module>core-java</module>
-        <module>core-java-optional</module>
+        <!-- <module>core-java-10</module> --> <!-- We haven't upgraded to java 10. Fixing in BAEL-10841 -->
-        <module>core-java-lang-operators</module>
+        <!-- <module>core-java-11</module> --> <!-- We haven't upgraded to java 11. Fixing in BAEL-10841 -->
-        <module>core-java-networking-2</module>
+        <!-- <module>core-java-12</module> --> <!-- We haven't upgraded to java 12. Fixing in BAEL-10841 -->
+        <!-- <module>core-java-13</module> --> <!-- We haven't upgraded to java 12. Fixing in BAEL-10841 -->
+        <module>core-java-8</module>
+        <module>core-java-8-2</module>
+
+        <!-- <module>core-java-9</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+        <!-- <module>core-java-9-improvements</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+        <!-- <module>core-java-9-jigsaw</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+        <!-- <module>core-java-9-new-features</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+        <!-- <module>core-java-9-streams</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+
+        <module>core-java-annotations</module>
+        <module>core-java-arrays</module>
+        <module>core-java-arrays-2</module>
+
+        <module>core-java-collections</module>
+        <module>core-java-collections-2</module>
+        <module>core-java-collections-3</module>
+        <module>core-java-collections-array-list</module>
+        <module>core-java-collections-list</module>
+        <module>core-java-collections-list-2</module>
+        <module>core-java-collections-list-3</module>
+        <module>core-java-collections-set</module>
+
+        <module>core-java-concurrency-2</module>
+        <module>core-java-concurrency-advanced</module>
+        <module>core-java-concurrency-advanced-2</module>
+        <module>core-java-concurrency-advanced-3</module>
+        <module>core-java-concurrency-basic</module>
+        <module>core-java-concurrency-basic-2</module>
+        <module>core-java-concurrency-collections</module>
+
+        <!-- <module>core-java-date-operations-1</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
         <module>core-java-date-operations-2</module>
+        <!-- We haven't upgraded to java 9.-->
+        <!--
+        <module>core-java-datetime-computations</module>
+        <module>core-java-datetime-conversion</module>
+        <module>core-java-datetime-java8</module>
+        <module>core-java-datetime-string</module>
+        -->
+
+        <module>core-java-exceptions</module>
+        <module>core-java-exceptions-2</module>
+
+        <module>core-java-function</module>
+
+        <module>core-java-io</module>
+        <module>core-java-io-2</module>
+        <module>core-java-io-apis</module>
+        <module>core-java-io-conversions</module>
+
+        <module>core-java-jar</module>
+        <module>core-java-jndi</module>
+        <!-- <module>core-java-jpms</module> --> <!-- We haven't upgraded to java 10. Fixing in BAEL-10841 -->
+        <module>core-java-jvm</module>		
+
+        <module>core-java-lambdas</module>
+        <module>core-java-lang</module>
+        <module>core-java-lang-2</module>
+        <module>core-java-lang-math</module>
+        <module>core-java-lang-oop</module>
+        <module>core-java-lang-oop-2</module>
+        <module>core-java-lang-oop-3</module>
+        <module>core-java-lang-oop-4</module>
+        <module>core-java-lang-operators</module>
+        <module>core-java-lang-syntax</module>
+        <module>core-java-lang-syntax-2</module>
+
+        <module>core-java-networking</module>
+        <module>core-java-networking-2</module>
+        <module>core-java-nio</module>
+        <module>core-java-nio-2</module>
+
+        <module>core-java-optional</module>
+        <!--<module>core-java-os</module> --> <!-- We haven't upgraded to java 9.-->
+
+        <module>core-java-perf</module>
+
+        <module>core-java-reflection</module>
+
+        <module>core-java-security</module>
+        <module>core-java-streams</module>
+        <module>core-java-streams-2</module>
+        <module>core-java-streams-3</module>
+        <module>core-java-string-algorithms</module>
+        <module>core-java-string-algorithms-2</module>
+        <module>core-java-string-algorithms-3</module>
+        <module>core-java-string-apis</module>
+        <module>core-java-string-conversions</module>
+        <module>core-java-string-conversions-2</module>
+        <module>core-java-string-operations</module>
+        <module>core-java-string-operations-2</module>
+        <module>core-java-strings</module>
+        <module>core-java-sun</module>
+
+        <module>core-java-text</module>
+        <!-- <module>core-java-time-measurements</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+
+        <!-- <module>multimodulemavenproject</module> --> <!-- We haven't upgraded to java 9. Fixing in BAEL-10841 -->
+        <module>pre-jpms</module>
     </modules>
 
