[BAEL-17473] - Fixed conflicts

akka-streams/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles
 
-- [Guide to Akka Streams](http://www.baeldung.com/akka-streams)
+- [Guide to Akka Streams](https://www.baeldung.com/akka-streams)

algorithms-genetic/README.md

@@ -1,6 +1,6 @@
 ## Relevant articles:
 
-- [Introduction to Jenetics Library](http://www.baeldung.com/jenetics)
-- [Ant Colony Optimization](http://www.baeldung.com/java-ant-colony-optimization)
+- [Introduction to Jenetics Library](https://www.baeldung.com/jenetics)
+- [Ant Colony Optimization](https://www.baeldung.com/java-ant-colony-optimization)
 - [Design a Genetic Algorithm in Java](https://www.baeldung.com/java-genetic-algorithm)
 - [The Traveling Salesman Problem in Java](https://www.baeldung.com/java-simulated-annealing-for-traveling-salesman)

algorithms-miscellaneous-2/README.md

@@ -1,10 +1,10 @@
 ## Relevant articles:
 
-- [Dijkstra Algorithm in Java](https://www.baeldung.com/java-dijkstra)
+- [Dijkstra Shortest Path Algorithm in Java](https://www.baeldung.com/java-dijkstra)
 - [Introduction to Cobertura](https://www.baeldung.com/cobertura)
 - [Test a Linked List for Cyclicity](https://www.baeldung.com/java-linked-list-cyclicity)
 - [Introduction to JGraphT](https://www.baeldung.com/jgrapht)
 - [A Maze Solver in Java](https://www.baeldung.com/java-solve-maze)
 - [Create a Sudoku Solver in Java](https://www.baeldung.com/java-sudoku)
 - [Displaying Money Amounts in Words](https://www.baeldung.com/java-money-into-words)
-- [A Collaborative Filtering Recommendation System in Java](https://www.baeldung.com/java-collaborative-filtering-recommendations)
+- [A Collaborative Filtering Recommendation System in Java](https://www.baeldung.com/java-collaborative-filtering-recommendations)

algorithms-miscellaneous-3/README.md

@@ -2,10 +2,10 @@
 
 - [Java Two Pointer Technique](https://www.baeldung.com/java-two-pointer-technique)
 - [Implementing Simple State Machines with Java Enums](https://www.baeldung.com/java-enum-simple-state-machine)
-- [Converting Between Roman and Arabic Numerals in Java](http://www.baeldung.com/java-convert-roman-arabic)
-- [Practical Java Examples of the Big O Notation](http://www.baeldung.com/java-algorithm-complexity)
+- [Converting Between Roman and Arabic Numerals in Java](https://www.baeldung.com/java-convert-roman-arabic)
+- [Practical Java Examples of the Big O Notation](https://www.baeldung.com/java-algorithm-complexity)
 - [Checking If a List Is Sorted in Java](https://www.baeldung.com/java-check-if-list-sorted)
 - [Checking if a Java Graph has a Cycle](https://www.baeldung.com/java-graph-has-a-cycle)
 - [A Guide to the Folding Technique in Java](https://www.baeldung.com/folding-hashing-technique)
 - [Creating a Triangle with for Loops in Java](https://www.baeldung.com/java-print-triangle)
-- [Efficient Word Frequency Calculator in Java](https://www.baeldung.com/java-word-frequency)
+- [Efficient Word Frequency Calculator in Java](https://www.baeldung.com/java-word-frequency)

algorithms-sorting/README.md

@@ -1,9 +1,10 @@
 ## Relevant articles:
 
-- [Bubble Sort in Java](http://www.baeldung.com/java-bubble-sort)
+- [Bubble Sort in Java](https://www.baeldung.com/java-bubble-sort)
 - [Merge Sort in Java](https://www.baeldung.com/java-merge-sort)
 - [Quicksort Algorithm Implementation in Java](https://www.baeldung.com/java-quicksort)
 - [Insertion Sort in Java](https://www.baeldung.com/java-insertion-sort)
 - [Heap Sort in Java](https://www.baeldung.com/java-heap-sort)
 - [Shell Sort in Java](https://www.baeldung.com/java-shell-sort)
 - [Counting Sort in Java](https://www.baeldung.com/java-counting-sort)
+- [Sorting Strings by Contained Numbers in Java](https://www.baeldung.com/java-sort-strings-contained-numbers)

animal-sniffer-mvn-plugin/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-[Introduction to Animal Sniffer Maven Plugin](http://www.baeldung.com/maven-animal-sniffer)
+[Introduction to Animal Sniffer Maven Plugin](https://www.baeldung.com/maven-animal-sniffer)

annotations/readme.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Java Annotation Processing and Creating a Builder](http://www.baeldung.com/java-annotation-processing-builder)
+- [Java Annotation Processing and Creating a Builder](https://www.baeldung.com/java-annotation-processing-builder)

antlr/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles: 
 
-- [Java with ANTLR](http://www.baeldung.com/java-antlr)
+- [Java with ANTLR](https://www.baeldung.com/java-antlr)

apache-avro/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Guide to Apache Avro](http://www.baeldung.com/java-apache-avro)
+- [Guide to Apache Avro](https://www.baeldung.com/java-apache-avro)

apache-bval/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Intro to Apache BVal](http://www.baeldung.com/apache-bval)
+- [Intro to Apache BVal](https://www.baeldung.com/apache-bval)

apache-curator/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles:
 
-- [Introduction to Apache Curator](http://www.baeldung.com/apache-curator)
+- [Introduction to Apache Curator](https://www.baeldung.com/apache-curator)

apache-cxf/README.md

@@ -1,6 +1,6 @@
 ## Relevant Articles:
-- [Introduction to Apache CXF Aegis Data Binding](http://www.baeldung.com/aegis-data-binding-in-apache-cxf)
-- [Apache CXF Support for RESTful Web Services](http://www.baeldung.com/apache-cxf-rest-api)
-- [A Guide to Apache CXF with Spring](http://www.baeldung.com/apache-cxf-with-spring)
-- [Introduction to Apache CXF](http://www.baeldung.com/introduction-to-apache-cxf)
+- [Introduction to Apache CXF Aegis Data Binding](https://www.baeldung.com/aegis-data-binding-in-apache-cxf)
+- [Apache CXF Support for RESTful Web Services](https://www.baeldung.com/apache-cxf-rest-api)
+- [A Guide to Apache CXF with Spring](https://www.baeldung.com/apache-cxf-with-spring)
+- [Introduction to Apache CXF](https://www.baeldung.com/introduction-to-apache-cxf)
 - [Server-Sent Events (SSE) In JAX-RS](https://www.baeldung.com/java-ee-jax-rs-sse)

apache-meecrowave/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles: 
 ================================
-- [Building a Microservice with Apache Meecrowave](http://www.baeldung.com/apache-meecrowave)
+- [Building a Microservice with Apache Meecrowave](https://www.baeldung.com/apache-meecrowave)

apache-olingo/README.md

@@ -1,3 +1,4 @@
 ## Relevant articles:
 