 </project>

libraries-2/src/test/java/com/baeldung/handlebars/BuiltinHelperUnitTest.java

@@ -7,6 +7,8 @@ import com.github.jknack.handlebars.Template;
 import com.github.jknack.handlebars.io.ClassPathTemplateLoader;
 import com.github.jknack.handlebars.io.TemplateLoader;
 import java.io.IOException;
+
+import org.junit.Ignore;
 import org.junit.Test;
 
 /**
@@ -18,6 +20,7 @@ public class BuiltinHelperUnitTest {
 
     private TemplateLoader templateLoader = new ClassPathTemplateLoader("/handlebars", ".html");
 
+    @Ignore
     @Test
     public void whenUsedWith_ThenContextChanges() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);
@@ -30,6 +33,7 @@ public class BuiltinHelperUnitTest {
         assertThat(templateString).isEqualTo("\n<h4>I live in World</h4>\n");
     }
 
+    @Ignore
     @Test
     public void whenUsedWithMustacheStyle_ThenContextChanges() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);
@@ -42,6 +46,7 @@ public class BuiltinHelperUnitTest {
         assertThat(templateString).isEqualTo("\n<h4>I live in World</h4>\n");
     }
 
+    @Ignore
     @Test
     public void whenUsedEach_ThenIterates() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);
@@ -58,6 +63,7 @@ public class BuiltinHelperUnitTest {
                                                + "\n<span>Spring is my friend.</span>\n");
     }
 
+    @Ignore
     @Test
     public void whenUsedEachMustacheStyle_ThenIterates() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);
@@ -74,6 +80,7 @@ public class BuiltinHelperUnitTest {
                                                + "\n<span>Spring is my friend.</span>\n");
     }
 
+    @Ignore
     @Test
     public void whenUsedIf_ThenPutsCondition() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);
@@ -86,6 +93,7 @@ public class BuiltinHelperUnitTest {
         assertThat(templateString).isEqualTo("\n<h4>Baeldung is busy.</h4>\n");
     }
 
+    @Ignore
     @Test
     public void whenUsedIfMustacheStyle_ThenPutsCondition() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);

libraries-2/src/test/java/com/baeldung/handlebars/ReusingTemplatesUnitTest.java

@@ -7,6 +7,8 @@ import com.github.jknack.handlebars.Template;
 import com.github.jknack.handlebars.io.ClassPathTemplateLoader;
 import com.github.jknack.handlebars.io.TemplateLoader;
 import java.io.IOException;
+
+import org.junit.Ignore;
 import org.junit.Test;
 
 /**
@@ -18,6 +20,7 @@ public class ReusingTemplatesUnitTest {
 
     private TemplateLoader templateLoader = new ClassPathTemplateLoader("/handlebars", ".html");
 
+    @Ignore
     @Test
     public void whenOtherTemplateIsReferenced_ThenCanReuse() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);
@@ -30,6 +33,7 @@ public class ReusingTemplatesUnitTest {
         assertThat(templateString).isEqualTo("<h4>Hi Baeldung!</h4>\n<p>This is the page Baeldung</p>");
     }
 
+    @Ignore
     @Test
     public void whenBlockIsDefined_ThenCanOverrideWithPartial() throws IOException {
         Handlebars handlebars = new Handlebars(templateLoader);

maven-all/pom.xml

@@ -0,0 +1,25 @@
+<?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>
+    <artifactId>maven-all</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>maven-all</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <!-- <module>compiler-plugin-java-9</module> --> <!-- We haven't upgraded to java 9. -->
+        <module>maven</module>
+        <module>maven-custom-plugin/counter-maven-plugin</module>
+        <module>maven-war-plugin</module>
+        <module>profiles</module>
+        <module>versions-maven-plugin</module>
+    </modules>
+
+</project>

maven-polyglot/pom.xml

@@ -0,0 +1,22 @@
+<?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>
+    <artifactId>maven-polyglot</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>maven-polyglot</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <!-- <module>maven-polyglot-json-app</module> --> <!-- Not a maven project -->
+        <module>maven-polyglot-json-extension</module>
+        <!-- <module>maven-polyglot-yml-app</module> --> <!-- Not a maven project -->
+    </modules>
+
+</project>

micronaut/src/main/resources/application.yml

@@ -2,4 +2,4 @@ micronaut:
     application:
         name: hello-world-server
     server:
-        port: 9080
+        port: ${random.port}

persistence-modules/spring-data-jpa-3/src/main/java/com/baeldung/multipledb/dao/product/ProductRepository.java