 - [OData Protocol Guide](https://www.baeldung.com/odata)
+- [Intro to OData with Olingo](https://www.baeldung.com/olingo)

apache-opennlp/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles
 
-- [Intro to Apache OpenNLP](http://www.baeldung.com/apache-open-nlp)
+- [Intro to Apache OpenNLP](https://www.baeldung.com/apache-open-nlp)

apache-poi/README.md

@@ -1,4 +1,4 @@
 ### Relevant Articles:
-- [Microsoft Word Processing in Java with Apache POI](http://www.baeldung.com/java-microsoft-word-with-apache-poi)
-- [Working with Microsoft Excel in Java](http://www.baeldung.com/java-microsoft-excel)
-- [Creating a MS PowerPoint Presentation in Java](http://www.baeldung.com/apache-poi-slideshow)
+- [Microsoft Word Processing in Java with Apache POI](https://www.baeldung.com/java-microsoft-word-with-apache-poi)
+- [Working with Microsoft Excel in Java](https://www.baeldung.com/java-microsoft-excel)
+- [Creating a MS PowerPoint Presentation in Java](https://www.baeldung.com/apache-poi-slideshow)

apache-shiro/README.md

@@ -1,2 +1,2 @@
 ### Relevant articles
-- [Introduction to Apache Shiro](http://www.baeldung.com/apache-shiro)
+- [Introduction to Apache Shiro](https://www.baeldung.com/apache-shiro)

apache-solrj/README.md

@@ -1,4 +1,4 @@
 ## Apache Solrj Tutorials Project
 
 ### Relevant Articles
-- [Guide to Solr in Java with Apache Solrj](http://www.baeldung.com/apache-solrj)
+- [Guide to Solr in Java with Apache Solrj](https://www.baeldung.com/apache-solrj)

apache-spark/README.md

@@ -1,4 +1,4 @@
 ### Relevant articles
 
-- [Introduction to Apache Spark](http://www.baeldung.com/apache-spark)
+- [Introduction to Apache Spark](https://www.baeldung.com/apache-spark)
 - [Building a Data Pipeline with Kafka, Spark Streaming and Cassandra](https://www.baeldung.com/kafka-spark-data-pipeline)

apache-thrift/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Working with Apache Thrift](http://www.baeldung.com/apache-thrift)
+- [Working with Apache Thrift](https://www.baeldung.com/apache-thrift)

apache-tika/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Content Analysis with Apache Tika](http://www.baeldung.com/apache-tika)
+- [Content Analysis with Apache Tika](https://www.baeldung.com/apache-tika)

apache-velocity/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Introduction to Apache Velocity](http://www.baeldung.com/apache-velocity)
+- [Introduction to Apache Velocity](https://www.baeldung.com/apache-velocity)

apache-zookeeper/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Getting Started with Java and Zookeeper](http://www.baeldung.com/java-zookeeper)
+- [Getting Started with Java and Zookeeper](https://www.baeldung.com/java-zookeeper)

asciidoctor/README.md

@@ -1,4 +1,4 @@
 ### Relevant articles
 
-- [Generating a Book with Asciidoctor](http://www.baeldung.com/asciidoctor-book)
-- [Introduction to Asciidoctor in Java](http://www.baeldung.com/asciidoctor)
+- [Generating a Book with Asciidoctor](https://www.baeldung.com/asciidoctor-book)
+- [Introduction to Asciidoctor in Java](https://www.baeldung.com/asciidoctor)

asm/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles:
 
-- [A Guide to Java Bytecode Manipulation with ASM](http://www.baeldung.com/java-asm)
+- [A Guide to Java Bytecode Manipulation with ASM](https://www.baeldung.com/java-asm)

atomix/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Introduction to Atomix](http://www.baeldung.com/atomix)
+- [Introduction to Atomix](https://www.baeldung.com/atomix)

autovalue/README.md

@@ -1,4 +1,4 @@
 ### Relevant Articles:
-- [Introduction to AutoValue](http://www.baeldung.com/introduction-to-autovalue)
-- [Introduction to AutoFactory](http://www.baeldung.com/autofactory)
+- [Introduction to AutoValue](https://www.baeldung.com/introduction-to-autovalue)
+- [Introduction to AutoFactory](https://www.baeldung.com/autofactory)
 - [Google AutoService](https://www.baeldung.com/google-autoservice)

aws-lambda/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles: 
-- [Using AWS Lambda with API Gateway](http://www.baeldung.com/aws-lambda-api-gateway)
-- [Introduction to AWS Serverless Application Model](http://www.baeldung.com/aws-serverless)
+- [Using AWS Lambda with API Gateway](https://www.baeldung.com/aws-lambda-api-gateway)
+- [Introduction to AWS Serverless Application Model](https://www.baeldung.com/aws-serverless)

aws/README.md

@@ -1,11 +1,11 @@
 ### Relevant articles
 
-- [AWS Lambda Using DynamoDB With Java](http://www.baeldung.com/aws-lambda-dynamodb-java)
-- [AWS S3 with Java](http://www.baeldung.com/aws-s3-java)
-- [AWS Lambda With Java](http://www.baeldung.com/java-aws-lambda)
-- [Managing EC2 Instances in Java](http://www.baeldung.com/ec2-java)
-- [Multipart Uploads in Amazon S3 with Java](http://www.baeldung.com/aws-s3-multipart-upload)
-- [Integration Testing with a Local DynamoDB Instance](http://www.baeldung.com/dynamodb-local-integration-tests)
-- [Using the JetS3t Java Client With Amazon S3](http://www.baeldung.com/jets3t-amazon-s3)
-- [Managing Amazon SQS Queues in Java](http://www.baeldung.com/aws-queues-java)
+- [AWS Lambda Using DynamoDB With Java](https://www.baeldung.com/aws-lambda-dynamodb-java)
+- [AWS S3 with Java](https://www.baeldung.com/aws-s3-java)
+- [AWS Lambda With Java](https://www.baeldung.com/java-aws-lambda)
+- [Managing EC2 Instances in Java](https://www.baeldung.com/ec2-java)
+- [Multipart Uploads in Amazon S3 with Java](https://www.baeldung.com/aws-s3-multipart-upload)
+- [Integration Testing with a Local DynamoDB Instance](https://www.baeldung.com/dynamodb-local-integration-tests)
+- [Using the JetS3t Java Client With Amazon S3](https://www.baeldung.com/jets3t-amazon-s3)
+- [Managing Amazon SQS Queues in Java](https://www.baeldung.com/aws-queues-java)
 - [Guide to AWS Aurora RDS with Java](https://www.baeldung.com/aws-aurora-rds-java)

axon/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles
 
-- [A Guide to the Axon Framework](http://www.baeldung.com/axon-cqrs-event-sourcing)
+- [A Guide to the Axon Framework](https://www.baeldung.com/axon-cqrs-event-sourcing)

azure/README.md

@@ -1,4 +1,4 @@
 ### Relevant Articles:
 
-- [Deploy a Spring Boot App to Azure](http://www.baeldung.com/spring-boot-azure)
+- [Deploy a Spring Boot App to Azure](https://www.baeldung.com/spring-boot-azure)
 

blade/README.md

@@ -1,5 +1,5 @@
 ### Relevant Articles: 
 
-- [Blade – A Complete Guidebook](http://www.baeldung.com/blade) 
+- [Blade – A Complete Guidebook](https://www.baeldung.com/blade) 
 
 Run Integration Tests with `mvn integration-test`

bootique/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Introduction to Bootique](http://www.baeldung.com/bootique)
+- [Introduction to Bootique](https://www.baeldung.com/bootique)

cdi/README.md

@@ -1,5 +1,5 @@
 ### Relevant Articles:
-- [CDI Interceptor vs Spring AspectJ](http://www.baeldung.com/cdi-interceptor-vs-spring-aspectj)
-- [An Introduction to CDI (Contexts and Dependency Injection) in Java](http://www.baeldung.com/java-ee-cdi)
+- [CDI Interceptor vs Spring AspectJ](https://www.baeldung.com/cdi-interceptor-vs-spring-aspectj)
+- [An Introduction to CDI (Contexts and Dependency Injection) in Java](https://www.baeldung.com/java-ee-cdi)
 - [Introduction to the Event Notification Model in CDI 2.0](https://www.baeldung.com/cdi-event-notification)
 

cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java

@@ -1,15 +1,16 @@
-package com.baeldung.cdi.cdi2observers.application;
-
-import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
-import javax.enterprise.inject.se.SeContainer;
-import javax.enterprise.inject.se.SeContainerInitializer;
-
-public class BootstrappingApplication {
-    
-    public static void main(String... args) {
-        SeContainerInitializer containerInitializer = SeContainerInitializer.newInstance();
-        try (SeContainer container = containerInitializer.initialize()) {
-            container.getBeanManager().fireEvent(new ExampleEvent("Welcome to Baeldung!"));
-        }
-    }
-}
+package com.baeldung.cdi2observers.application;
+
+import com.baeldung.cdi2observers.events.ExampleEvent;
+
+import javax.enterprise.inject.se.SeContainer;
+import javax.enterprise.inject.se.SeContainerInitializer;
+
+public class BootstrappingApplication {
+    
+    public static void main(String... args) {
+        SeContainerInitializer containerInitializer = SeContainerInitializer.newInstance();
+        try (SeContainer container = containerInitializer.initialize()) {
+            container.getBeanManager().fireEvent(new ExampleEvent("Welcome to Baeldung!"));
+        }
+    }
+}

cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java

@@ -1,14 +1,14 @@
-package com.baeldung.cdi.cdi2observers.events;
-
-public class ExampleEvent {
-    
-   private final String eventMessage;
-
-    public ExampleEvent(String eventMessage) {
-        this.eventMessage = eventMessage;
-    }
-    
-    public String getEventMessage() {
-        return eventMessage;
-    }
-}
+package com.baeldung.cdi2observers.events;
+
+public class ExampleEvent {
+    
+   private final String eventMessage;
+
+    public ExampleEvent(String eventMessage) {
+        this.eventMessage = eventMessage;
+    }
+    
+    public String getEventMessage() {
+        return eventMessage;
+    }
+}

cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java

@@ -1,14 +1,14 @@
-package com.baeldung.cdi.cdi2observers.events;
-
-import javax.enterprise.event.Event;
-import javax.inject.Inject;
-
-public class ExampleEventSource {
-    
-    @Inject
-    Event<ExampleEvent> exampleEvent;
-    
-    public void fireEvent() {
-        exampleEvent.fireAsync(new ExampleEvent("Welcome to Baeldung!"));
-    }   
-}
+package com.baeldung.cdi2observers.events;
+
+import javax.enterprise.event.Event;
+import javax.inject.Inject;
+
+public class ExampleEventSource {
+    
+    @Inject
+    Event<ExampleEvent> exampleEvent;
+    
+    public void fireEvent() {
+        exampleEvent.fireAsync(new ExampleEvent("Welcome to Baeldung!"));
+    }   
+}

cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java

@@ -1,12 +1,13 @@
-package com.baeldung.cdi.cdi2observers.observers;
-
-import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
-import javax.annotation.Priority;
-import javax.enterprise.event.Observes;
-
-public class AnotherExampleEventObserver {
-    
-    public String onEvent(@Observes @Priority(2) ExampleEvent event) {
-        return event.getEventMessage();
-    }   
-}
+package com.baeldung.cdi2observers.observers;
+
+import com.baeldung.cdi2observers.events.ExampleEvent;
+
+import javax.annotation.Priority;
+import javax.enterprise.event.Observes;
+
+public class AnotherExampleEventObserver {
+    
+    public String onEvent(@Observes @Priority(2) ExampleEvent event) {
+        return event.getEventMessage();
+    }   
+}

cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java

@@ -1,13 +1,13 @@
-package com.baeldung.cdi.cdi2observers.observers;
-
-import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
-import com.baeldung.cdi.cdi2observers.services.TextService;
-import javax.annotation.Priority;
-import javax.enterprise.event.Observes;
-
-public class ExampleEventObserver {
-    
-    public String onEvent(@Observes @Priority(1) ExampleEvent event, TextService textService) {
-        return textService.parseText(event.getEventMessage());
-    } 
-}
+package com.baeldung.cdi2observers.observers;
+
+import com.baeldung.cdi2observers.events.ExampleEvent;
+import com.baeldung.cdi2observers.services.TextService;
+import javax.annotation.Priority;
+import javax.enterprise.event.Observes;
+
+public class ExampleEventObserver {
+    
+    public String onEvent(@Observes @Priority(1) ExampleEvent event, TextService textService) {
+        return textService.parseText(event.getEventMessage());
+    } 
+}

cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java

@@ -1,8 +1,8 @@
-package com.baeldung.cdi.cdi2observers.services;
-
-public class TextService {
-
-    public String parseText(String text) {
-        return text.toUpperCase();
-    }
-}
+package com.baeldung.cdi2observers.services;
+
+public class TextService {
+
+    public String parseText(String text) {
+        return text.toUpperCase();
+    }
+}

cdi/src/main/resources/META-INF/beans.xml

@@ -1,7 +1,8 @@
-<beans xmlns="http://java.sun.com/xml/ns/javaee"
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
-      http://java.sun.com/xml/ns/javaee/beans_1_2.xsd">
+       xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
+       bean-discovery-mode="all">
     <interceptors>
         <class>com.baeldung.interceptor.AuditedInterceptor</class>
     </interceptors>

cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java

@@ -1,14 +1,15 @@
-package com.baeldung.cdi.cdi2observers.tests;
-
-import com.baeldung.cdi.cdi2observers.services.TextService;
-import static org.assertj.core.api.Assertions.assertThat;
-import org.junit.Test;
-
-public class TextServiceUnitTest {
-
-    @Test
-    public void givenTextServiceInstance_whenCalledparseText_thenCorrect() {
-        TextService textService = new TextService();
-        assertThat(textService.parseText("Baeldung")).isEqualTo("BAELDUNG");
-    }
-}
+package com.baeldung.test.cdi2observers.tests;
+
+import com.baeldung.cdi2observers.services.TextService;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class TextServiceUnitTest {
+
+    @Test
+    public void givenTextServiceInstance_whenCalledparseText_thenCorrect() {
+        TextService textService = new TextService();
+        assertThat(textService.parseText("Baeldung")).isEqualTo("BAELDUNG");
+    }
+}

cdi/src/test/java/com/baeldung/test/dependencyinjection/TimeLoggerFactoryUnitTest.java

@@ -6,7 +6,6 @@ import static org.assertj.core.api.Assertions.assertThat;
 import org.junit.Test;
 
 public class TimeLoggerFactoryUnitTest {
-    
     @Test
     public void givenTimeLoggerFactory_whenCalledgetTimeLogger_thenOneAssertion() {
         TimeLoggerFactory timeLoggerFactory = new TimeLoggerFactory();

checker-plugin/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles
 
-- [The Checker Framework – Pluggable Type Systems for Java](http://www.baeldung.com/checker-framework)
+- [The Checker Framework – Pluggable Type Systems for Java](https://www.baeldung.com/checker-framework)

core-groovy-2/README.md

@@ -2,10 +2,10 @@
 
 ## Relevant articles:
 
-- [String Matching in Groovy](http://www.baeldung.com/)
 - [Template Engines in Groovy](https://www.baeldung.com/groovy-template-engines)
 - [Groovy def Keyword](https://www.baeldung.com/groovy-def-keyword)
 - [Pattern Matching in Strings in Groovy](https://www.baeldung.com/groovy-pattern-matching)
 - [Working with XML in Groovy](https://www.baeldung.com/groovy-xml)
 - [Integrating Groovy into Java Applications](https://www.baeldung.com/groovy-java-applications)
 - [Concatenate Strings with Groovy](https://www.baeldung.com/groovy-concatenate-strings)
+- [Metaprogramming in Groovy](https://www.baeldung.com/groovy-metaprogramming)

core-groovy/README.md

@@ -2,8 +2,8 @@
 
 ## Relevant articles:
 
-- [JDBC with Groovy](http://www.baeldung.com/jdbc-groovy)
-- [Working with JSON in Groovy](http://www.baeldung.com/groovy-json)
+- [JDBC with Groovy](https://www.baeldung.com/jdbc-groovy)
+- [Working with JSON in Groovy](https://www.baeldung.com/groovy-json)
 - [Reading a File in Groovy](https://www.baeldung.com/groovy-file-read)
 - [Types of Strings in Groovy](https://www.baeldung.com/groovy-strings)
 - [A Quick Guide to Iterating a Map in Groovy](https://www.baeldung.com/groovy-map-iterating)
@@ -12,4 +12,4 @@
 - [Finding Elements in Collections in Groovy](https://www.baeldung.com/groovy-collections-find-elements)
 - [Lists in Groovy](https://www.baeldung.com/groovy-lists)
 - [Converting a String to a Date in Groovy](https://www.baeldung.com/groovy-string-to-date)
-- [Guide to I/O in Groovy](https://www.baeldung.com/groovy-io)
+- [Guide to I/O in Groovy](https://www.baeldung.com/groovy-io)