@@ -5,9 +5,9 @@ import java.util.List;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.PagingAndSortingRepository;
 
-import com.baeldung.multipledb.model.product.ProductMultipleDB;
+import com.baeldung.multipledb.model.product.Product;
 
-public interface ProductRepository extends PagingAndSortingRepository<ProductMultipleDB, Integer> {
+public interface ProductRepository extends PagingAndSortingRepository<Product, Integer> {
 
-    List<ProductMultipleDB> findAllByPrice(double price, Pageable pageable);
+    List<Product> findAllByPrice(double price, Pageable pageable);
 }

persistence-modules/spring-data-jpa-3/src/main/java/com/baeldung/multipledb/model/product/Product.java

@@ -6,7 +6,7 @@ import javax.persistence.Table;
 
 @Entity
 @Table(schema = "products")
-public class ProductMultipleDB {
+public class Product {
 
     @Id
     private int id;
@@ -15,19 +15,19 @@ public class ProductMultipleDB {
 
     private double price;
 
-    public ProductMultipleDB() {
+    public Product() {
         super();
     }
 
-    private ProductMultipleDB(int id, String name, double price) {
+    private Product(int id, String name, double price) {
         super();
         this.id = id;
         this.name = name;
         this.price = price;
     }
 
-    public static ProductMultipleDB from(int id, String name, double price) {
+    public static Product from(int id, String name, double price) {
-        return new ProductMultipleDB(id, name, price);
+        return new Product(id, name, price);
     }
 
     public int getId() {

persistence-modules/spring-data-jpa-3/src/test/java/com/baeldung/multipledb/ProductRepositoryIntegrationTest.java

@@ -23,7 +23,7 @@ import org.springframework.transaction.annotation.EnableTransactionManagement;
 import org.springframework.transaction.annotation.Transactional;
 
 import com.baeldung.multipledb.dao.product.ProductRepository;
-import com.baeldung.multipledb.model.product.ProductMultipleDB;
+import com.baeldung.multipledb.model.product.Product;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes=MultipleDbApplication.class)
@@ -36,22 +36,22 @@ public class ProductRepositoryIntegrationTest {
     @Before
     @Transactional("productTransactionManager")
     public void setUp() {
-        productRepository.save(ProductMultipleDB.from(1001, "Book", 21));
+        productRepository.save(Product.from(1001, "Book", 21));
-        productRepository.save(ProductMultipleDB.from(1002, "Coffee", 10));
+        productRepository.save(Product.from(1002, "Coffee", 10));
-        productRepository.save(ProductMultipleDB.from(1003, "Jeans", 30));
+        productRepository.save(Product.from(1003, "Jeans", 30));
-        productRepository.save(ProductMultipleDB.from(1004, "Shirt", 32));
+        productRepository.save(Product.from(1004, "Shirt", 32));
-        productRepository.save(ProductMultipleDB.from(1005, "Bacon", 10));
+        productRepository.save(Product.from(1005, "Bacon", 10));
     }
 
     @Test
     public void whenRequestingFirstPageOfSizeTwo_ThenReturnFirstPage() {
         Pageable pageRequest = PageRequest.of(0, 2);
 
-        Page<ProductMultipleDB> result = productRepository.findAll(pageRequest);
+        Page<Product> result = productRepository.findAll(pageRequest);
 
         assertThat(result.getContent(), hasSize(2));
         assertTrue(result.stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .allMatch(id -> Arrays.asList(1001, 1002)
                 .contains(id)));
     }
@@ -60,11 +60,11 @@ public class ProductRepositoryIntegrationTest {
     public void whenRequestingSecondPageOfSizeTwo_ThenReturnSecondPage() {
         Pageable pageRequest = PageRequest.of(1, 2);
 
-        Page<ProductMultipleDB> result = productRepository.findAll(pageRequest);
+        Page<Product> result = productRepository.findAll(pageRequest);
 
         assertThat(result.getContent(), hasSize(2));
         assertTrue(result.stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .allMatch(id -> Arrays.asList(1003, 1004)
                 .contains(id)));
     }
@@ -73,11 +73,11 @@ public class ProductRepositoryIntegrationTest {
     public void whenRequestingLastPage_ThenReturnLastPageWithRemData() {
         Pageable pageRequest = PageRequest.of(2, 2);
 
-        Page<ProductMultipleDB> result = productRepository.findAll(pageRequest);
+        Page<Product> result = productRepository.findAll(pageRequest);
 
         assertThat(result.getContent(), hasSize(1));
         assertTrue(result.stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .allMatch(id -> Arrays.asList(1005)
                 .contains(id)));
     }
@@ -86,12 +86,12 @@ public class ProductRepositoryIntegrationTest {
     public void whenSortingByNameAscAndPaging_ThenReturnSortedPagedResult() {
         Pageable pageRequest = PageRequest.of(0, 3, Sort.by("name"));
 
-        Page<ProductMultipleDB> result = productRepository.findAll(pageRequest);
+        Page<Product> result = productRepository.findAll(pageRequest);
 
         assertThat(result.getContent(), hasSize(3));
         assertThat(result.getContent()
             .stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .collect(Collectors.toList()), equalTo(Arrays.asList(1005, 1001, 1002)));
 
     }
@@ -101,12 +101,12 @@ public class ProductRepositoryIntegrationTest {
         Pageable pageRequest = PageRequest.of(0, 3, Sort.by("price")
             .descending());
 
-        Page<ProductMultipleDB> result = productRepository.findAll(pageRequest);
+        Page<Product> result = productRepository.findAll(pageRequest);
 
         assertThat(result.getContent(), hasSize(3));
         assertThat(result.getContent()
             .stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .collect(Collectors.toList()), equalTo(Arrays.asList(1004, 1003, 1001)));
 
     }
@@ -117,12 +117,12 @@ public class ProductRepositoryIntegrationTest {
             .descending()
             .and(Sort.by("name")));
 
-        Page<ProductMultipleDB> result = productRepository.findAll(pageRequest);
+        Page<Product> result = productRepository.findAll(pageRequest);
 
         assertThat(result.getContent(), hasSize(5));
         assertThat(result.getContent()
             .stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .collect(Collectors.toList()), equalTo(Arrays.asList(1004, 1003, 1001, 1005, 1002)));
 
     }
@@ -131,11 +131,11 @@ public class ProductRepositoryIntegrationTest {
     public void whenRequestingFirstPageOfSizeTwoUsingCustomMethod_ThenReturnFirstPage() {
         Pageable pageRequest = PageRequest.of(0, 2);
 
-        List<ProductMultipleDB> result = productRepository.findAllByPrice(10, pageRequest);
+        List<Product> result = productRepository.findAllByPrice(10, pageRequest);
 
         assertThat(result, hasSize(2));
         assertTrue(result.stream()
-            .map(ProductMultipleDB::getId)
+            .map(Product::getId)
             .allMatch(id -> Arrays.asList(1002, 1005)
                 .contains(id)));
     }

slack/pom.xml

@@ -0,0 +1,61 @@
+<?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.examples</groupId>
+    <artifactId>slack</artifactId>
+    <version>1.0</version>
+    <name>slack</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.hubspot.slack</groupId>
+            <artifactId>slack-base</artifactId>
+            <version>${slack.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.hubspot.slack</groupId>
+            <artifactId>slack-java-client</artifactId>
+            <version>${slack.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>${maven-jar-plugin.version}</version>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <addClasspath>true</addClasspath>
+                            <mainClass>com.baeldung.examples.slack.MainClass</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>1.6.0</version>
+                <configuration>
+                    <mainClass>com.baeldung.examples.slack.MainClass</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <slack.version>1.4</slack.version>
+        <maven-jar-plugin.version>2.4</maven-jar-plugin.version>
+    </properties>
+
+</project>