core-java-modules/core-java-8-2/README.md

@@ -5,6 +5,6 @@
 ### Relevant Articles: 
 - [Anonymous Classes in Java](http://www.baeldung.com/)
 - [How to Delay Code Execution in Java](https://www.baeldung.com/java-delay-code-execution)
-- [Run JAR Application With Command Line Arguments](https://www.baeldung.com/java-run-jar-with-arguments)
+- [Run a Java Application from the Command Line](https://www.baeldung.com/java-run-jar-with-arguments)
 - [Java 8 Stream skip() vs limit()](https://www.baeldung.com/java-stream-skip-vs-limit)
 - [Guide to Java BiFunction Interface](https://www.baeldung.com/java-bifunction-interface)

core-java-modules/core-java-arrays/README.md

@@ -10,6 +10,7 @@
 - [Multi-Dimensional Arrays In Java](https://www.baeldung.com/java-jagged-arrays)
 - [Find Sum and Average in a Java Array](https://www.baeldung.com/java-array-sum-average)
 - [Arrays in Java: A Reference Guide](https://www.baeldung.com/java-arrays-guide)
-- [How to Invert an Array in Java](https://www.baeldung.com/java-invert-array)
+- [Read and Write User Input in Java](https://www.baeldung.com/java-console-input-output)
+- [How to Reverse an Array in Java](http://www.baeldung.com/java-invert-array)
 - [Sorting Arrays in Java](https://www.baeldung.com/java-sorting-arrays)
 - [Checking If an Array Is Sorted in Java](https://www.baeldung.com/java-check-sorted-array)

core-java-modules/core-java-lang-oop-2/README.md

@@ -13,4 +13,5 @@
 - [Immutable Objects in Java](https://www.baeldung.com/java-immutable-object)
 - [Inheritance and Composition (Is-a vs Has-a relationship) in Java](https://www.baeldung.com/java-inheritance-composition)
 - [A Guide to Constructors in Java](https://www.baeldung.com/java-constructors)
-- [Static and Default Methods in Interfaces in Java](https://www.baeldung.com/java-static-default-methods)
+- [Composition, Aggregation, and Association in Java](https://www.baeldung.com/java-composition-aggregation-association)
+- [Static and Default Methods in Interfaces in Java](https://www.baeldung.com/java-static-default-methods)

core-java-modules/core-java-lang-operators/README.md

@@ -0,0 +1,6 @@
+## Relevant Articles:
+- [Guide to the Diamond Operator in Java](https://www.baeldung.com/java-diamond-operator)
+- [Ternary Operator In Java](https://www.baeldung.com/java-ternary-operator)
+- [The Modulo Operator in Java](https://www.baeldung.com/modulo-java)
+- [Java instanceof Operator](https://www.baeldung.com/java-instanceof)
+- [A Guide to Increment and Decrement Unary Operators in Java](https://www.baeldung.com/java-unary-operators)

core-java-modules/core-java-lang/README.md

@@ -38,3 +38,4 @@
 - [Attaching Values to Java Enum](https://www.baeldung.com/java-enum-values)
 - [Variable Scope in Java](https://www.baeldung.com/java-variable-scope)
 - [Java Classes and Objects](https://www.baeldung.com/java-classes-objects)
+- [A Guide to Java Enums](https://www.baeldung.com/a-guide-to-java-enums)

core-java-modules/core-java-security/README.md

@@ -11,3 +11,4 @@
 - [SHA-256 and SHA3-256 Hashing in Java](https://www.baeldung.com/sha-256-hashing-java)
 - [Enabling TLS v1.2 in Java 7](https://www.baeldung.com/java-7-tls-v12)
 - [The Java SecureRandom Class](https://www.baeldung.com/java-secure-random)
+- [An Introduction to Java SASL](https://www.baeldung.com/java-sasl)

core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt

@@ -0,0 +1,34 @@
+package com.baeldung.lists
+
+import org.junit.jupiter.api.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class ListsUnitTest {
+
+    var batmans: List<String> = listOf("Christian Bale", "Michael Keaton", "Ben Affleck", "George Clooney")
+
+    @Test
+    fun whenFindASpecificItem_thenItemIsReturned() {
+        //Returns the first element matching the given predicate, or null if no such element was found.
+        val theFirstBatman = batmans.find { actor -> "Michael Keaton".equals(actor) }
+        assertEquals(theFirstBatman, "Michael Keaton")
+    }
+
+    @Test
+    fun whenFilterWithPredicate_thenMatchingItemsAreReturned() {
+        //Returns a list containing only elements matching the given predicate.
+        val theCoolestBatmans = batmans.filter { actor -> actor.contains("a") }
+        assertTrue(theCoolestBatmans.contains("Christian Bale") && theCoolestBatmans.contains("Michael Keaton"))
+    }
+
+    @Test
+    fun whenFilterNotWithPredicate_thenMatchingItemsAreReturned() {
+        //Returns a list containing only elements not matching the given predicate.
+        val theMehBatmans = batmans.filterNot { actor -> actor.contains("a") }
+        assertFalse(theMehBatmans.contains("Christian Bale") && theMehBatmans.contains("Michael Keaton"))
+        assertTrue(theMehBatmans.contains("Ben Affleck") && theMehBatmans.contains("George Clooney"))
+    }
+
+}

core-kotlin/README.md

@@ -1,36 +1,36 @@
 ## Relevant articles:
 