slack/src/main/java/com/baeldung/examples/slack/DiskSpaceErrorChecker.java

@@ -0,0 +1,42 @@
+package com.baeldung.examples.slack;
+
+import java.io.IOException;
+import java.nio.file.FileSystems;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DiskSpaceErrorChecker implements ErrorChecker {
+    private static final Logger LOG = LoggerFactory.getLogger(DiskSpaceErrorChecker.class);
+
+    private final ErrorReporter errorReporter;
+
+    private final double limit;
+
+    public DiskSpaceErrorChecker(ErrorReporter errorReporter, double limit) {
+        this.errorReporter = errorReporter;
+        this.limit = limit;
+    }
+
+    @Override
+    public void check() {
+        LOG.info("Checking disk space");
+        FileSystems.getDefault().getFileStores().forEach(fileStore -> {
+            try {
+                long totalSpace = fileStore.getTotalSpace();
+                long usableSpace = fileStore.getUsableSpace();
+                double usablePercentage = ((double) usableSpace) / totalSpace;
+                LOG.debug("File store {} has {} of {} ({}) usable space",
+                    fileStore, usableSpace, totalSpace, usablePercentage);
+
+                if (totalSpace > 0 && usablePercentage < limit) {
+                    String error = String.format("File store %s only has %d%% usable disk space",
+                        fileStore.name(), (int)(usablePercentage * 100));
+                    errorReporter.reportProblem(error);
+                }
+            } catch (IOException e) {
+                LOG.error("Error getting disk space for file store {}", fileStore, e);
+            }
+        });
+    }
+}

slack/src/main/java/com/baeldung/examples/slack/ErrorChecker.java

@@ -0,0 +1,5 @@
+package com.baeldung.examples.slack;
+
+public interface ErrorChecker {
+    void check();
+}

slack/src/main/java/com/baeldung/examples/slack/ErrorReporter.java

@@ -0,0 +1,5 @@
+package com.baeldung.examples.slack;
+
+public interface ErrorReporter {
+    void reportProblem(String problem);
+}

slack/src/main/java/com/baeldung/examples/slack/MainClass.java

@@ -0,0 +1,41 @@
+package com.baeldung.examples.slack;
+
+import java.io.IOException;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import com.hubspot.slack.client.SlackClient;
+import com.hubspot.slack.client.SlackClientFactory;
+import com.hubspot.slack.client.SlackClientRuntimeConfig;
+
+public class MainClass {
+    public static final long MINUTES = 1000 * 60;
+
+    public static void main(String[] args) throws IOException {
+        SlackClientRuntimeConfig runtimeConfig = SlackClientRuntimeConfig.builder()
+            .setTokenSupplier(() -> "<Your API Token>")
+            .build();
+
+        SlackClient slackClient = SlackClientFactory.defaultFactory().build(runtimeConfig);
+
+        ErrorReporter slackChannelErrorReporter = new SlackChannelErrorReporter(slackClient, "general");
+        ErrorReporter slackUserErrorReporter = new SlackUserErrorReporter(slackClient, "testuser@baeldung.com");
+
+        ErrorChecker diskSpaceErrorChecker10pct = new DiskSpaceErrorChecker(slackChannelErrorReporter, 0.1);
+        ErrorChecker diskSpaceErrorChecker2pct = new DiskSpaceErrorChecker(slackUserErrorReporter, 0.02);
+
+        Timer timer = new Timer();
+        timer.scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                diskSpaceErrorChecker10pct.check();
+            }
+        }, 0, 5 * MINUTES);
+        timer.scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                diskSpaceErrorChecker2pct.check();
+            }
+        }, 0, 5 * MINUTES);
+    }
+}

slack/src/main/java/com/baeldung/examples/slack/SlackChannelErrorReporter.java

@@ -0,0 +1,30 @@
+package com.baeldung.examples.slack;
+
+import com.hubspot.slack.client.SlackClient;
+import com.hubspot.slack.client.methods.params.chat.ChatPostMessageParams;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SlackChannelErrorReporter implements ErrorReporter {
+    private static final Logger LOG = LoggerFactory.getLogger(SlackChannelErrorReporter.class);
+
+    private final SlackClient slackClient;
+
+    private final String channel;
+
+    public SlackChannelErrorReporter(SlackClient slackClient, String channel) {
+        this.slackClient = slackClient;
+        this.channel = channel;
+    }
+
+    @Override
+    public void reportProblem(String problem) {
+        LOG.debug("Sending message to channel {}: {}", channel, problem);
+        slackClient.postMessage(
+            ChatPostMessageParams.builder()
+                .setText(problem)
+                .setChannelId(channel)
+                .build()
+        ).join().unwrapOrElseThrow();
+    }
+}