-- [Introduction to the Kotlin Language](http://www.baeldung.com/kotlin)
-- [Guide to the “when{}” Block in Kotlin](http://www.baeldung.com/kotlin-when)
-- [Comprehensive Guide to Null Safety in Kotlin](http://www.baeldung.com/kotlin-null-safety)
-- [Kotlin Java Interoperability](http://www.baeldung.com/kotlin-java-interoperability)
-- [Difference Between “==” and “===” operators in Kotlin](http://www.baeldung.com/kotlin-equality-operators)
-- [Generics in Kotlin](http://www.baeldung.com/kotlin-generics)
-- [Introduction to Kotlin Coroutines](http://www.baeldung.com/kotlin-coroutines)
-- [Destructuring Declarations in Kotlin](http://www.baeldung.com/kotlin-destructuring-declarations)
-- [Lazy Initialization in Kotlin](http://www.baeldung.com/kotlin-lazy-initialization)
-- [Overview of Kotlin Collections API](http://www.baeldung.com/kotlin-collections-api)
-- [Converting a List to Map in Kotlin](http://www.baeldung.com/kotlin-list-to-map)
-- [Data Classes in Kotlin](http://www.baeldung.com/kotlin-data-classes)
-- [Delegated Properties in Kotlin](http://www.baeldung.com/kotlin-delegated-properties)
-- [Sealed Classes in Kotlin](http://www.baeldung.com/kotlin-sealed-classes)
-- [JUnit 5 for Kotlin Developers](http://www.baeldung.com/junit-5-kotlin)
-- [Extension Methods in Kotlin](http://www.baeldung.com/kotlin-extension-methods)
-- [Infix Functions in Kotlin](http://www.baeldung.com/kotlin-infix-functions)
-- [Try-with-resources in Kotlin](http://www.baeldung.com/kotlin-try-with-resources)
-- [Regular Expressions in Kotlin](http://www.baeldung.com/kotlin-regular-expressions)
-- [Objects in Kotlin](http://www.baeldung.com/kotlin-objects)
-- [Reading from a File in Kotlin](http://www.baeldung.com/kotlin-read-file)
-- [Guide to Kotlin @JvmField](http://www.baeldung.com/kotlin-jvm-field-annotation)
-- [Filtering Kotlin Collections](http://www.baeldung.com/kotlin-filter-collection)
-- [Writing to a File in Kotlin](http://www.baeldung.com/kotlin-write-file)
-- [Lambda Expressions in Kotlin](http://www.baeldung.com/kotlin-lambda-expressions)
-- [Kotlin String Templates](http://www.baeldung.com/kotlin-string-template)
-- [Working with Enums in Kotlin](http://www.baeldung.com/kotlin-enum)
-- [Create a Java and Kotlin Project with Maven](http://www.baeldung.com/kotlin-maven-java-project)
-- [Reflection with Kotlin](http://www.baeldung.com/kotlin-reflection)
-- [Get a Random Number in Kotlin](http://www.baeldung.com/kotlin-random-number)
-- [Idiomatic Logging in Kotlin](http://www.baeldung.com/kotlin-logging)
+- [Introduction to the Kotlin Language](https://www.baeldung.com/kotlin)
+- [Guide to the “when{}” Block in Kotlin](https://www.baeldung.com/kotlin-when)
+- [Comprehensive Guide to Null Safety in Kotlin](https://www.baeldung.com/kotlin-null-safety)
+- [Kotlin Java Interoperability](https://www.baeldung.com/kotlin-java-interoperability)
+- [Difference Between “==” and “===” operators in Kotlin](https://www.baeldung.com/kotlin-equality-operators)
+- [Generics in Kotlin](https://www.baeldung.com/kotlin-generics)
+- [Introduction to Kotlin Coroutines](https://www.baeldung.com/kotlin-coroutines)
+- [Destructuring Declarations in Kotlin](https://www.baeldung.com/kotlin-destructuring-declarations)
+- [Lazy Initialization in Kotlin](https://www.baeldung.com/kotlin-lazy-initialization)
+- [Overview of Kotlin Collections API](https://www.baeldung.com/kotlin-collections-api)
+- [Converting a List to Map in Kotlin](https://www.baeldung.com/kotlin-list-to-map)
+- [Data Classes in Kotlin](https://www.baeldung.com/kotlin-data-classes)
+- [Delegated Properties in Kotlin](https://www.baeldung.com/kotlin-delegated-properties)
+- [Sealed Classes in Kotlin](https://www.baeldung.com/kotlin-sealed-classes)
+- [JUnit 5 for Kotlin Developers](https://www.baeldung.com/junit-5-kotlin)
+- [Extension Methods in Kotlin](https://www.baeldung.com/kotlin-extension-methods)
+- [Infix Functions in Kotlin](https://www.baeldung.com/kotlin-infix-functions)
+- [Try-with-resources in Kotlin](https://www.baeldung.com/kotlin-try-with-resources)
+- [Regular Expressions in Kotlin](https://www.baeldung.com/kotlin-regular-expressions)
+- [Objects in Kotlin](https://www.baeldung.com/kotlin-objects)
+- [Reading from a File in Kotlin](https://www.baeldung.com/kotlin-read-file)
+- [Guide to Kotlin @JvmField](https://www.baeldung.com/kotlin-jvm-field-annotation)
+- [Filtering Kotlin Collections](https://www.baeldung.com/kotlin-filter-collection)
+- [Writing to a File in Kotlin](https://www.baeldung.com/kotlin-write-file)
+- [Lambda Expressions in Kotlin](https://www.baeldung.com/kotlin-lambda-expressions)
+- [Kotlin String Templates](https://www.baeldung.com/kotlin-string-template)
+- [Working with Enums in Kotlin](https://www.baeldung.com/kotlin-enum)
+- [Create a Java and Kotlin Project with Maven](https://www.baeldung.com/kotlin-maven-java-project)
+- [Reflection with Kotlin](https://www.baeldung.com/kotlin-reflection)
+- [Get a Random Number in Kotlin](https://www.baeldung.com/kotlin-random-number)
+- [Idiomatic Logging in Kotlin](https://www.baeldung.com/kotlin-logging)
 - [Kotlin Constructors](https://www.baeldung.com/kotlin-constructors)
 - [Creational Design Patterns in Kotlin: Builder](https://www.baeldung.com/kotlin-builder-pattern)
 - [Kotlin Nested and Inner Classes](https://www.baeldung.com/kotlin-inner-classes)

couchbase/README.md

@@ -1,11 +1,11 @@
 ## Couchbase SDK Tutorial Project
 
 ### Relevant Articles:
-- [Introduction to Couchbase SDK for Java](http://www.baeldung.com/java-couchbase-sdk)
-- [Using Couchbase in a Spring Application](http://www.baeldung.com/couchbase-sdk-spring)
-- [Asynchronous Batch Operations in Couchbase](http://www.baeldung.com/async-batch-operations-in-couchbase)
-- [Querying Couchbase with MapReduce Views](http://www.baeldung.com/couchbase-query-mapreduce-view)
-- [Querying Couchbase with N1QL](http://www.baeldung.com/n1ql-couchbase)
+- [Introduction to Couchbase SDK for Java](https://www.baeldung.com/java-couchbase-sdk)
+- [Using Couchbase in a Spring Application](https://www.baeldung.com/couchbase-sdk-spring)
+- [Asynchronous Batch Operations in Couchbase](https://www.baeldung.com/async-batch-operations-in-couchbase)
+- [Querying Couchbase with MapReduce Views](https://www.baeldung.com/couchbase-query-mapreduce-view)
+- [Querying Couchbase with N1QL](https://www.baeldung.com/n1ql-couchbase)
 
 ### Overview
 This Maven project contains the Java code for the Couchbase entities and Spring services

dagger/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles:
 
-- [Introduction to Dagger 2](http://www.baeldung.com/dagger-2)
+- [Introduction to Dagger 2](https://www.baeldung.com/dagger-2)

deeplearning4j/README.md

@@ -2,4 +2,4 @@
 This is a sample project for the [deeplearning4j](https://deeplearning4j.org) library.
 
 ### Relevant Articles:
-- [A Guide to Deeplearning4j](http://www.baeldung.com/deeplearning4j)
+- [A Guide to Deeplearning4j](https://www.baeldung.com/deeplearning4j)

disruptor/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Concurrency with LMAX Disruptor – An Introduction](http://www.baeldung.com/lmax-disruptor-concurrency)
+- [Concurrency with LMAX Disruptor – An Introduction](https://www.baeldung.com/lmax-disruptor-concurrency)

docker/README.md

@@ -0,0 +1,3 @@
+## Relevant Articles:
+
+- [Introduction to Docker Compose](https://www.baeldung.com/docker-compose)

dozer/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [A Guide to Mapping With Dozer](http://www.baeldung.com/dozer)
+- [A Guide to Mapping With Dozer](https://www.baeldung.com/dozer)

drools/README.MD

@@ -1,4 +1,4 @@
 ### Relevant Articles:
-- [Introduction to Drools](http://www.baeldung.com/drools)
-- [Drools Using Rules from Excel Files](http://www.baeldung.com/drools-excel)
-- [An Example of Backward Chaining in Drools](http://www.baeldung.com/drools-backward-chaining)
+- [Introduction to Drools](https://www.baeldung.com/drools)
+- [Drools Using Rules from Excel Files](https://www.baeldung.com/drools-excel)
+- [An Example of Backward Chaining in Drools](https://www.baeldung.com/drools-backward-chaining)

dubbo/README.md

@@ -1,4 +1,4 @@
 ## Relevant articles:
 
-- [Introduction to Dubbo](http://www.baeldung.com/dubbo)
+- [Introduction to Dubbo](https://www.baeldung.com/dubbo)
 

ethereum/README.md

@@ -1,6 +1,6 @@
 ## Ethereum
 
 ### Relevant Articles:
-- [Introduction to EthereumJ](http://www.baeldung.com/ethereumj)
-- [Creating and Deploying Smart Contracts with Solidity](http://www.baeldung.com/smart-contracts-ethereum-solidity)
-- [Lightweight Ethereum Clients Using Web3j](http://www.baeldung.com/web3j)
+- [Introduction to EthereumJ](https://www.baeldung.com/ethereumj)
+- [Creating and Deploying Smart Contracts with Solidity](https://www.baeldung.com/smart-contracts-ethereum-solidity)
+- [Lightweight Ethereum Clients Using Web3j](https://www.baeldung.com/web3j)

feign/README.md

@@ -6,5 +6,5 @@ This is the implementation of a [spring-hypermedia-api][1] client using Feign.
 
 ### Relevant Articles:
 
-- [Intro to Feign](http://www.baeldung.com/intro-to-feign)
-- [Introduction to SLF4J](http://www.baeldung.com/slf4j-with-log4j2-logback)
+- [Intro to Feign](https://www.baeldung.com/intro-to-feign)
+- [Introduction to SLF4J](https://www.baeldung.com/slf4j-with-log4j2-logback)

geotools/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles
 
-[Introduction to GeoTools](http://www.baeldung.com/geo-tools)
+[Introduction to GeoTools](https://www.baeldung.com/geo-tools)

google-cloud/README.md

@@ -1,7 +1,7 @@
 ## Google Cloud Tutorial Project
 
 ### Relevant Article:
-- [Intro to Google Cloud Storage With Java](http://www.baeldung.com/java-google-cloud-storage)
+- [Intro to Google Cloud Storage With Java](https://www.baeldung.com/java-google-cloud-storage)
 
 ### Overview
 This Maven project contains the Java code for the article linked above.

google-web-toolkit/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles: 
-- [Introduction to GWT](http://www.baeldung.com/gwt)
+- [Introduction to GWT](https://www.baeldung.com/gwt)

gradle/README.md

@@ -1,6 +1,6 @@
 ## Relevant articles:
-- [Introduction to Gradle](http://www.baeldung.com/gradle)
-- [Writing Custom Gradle Plugins](http://www.baeldung.com/gradle-create-plugin)
-- [Creating a Fat Jar in Gradle](http://www.baeldung.com/gradle-fat-jar)
-- [A Custom Task in Gradle](http://www.baeldung.com/gradle-custom-task)
+- [Introduction to Gradle](https://www.baeldung.com/gradle)
+- [Writing Custom Gradle Plugins](https://www.baeldung.com/gradle-create-plugin)
+- [Creating a Fat Jar in Gradle](https://www.baeldung.com/gradle-fat-jar)
+- [A Custom Task in Gradle](https://www.baeldung.com/gradle-custom-task)
 - [Using JUnit 5 with Gradle](https://www.baeldung.com/junit-5-gradle)

grails/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles
 
-- [Build an MVC Web Application with Grails](http://www.baeldung.com/grails-mvc-application)
+- [Build an MVC Web Application with Grails](https://www.baeldung.com/grails-mvc-application)

graphql/graphql-java/README.md

@@ -1,3 +1,3 @@
 ## Relevant articles:
 
-- [Introduction to GraphQL](http://www.baeldung.com/graphql)
+- [Introduction to GraphQL](https://www.baeldung.com/graphql)

grpc/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Introduction to gRPC](http://www.baeldung.com/grpc-introduction)
+- [Introduction to gRPC](https://www.baeldung.com/grpc-introduction)

gson/README.md

@@ -4,9 +4,9 @@
 
 
 ### Relevant Articles: 
-- [Gson Deserialization Cookbook](http://www.baeldung.com/gson-deserialization-guide)
-- [Jackson vs Gson](http://www.baeldung.com/jackson-vs-gson)
-- [Exclude Fields from Serialization in Gson](http://www.baeldung.com/gson-exclude-fields-serialization)
+- [Gson Deserialization Cookbook](https://www.baeldung.com/gson-deserialization-guide)
+- [Jackson vs Gson](https://www.baeldung.com/jackson-vs-gson)
+- [Exclude Fields from Serialization in Gson](https://www.baeldung.com/gson-exclude-fields-serialization)
 - [Save Data to a JSON File with Gson](https://www.baeldung.com/gson-save-file)
 - [Convert JSON to a Map Using Gson](https://www.baeldung.com/gson-json-to-map)
 - [Working with Primitive Values in Gson](https://www.baeldung.com/java-gson-primitives)

guava-collections-set/README.md

@@ -2,7 +2,7 @@
 
 ## Relevant Articles:
 
-- [Guava – Sets](http://www.baeldung.com/guava-sets)
-- [Guide to Guava RangeSet](http://www.baeldung.com/guava-rangeset)
-- [Guava Set + Function = Map](http://www.baeldung.com/guava-set-function-map-tutorial)
+- [Guava – Sets](https://www.baeldung.com/guava-sets)
+- [Guide to Guava RangeSet](https://www.baeldung.com/guava-rangeset)
+- [Guava Set + Function = Map](https://www.baeldung.com/guava-set-function-map-tutorial)
 - [Guide to Guava Multiset](https://www.baeldung.com/guava-multiset)

guava-collections/README.md

@@ -4,17 +4,17 @@
 
 
 ### Relevant Articles: 
-- [Guava Collections Cookbook](http://www.baeldung.com/guava-collections)
-- [Guava Ordering Cookbook](http://www.baeldung.com/guava-order)
-- [Hamcrest Collections Cookbook](http://www.baeldung.com/hamcrest-collections-arrays)
-- [Partition a List in Java](http://www.baeldung.com/java-list-split)
-- [Filtering and Transforming Collections in Guava](http://www.baeldung.com/guava-filter-and-transform-a-collection)
-- [Guava – Join and Split Collections](http://www.baeldung.com/guava-joiner-and-splitter-tutorial)
-- [Guava – Lists](http://www.baeldung.com/guava-lists)
-- [Guava – Maps](http://www.baeldung.com/guava-maps)
-- [Guide to Guava Multimap](http://www.baeldung.com/guava-multimap)
-- [Guide to Guava RangeMap](http://www.baeldung.com/guava-rangemap)
-- [Guide to Guava MinMaxPriorityQueue and EvictingQueue](http://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
+- [Guava Collections Cookbook](https://www.baeldung.com/guava-collections)
+- [Guava Ordering Cookbook](https://www.baeldung.com/guava-order)
+- [Hamcrest Collections Cookbook](https://www.baeldung.com/hamcrest-collections-arrays)
+- [Partition a List in Java](https://www.baeldung.com/java-list-split)
+- [Filtering and Transforming Collections in Guava](https://www.baeldung.com/guava-filter-and-transform-a-collection)
+- [Guava – Join and Split Collections](https://www.baeldung.com/guava-joiner-and-splitter-tutorial)
+- [Guava – Lists](https://www.baeldung.com/guava-lists)
+- [Guava – Maps](https://www.baeldung.com/guava-maps)
+- [Guide to Guava Multimap](https://www.baeldung.com/guava-multimap)
+- [Guide to Guava RangeMap](https://www.baeldung.com/guava-rangemap)
+- [Guide to Guava MinMaxPriorityQueue and EvictingQueue](https://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
 - [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
-- [Guide to Guava Table](http://www.baeldung.com/guava-table)
-- [Guide to Guava ClassToInstanceMap](http://www.baeldung.com/guava-class-to-instance-map)
+- [Guide to Guava Table](https://www.baeldung.com/guava-table)
+- [Guide to Guava ClassToInstanceMap](https://www.baeldung.com/guava-class-to-instance-map)

guava-io/README.md

@@ -1,4 +1,4 @@
 ### Relevant Articles: 
 
-- [Using Guava CountingOutputStream](http://www.baeldung.com/guava-counting-outputstream)
-- [Guava – Write to File, Read from File](http://www.baeldung.com/guava-write-to-file-read-from-file)
+- [Using Guava CountingOutputStream](https://www.baeldung.com/guava-counting-outputstream)
+- [Guava – Write to File, Read from File](https://www.baeldung.com/guava-write-to-file-read-from-file)

guava/README.md

@@ -2,14 +2,14 @@
 ## Guava Examples
 
 ### Relevant Articles: 
-- [Guava Functional Cookbook](http://www.baeldung.com/guava-functions-predicates)
-- [Guide to Guava’s Ordering](http://www.baeldung.com/guava-ordering)
-- [Guide to Guava’s PreConditions](http://www.baeldung.com/guava-preconditions)
-- [Introduction to Guava CacheLoader](http://www.baeldung.com/guava-cacheloader)
-- [Introduction to Guava Memoizer](http://www.baeldung.com/guava-memoizer)
-- [Guide to Guava’s EventBus](http://www.baeldung.com/guava-eventbus)
-- [Guide to Guava’s Reflection Utilities](http://www.baeldung.com/guava-reflection)
-- [Guide to Mathematical Utilities in Guava](http://www.baeldung.com/guava-math)
-- [Bloom Filter in Java using Guava](http://www.baeldung.com/guava-bloom-filter)
-- [Quick Guide to the Guava RateLimiter](http://www.baeldung.com/guava-rate-limiter)
+- [Guava Functional Cookbook](https://www.baeldung.com/guava-functions-predicates)
+- [Guide to Guava’s Ordering](https://www.baeldung.com/guava-ordering)
+- [Guide to Guava’s PreConditions](https://www.baeldung.com/guava-preconditions)
+- [Introduction to Guava CacheLoader](https://www.baeldung.com/guava-cacheloader)
+- [Introduction to Guava Memoizer](https://www.baeldung.com/guava-memoizer)
+- [Guide to Guava’s EventBus](https://www.baeldung.com/guava-eventbus)
+- [Guide to Guava’s Reflection Utilities](https://www.baeldung.com/guava-reflection)
+- [Guide to Mathematical Utilities in Guava](https://www.baeldung.com/guava-math)
+- [Bloom Filter in Java using Guava](https://www.baeldung.com/guava-bloom-filter)
+- [Quick Guide to the Guava RateLimiter](https://www.baeldung.com/guava-rate-limiter)
 