slack/src/main/java/com/baeldung/examples/slack/SlackUserErrorReporter.java

@@ -0,0 +1,52 @@
+package com.baeldung.examples.slack;
+
+import java.util.List;
+
+import com.hubspot.slack.client.SlackClient;
+import com.hubspot.slack.client.methods.params.chat.ChatPostMessageParams;
+import com.hubspot.slack.client.methods.params.conversations.ConversationCreateParams;
+import com.hubspot.slack.client.methods.params.im.ImOpenParams;
+import com.hubspot.slack.client.methods.params.users.UserEmailParams;
+import com.hubspot.slack.client.methods.params.users.UsersInfoParams;
+import com.hubspot.slack.client.models.response.im.ImOpenResponse;
+import com.hubspot.slack.client.models.response.users.UsersInfoResponse;
+import com.hubspot.slack.client.models.users.SlackUser;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SlackUserErrorReporter implements ErrorReporter {
+    private static final Logger LOG = LoggerFactory.getLogger(SlackUserErrorReporter.class);
+
+    private final SlackClient slackClient;
+
+    private final String user;
+
+    public SlackUserErrorReporter(SlackClient slackClient, String user) {
+        this.slackClient = slackClient;
+        this.user = user;
+    }
+
+    @Override
+    public void reportProblem(String problem) {
+        LOG.debug("Sending message to user {}: {}", user, problem);
+        UsersInfoResponse usersInfoResponse = slackClient
+            .lookupUserByEmail(UserEmailParams.builder()
+                .setEmail(user)
+                .build()
+            ).join().unwrapOrElseThrow();
+
+        ImOpenResponse imOpenResponse = slackClient.openIm(ImOpenParams.builder()
+            .setUserId(usersInfoResponse.getUser().getId())
+            .build()
+        ).join().unwrapOrElseThrow();
+
+        imOpenResponse.getChannel().ifPresent(channel -> {
+            slackClient.postMessage(
+                ChatPostMessageParams.builder()
+                    .setText(problem)
+                    .setChannelId(channel.getId())
+                    .build()
+            ).join().unwrapOrElseThrow();
+        });
+    }
+}

slack/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="DEBUG">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

spring-cloud/spring-cloud-gateway/pom.xml

@@ -68,6 +68,10 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+        	<groupId>org.springframework.boot</groupId>
+        	<artifactId>spring-boot-devtools</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

spring-cloud/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/CustomPredicatesApplication.java

@@ -0,0 +1,15 @@
+package com.baeldung.springcloudgateway.custompredicates;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+
+@SpringBootApplication
+public class CustomPredicatesApplication {
+
+    public static void main(String[] args) {
+        new SpringApplicationBuilder(CustomPredicatesApplication.class)
+          .profiles("customroutes")
+          .run(args);
+    }
+
+}

spring-cloud/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/config/CustomPredicatesConfig.java

@@ -0,0 +1,38 @@
+package com.baeldung.springcloudgateway.custompredicates.config;
+
+import org.springframework.cloud.gateway.filter.GatewayFilter;
+import org.springframework.cloud.gateway.route.RouteLocator;
+import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.springcloudgateway.custompredicates.factories.GoldenCustomerRoutePredicateFactory;
+import com.baeldung.springcloudgateway.custompredicates.factories.GoldenCustomerRoutePredicateFactory.Config;
+import com.baeldung.springcloudgateway.custompredicates.service.GoldenCustomerService;
+
+@Configuration
+public class CustomPredicatesConfig {
+    
+    
+    @Bean
+    public GoldenCustomerRoutePredicateFactory goldenCustomer(GoldenCustomerService goldenCustomerService) {
+        return new GoldenCustomerRoutePredicateFactory(goldenCustomerService);
+    }
+    
+
+    //@Bean
+    public RouteLocator routes(RouteLocatorBuilder builder, GoldenCustomerRoutePredicateFactory gf ) {
+
+        return builder.routes()
+          .route("dsl_golden_route", r -> r.path("/dsl_api/**")
+            .filters(f -> f.stripPrefix(1))
+            .uri("https://httpbin.org")
+            .predicate(gf.apply(new Config(true, "customerId"))))
+          .route("dsl_common_route", r -> r.path("/dsl_api/**")
+            .filters(f -> f.stripPrefix(1))
+            .uri("https://httpbin.org")
+            .predicate(gf.apply(new Config(false, "customerId"))))             
+          .build();
+    }
+    
+}

spring-cloud/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/factories/GoldenCustomerRoutePredicateFactory.java

@@ -0,0 +1,102 @@
+/**
+ * 
+ */
+package com.baeldung.springcloudgateway.custompredicates.factories;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.Predicate;
+
+import javax.validation.constraints.NotEmpty;
+
+import org.springframework.cloud.gateway.handler.predicate.AbstractRoutePredicateFactory;
+import org.springframework.http.HttpCookie;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.server.ServerWebExchange;
+
+import com.baeldung.springcloudgateway.custompredicates.service.GoldenCustomerService;
+
+/**
+ * @author Philippe
+ *
+ */
+public class GoldenCustomerRoutePredicateFactory extends AbstractRoutePredicateFactory<GoldenCustomerRoutePredicateFactory.Config> {
+
+    private final GoldenCustomerService goldenCustomerService;
+    
+    public GoldenCustomerRoutePredicateFactory(GoldenCustomerService goldenCustomerService ) {
+        super(Config.class);
+        this.goldenCustomerService = goldenCustomerService;
+    }
+
+
+    @Override
+    public List<String> shortcutFieldOrder() {
+        return Arrays.asList("isGolden","customerIdCookie");
+    }
+
+
+    @Override
+    public Predicate<ServerWebExchange> apply(Config config) {
+        
+        return (ServerWebExchange t) -> {
+            List<HttpCookie> cookies = t.getRequest()
+              .getCookies()
+              .get(config.getCustomerIdCookie());
+              
+            boolean isGolden; 
+            if ( cookies == null || cookies.isEmpty()) {
+                isGolden = false;
+            }
+            else {                
+                String customerId = cookies.get(0).getValue();                
+                isGolden = goldenCustomerService.isGoldenCustomer(customerId);
+            }
+              
+            return config.isGolden()?isGolden:!isGolden;           
+        };
+    }
+    
+    
+    @Validated
+    public static class Config {        
+        boolean isGolden = true;
+        
+        @NotEmpty
+        String customerIdCookie = "customerId";
+        
+        
+        public Config() {}
+        
+        public Config( boolean isGolden, String customerIdCookie) {
+            this.isGolden = isGolden;
+            this.customerIdCookie = customerIdCookie;
+        }
+        
+        public boolean isGolden() {
+            return isGolden;
+        }
+        
+        public void setGolden(boolean value) {
+            this.isGolden = value;
+        }
+
+        /**
+         * @return the customerIdCookie
+         */
+        public String getCustomerIdCookie() {
+            return customerIdCookie;
+        }
+
+        /**
+         * @param customerIdCookie the customerIdCookie to set
+         */
+        public void setCustomerIdCookie(String customerIdCookie) {
+            this.customerIdCookie = customerIdCookie;
+        }
+        
+        
+        
+    }
+    
+}

spring-cloud/spring-cloud-gateway/src/main/java/com/baeldung/springcloudgateway/custompredicates/service/GoldenCustomerService.java

@@ -0,0 +1,26 @@
+/**
+ * 
+ */
+package com.baeldung.springcloudgateway.custompredicates.service;
+
+import org.springframework.stereotype.Component;
+
+/**
+ * @author Philippe
+ *
+ */
+@Component
+public class GoldenCustomerService {
+    
+    public boolean isGoldenCustomer(String customerId) {
+        
+        // TODO: Add some AI logic to check is this customer deserves a "golden" status ;^)
+        if ( "baeldung".equalsIgnoreCase(customerId)) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+}

spring-cloud/spring-cloud-gateway/src/main/resources/application-customroutes.yml

@@ -0,0 +1,26 @@
+spring:
+  cloud:
+    gateway:
+      routes:
+      - id: golden_route
+        uri: https://httpbin.org
+        predicates:
+        - Path=/api/**
+        - GoldenCustomer=true
+        filters:
+        - StripPrefix=1
+        - AddRequestHeader=GoldenCustomer,true
+      - id: common_route
+        uri: https://httpbin.org
+        predicates:
+        - Path=/api/**
+        - name: GoldenCustomer
+          args:
+            golden: false
+            customerIdCookie: customerId
+        filters:
+        - StripPrefix=1
+        - AddRequestHeader=GoldenCustomer,false
+        
+              
+        

spring-cloud/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/customfilters/gatewayapp/CustomFiltersLiveTest.java

@@ -5,6 +5,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 import org.assertj.core.api.Condition;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.web.server.LocalServerPort;
@@ -27,6 +28,7 @@ public class CustomFiltersLiveTest {
     @LocalServerPort
     String port;
 
+    @Autowired
     private WebTestClient client;
 
     @BeforeEach

spring-cloud/spring-cloud-gateway/src/test/java/com/baeldung/springcloudgateway/custompredicates/CustomPredicatesApplicationLiveTest.java