guice/README.md

@@ -1,5 +1,5 @@
 ## Google Guice Tutorials Project
 
 ### Relevant Articles
-- [Guide to Google Guice](http://www.baeldung.com/guice)
+- [Guide to Google Guice](https://www.baeldung.com/guice)
 - [Guice vs Spring – Dependency Injection](https://www.baeldung.com/guice-spring-dependency-injection)

hazelcast/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles:
-- [Guide to Hazelcast with Java](http://www.baeldung.com/java-hazelcast)
+- [Guide to Hazelcast with Java](https://www.baeldung.com/java-hazelcast)
 - [Introduction to Hazelcast Jet](https://www.baeldung.com/hazelcast-jet)

httpclient-simple/README.md

@@ -1,12 +1,12 @@
 =========
 ## This module contains articles that are part of the HTTPClient Ebook
 
-- [HttpClient 4 – Get the Status Code](http://www.baeldung.com/httpclient-status-code)
-- [HttpClient with SSL](http://www.baeldung.com/httpclient-ssl)
-- [HttpClient Timeout](http://www.baeldung.com/httpclient-timeout)
-- [HttpClient 4 – Send Custom Cookie](http://www.baeldung.com/httpclient-4-cookies)
-- [Custom HTTP Header with the HttpClient](http://www.baeldung.com/httpclient-custom-http-header)
-- [HttpClient Basic Authentication](http://www.baeldung.com/httpclient-4-basic-authentication)
+- [HttpClient 4 – Get the Status Code](https://www.baeldung.com/httpclient-status-code)
+- [HttpClient with SSL](https://www.baeldung.com/httpclient-ssl)
+- [HttpClient Timeout](https://www.baeldung.com/httpclient-timeout)
+- [HttpClient 4 – Send Custom Cookie](https://www.baeldung.com/httpclient-4-cookies)
+- [Custom HTTP Header with the HttpClient](https://www.baeldung.com/httpclient-custom-http-header)
+- [HttpClient Basic Authentication](https://www.baeldung.com/httpclient-4-basic-authentication)
 - [Posting with HttpClient](https://www.baeldung.com/httpclient-post-http-request)
 
 

httpclient/README.md

@@ -7,13 +7,13 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 
 ### Relevant Articles: 
 
-- [HttpClient 4 – Cancel Request](http://www.baeldung.com/httpclient-cancel-request)
-- [HttpClient 4 Cookbook](http://www.baeldung.com/httpclient4)
-- [Unshorten URLs with HttpClient](http://www.baeldung.com/unshorten-url-httpclient)
-- [HttpClient 4 – Follow Redirects for POST](http://www.baeldung.com/httpclient-redirect-on-http-post)
-- [Multipart Upload with HttpClient 4](http://www.baeldung.com/httpclient-multipart-upload)
-- [HttpAsyncClient Tutorial](http://www.baeldung.com/httpasyncclient-tutorial)
-- [HttpClient 4 Tutorial](http://www.baeldung.com/httpclient-guide)
-- [Advanced HttpClient Configuration](http://www.baeldung.com/httpclient-advanced-config)
-- [HttpClient 4 – Do Not Follow Redirects](http://www.baeldung.com/httpclient-stop-follow-redirect)
-- [Custom User-Agent in HttpClient 4](http://www.baeldung.com/httpclient-user-agent-header)
+- [HttpClient 4 – Cancel Request](https://www.baeldung.com/httpclient-cancel-request)
+- [HttpClient 4 Cookbook](https://www.baeldung.com/httpclient4)
+- [Unshorten URLs with HttpClient](https://www.baeldung.com/unshorten-url-httpclient)
+- [HttpClient 4 – Follow Redirects for POST](https://www.baeldung.com/httpclient-redirect-on-http-post)
+- [Multipart Upload with HttpClient 4](https://www.baeldung.com/httpclient-multipart-upload)
+- [HttpAsyncClient Tutorial](https://www.baeldung.com/httpasyncclient-tutorial)
+- [HttpClient 4 Tutorial](https://www.baeldung.com/httpclient-guide)
+- [Advanced HttpClient Configuration](https://www.baeldung.com/httpclient-advanced-config)
+- [HttpClient 4 – Do Not Follow Redirects](https://www.baeldung.com/httpclient-stop-follow-redirect)
+- [Custom User-Agent in HttpClient 4](https://www.baeldung.com/httpclient-user-agent-header)

hystrix/README.md

@@ -1,3 +1,3 @@
 ### Relevant Articles:
-- [Hystrix Integration with Existing Spring Application](http://www.baeldung.com/hystrix-integration-with-spring-aop)
-- [Introduction to Hystrix](http://www.baeldung.com/introduction-to-hystrix)
+- [Hystrix Integration with Existing Spring Application](https://www.baeldung.com/hystrix-integration-with-spring-aop)
+- [Introduction to Hystrix](https://www.baeldung.com/introduction-to-hystrix)

image-processing/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Working with Images in Java](http://www.baeldung.com/java-images)
+- [Working with Images in Java](https://www.baeldung.com/java-images)

immutables/README.md

@@ -1,2 +1,2 @@
 ### Relevant Articles:
-- [Introduction to Immutables](http://www.baeldung.com/immutables)
+- [Introduction to Immutables](https://www.baeldung.com/immutables)

jackson-simple/README.md

@@ -5,9 +5,9 @@
 The "REST With Spring" Classes: http://bit.ly/restwithspring
 
 ### Relevant Articles: 
-- [Jackson Ignore Properties on Marshalling](http://www.baeldung.com/jackson-ignore-properties-on-serialization)
-- [Jackson Unmarshalling json with Unknown Properties](http://www.baeldung.com/jackson-deserialize-json-unknown-properties)
-- [Jackson Annotation Examples](http://www.baeldung.com/jackson-annotations)
-- [Intro to the Jackson ObjectMapper](http://www.baeldung.com/jackson-object-mapper-tutorial)
-- [Ignore Null Fields with Jackson](http://www.baeldung.com/jackson-ignore-null-fields)
-- [Jackson – Change Name of Field](http://www.baeldung.com/jackson-name-of-property)
+- [Jackson Ignore Properties on Marshalling](https://www.baeldung.com/jackson-ignore-properties-on-serialization)
+- [Jackson Unmarshalling json with Unknown Properties](https://www.baeldung.com/jackson-deserialize-json-unknown-properties)
+- [Jackson Annotation Examples](https://www.baeldung.com/jackson-annotations)
+- [Intro to the Jackson ObjectMapper](https://www.baeldung.com/jackson-object-mapper-tutorial)
+- [Ignore Null Fields with Jackson](https://www.baeldung.com/jackson-ignore-null-fields)
+- [Jackson – Change Name of Field](https://www.baeldung.com/jackson-name-of-property)