@@ -0,0 +1,67 @@
+package com.baeldung.springcloudgateway.custompredicates;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.net.URI;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.json.JSONTokener;
+import org.junit.Before;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.RequestEntity;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.ActiveProfiles;
+
+/**
+ * This test requires
+ */
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+@ActiveProfiles("customroutes")
+public class CustomPredicatesApplicationLiveTest {
+
+    @LocalServerPort
+    String serverPort;
+    
+    @Autowired
+    private TestRestTemplate restTemplate;
+
+    @Test
+    void givenNormalCustomer_whenCallHeadersApi_thenResponseForNormalCustomer() throws JSONException {
+
+        String url = "http://localhost:" + serverPort + "/api/headers";        
+        ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
+        
+        JSONObject json = new JSONObject(response.getBody());
+        JSONObject headers = json.getJSONObject("headers");
+        assertThat(headers.getString("Goldencustomer")).isEqualTo("false");
+        
+    }
+
+    @Test
+    void givenGoldenCustomer_whenCallHeadersApi_thenResponseForGoldenCustomer() throws JSONException {
+
+        String url = "http://localhost:" + serverPort + "/api/headers";   
+        RequestEntity<Void> request = RequestEntity
+            .get(URI.create(url))
+            .header("Cookie", "customerId=baeldung")
+            .build();
+            
+        ResponseEntity<String> response = restTemplate.exchange(request, String.class);
+        assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);
+        
+        JSONObject json = new JSONObject(response.getBody());
+        JSONObject headers = json.getJSONObject("headers");
+        assertThat(headers.getString("Goldencustomer")).isEqualTo("true");
+        
+    }
+    
+}

spring-security-modules/pom.xml

@@ -0,0 +1,44 @@
+<?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>
+    <artifactId>spring-security-modules</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-security-modules</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <module>spring-security-acl</module>
+        <module>spring-security-angular/server</module>
+        <module>spring-security-cache-control</module>
+        <module>spring-security-core</module>
+        <module>spring-security-cors</module>
+        <module>spring-security-kerberos</module>
+        <module>spring-security-mvc</module>
+        <module>spring-security-mvc-boot</module>
+        <module>spring-security-mvc-custom</module>
+        <module>spring-security-mvc-digest-auth</module>
+        <module>spring-security-mvc-jsonview</module>
+        <module>spring-security-mvc-ldap</module>
+        <module>spring-security-mvc-login</module>
+        <module>spring-security-mvc-persisted-remember-me</module>
+        <module>spring-security-mvc-socket</module>
+        <module>spring-security-oidc</module>
+        <!--<module>spring-security-react</module> --> <!-- Module broken, fixing in BAEL-20772 -->
+
+        <module>spring-security-rest</module>
+        <module>spring-security-rest-basic-auth</module>
+        <module>spring-security-rest-custom</module>
+        <module>spring-security-sso</module>
+        <module>spring-security-stormpath</module>
+        <module>spring-security-thymeleaf</module>
+        <module>spring-security-x509</module>
+    </modules>
+
+</project>

spring-security-modules/spring-security-cors/pom.xml

@@ -3,15 +3,14 @@
          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-security-cors</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <name>spring-security-cors</name>
     <packaging>jar</packaging>
     <description>Spring Security CORS</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>spring-security-modules</artifactId>
-        <version>1.0.0-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
     </parent>
 
     <dependencyManagement>

spring-security-modules/spring-security-cors/src/test/java/com/baeldung/springbootsecuritycors/ResourceControllerUnitTest.java

@@ -18,7 +18,7 @@ import com.baeldung.springbootsecuritycors.basicauth.SpringBootSecurityApplicati
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = { SpringBootSecurityApplication.class })
-public class ResourceControllerTest {
+public class ResourceControllerUnitTest {
 
     private MockMvc mockMvc;
 

spring-security-sso/spring-security-sso-auth-server/README.md

@@ -1,3 +0,0 @@
-### Relevant Articles
-
-- [Simple Single Sign-On with Spring Security OAuth2](https://www.baeldung.com/sso-spring-security-oauth2)

spring-security-sso/spring-security-sso-ui-2/README.md

@@ -1,3 +0,0 @@
-### Relevant Articles:
-
-- [Simple Single Sign-On with Spring Security OAuth2](https://www.baeldung.com/sso-spring-security-oauth2)

spring-security-sso/spring-security-sso-ui/README.md

@@ -1,3 +0,0 @@
-### Relevant Articles
-
-- [Simple Single Sign-On with Spring Security OAuth2](https://www.baeldung.com/sso-spring-security-oauth2)