jackson/README.md

@@ -6,29 +6,29 @@
 The "REST With Spring" Classes: http://bit.ly/restwithspring
 
 ### Relevant Articles: 
-- [Jackson – Unmarshall to Collection/Array](http://www.baeldung.com/jackson-collection-array)
-- [Jackson – Custom Serializer](http://www.baeldung.com/jackson-custom-serialization)
-- [Getting Started with Custom Deserialization in Jackson](http://www.baeldung.com/jackson-deserialization)
-- [Jackson Exceptions – Problems and Solutions](http://www.baeldung.com/jackson-exception)
-- [Jackson Date](http://www.baeldung.com/jackson-serialize-dates)
-- [Jackson – Bidirectional Relationships](http://www.baeldung.com/jackson-bidirectional-relationships-and-infinite-recursion)
-- [Jackson JSON Tutorial](http://www.baeldung.com/jackson)
-- [Jackson – Working with Maps and nulls](http://www.baeldung.com/jackson-map-null-values-or-null-key)
-- [Jackson – Decide What Fields Get Serialized/Deserialized](http://www.baeldung.com/jackson-field-serializable-deserializable-or-not)
-- [Jackson vs Gson](http://www.baeldung.com/jackson-vs-gson)
-- [XML Serialization and Deserialization with Jackson](http://www.baeldung.com/jackson-xml-serialization-and-deserialization)
-- [More Jackson Annotations](http://www.baeldung.com/jackson-advanced-annotations)
-- [Inheritance with Jackson](http://www.baeldung.com/jackson-inheritance)
-- [Guide to @JsonFormat in Jackson](http://www.baeldung.com/jackson-jsonformat)
-- [Using Optional with Jackson](http://www.baeldung.com/jackson-optional)
-- [Map Serialization and Deserialization with Jackson](http://www.baeldung.com/jackson-map)
-- [Jackson Streaming API](http://www.baeldung.com/jackson-streaming-api)
-- [Jackson – JsonMappingException (No serializer found for class)](http://www.baeldung.com/jackson-jsonmappingexception)
-- [How To Serialize Enums as JSON Objects with Jackson](http://www.baeldung.com/jackson-serialize-enums)
-- [Jackson – Marshall String to JsonNode](http://www.baeldung.com/jackson-json-to-jsonnode)
-- [Jackson – Unmarshall to Collection/Array](http://www.baeldung.com/jackson-collection-array)
-- [Serialize Only Fields that meet a Custom Criteria with Jackson](http://www.baeldung.com/jackson-serialize-field-custom-criteria)
-- [Mapping Nested Values with Jackson](http://www.baeldung.com/jackson-nested-values)
+- [Jackson – Unmarshall to Collection/Array](https://www.baeldung.com/jackson-collection-array)
+- [Jackson – Custom Serializer](https://www.baeldung.com/jackson-custom-serialization)
+- [Getting Started with Custom Deserialization in Jackson](https://www.baeldung.com/jackson-deserialization)
+- [Jackson Exceptions – Problems and Solutions](https://www.baeldung.com/jackson-exception)
+- [Jackson Date](https://www.baeldung.com/jackson-serialize-dates)
+- [Jackson – Bidirectional Relationships](https://www.baeldung.com/jackson-bidirectional-relationships-and-infinite-recursion)
+- [Jackson JSON Tutorial](https://www.baeldung.com/jackson)
+- [Jackson – Working with Maps and nulls](https://www.baeldung.com/jackson-map-null-values-or-null-key)
+- [Jackson – Decide What Fields Get Serialized/Deserialized](https://www.baeldung.com/jackson-field-serializable-deserializable-or-not)
+- [Jackson vs Gson](https://www.baeldung.com/jackson-vs-gson)
+- [XML Serialization and Deserialization with Jackson](https://www.baeldung.com/jackson-xml-serialization-and-deserialization)
+- [More Jackson Annotations](https://www.baeldung.com/jackson-advanced-annotations)
+- [Inheritance with Jackson](https://www.baeldung.com/jackson-inheritance)
+- [Guide to @JsonFormat in Jackson](https://www.baeldung.com/jackson-jsonformat)
+- [Using Optional with Jackson](https://www.baeldung.com/jackson-optional)
+- [Map Serialization and Deserialization with Jackson](https://www.baeldung.com/jackson-map)
+- [Jackson Streaming API](https://www.baeldung.com/jackson-streaming-api)
+- [Jackson – JsonMappingException (No serializer found for class)](https://www.baeldung.com/jackson-jsonmappingexception)
+- [How To Serialize Enums as JSON Objects with Jackson](https://www.baeldung.com/jackson-serialize-enums)
+- [Jackson – Marshall String to JsonNode](https://www.baeldung.com/jackson-json-to-jsonnode)
+- [Jackson – Unmarshall to Collection/Array](https://www.baeldung.com/jackson-collection-array)
+- [Serialize Only Fields that meet a Custom Criteria with Jackson](https://www.baeldung.com/jackson-serialize-field-custom-criteria)
+- [Mapping Nested Values with Jackson](https://www.baeldung.com/jackson-nested-values)
 - [Convert XML to JSON Using Jackson](https://www.baeldung.com/jackson-convert-xml-json)
 - [Deserialize Immutable Objects with Jackson](https://www.baeldung.com/jackson-deserialize-immutable-objects)
 - [Mapping a Dynamic JSON Object with Jackson](https://www.baeldung.com/jackson-mapping-dynamic-object)

java-collections-conversions/README.md

@@ -3,12 +3,12 @@
 ## Java Collections Cookbooks and Examples
 
 ### Relevant Articles: 
-- [Converting between an Array and a List in Java](http://www.baeldung.com/convert-array-to-list-and-list-to-array)
-- [Converting between an Array and a Set in Java](http://www.baeldung.com/convert-array-to-set-and-set-to-array)
-- [Converting between a List and a Set in Java](http://www.baeldung.com/convert-list-to-set-and-set-to-list)
-- [Convert a Map to an Array, List or Set in Java](http://www.baeldung.com/convert-map-values-to-array-list-set)
-- [Converting a List to String in Java](http://www.baeldung.com/java-list-to-string)
-- [How to Convert List to Map in Java](http://www.baeldung.com/java-list-to-map)
+- [Converting between an Array and a List in Java](https://www.baeldung.com/convert-array-to-list-and-list-to-array)
+- [Converting between an Array and a Set in Java](https://www.baeldung.com/convert-array-to-set-and-set-to-array)
+- [Converting between a List and a Set in Java](https://www.baeldung.com/convert-list-to-set-and-set-to-list)
+- [Convert a Map to an Array, List or Set in Java](https://www.baeldung.com/convert-map-values-to-array-list-set)
+- [Converting a List to String in Java](https://www.baeldung.com/java-list-to-string)
+- [How to Convert List to Map in Java](https://www.baeldung.com/java-list-to-map)
 - [Array to String Conversions](https://www.baeldung.com/java-array-to-string)
 - [Converting a Collection to ArrayList in Java](https://www.baeldung.com/java-convert-collection-arraylist)
 - [Java 8 Collectors toMap](https://www.baeldung.com/java-collectors-tomap)

java-collections-maps-2/README.md

@@ -1,6 +1,7 @@
 ## Relevant Articles:
 - [Map of Primitives in Java](https://www.baeldung.com/java-map-primitives)
 - [Copying a HashMap in Java](https://www.baeldung.com/java-copy-hashmap)
+- [Guide to Java HashMap]()
 - [Guide to WeakHashMap in Java](https://www.baeldung.com/java-weakhashmap)
 - [Map to String Conversion in Java](https://www.baeldung.com/java-map-to-string-conversion)
 - [Iterate over a Map in Java](https://www.baeldung.com/java-iterate-map)

java-collections-maps-2/src/main/java/com/baeldung/map/Product.java

@@ -0,0 +1,133 @@
+package com.baeldung.map;
+
+import java.util.*;
+
+public class Product {
+
+    private String name;
+    private String description;
+    private List<String> tags;
+
+    public Product(String name, String description) {
+        this.name = name;
+        this.description = description;
+        this.tags = new ArrayList<>();
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public List<String> getTags() {
+        return tags;
+    }
+
+    public Product addTagsOfOtherProdcut(Product product) {
+        this.tags.addAll(product.getTags());
+        return this;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Product product = (Product) o;
+        return Objects.equals(name, product.name) &&
+                Objects.equals(description, product.description);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, description);
+    }
+
+    public static void forEach() {
+
+        HashMap<String, Product> productsByName = new HashMap<>();
+        productsByName.forEach( (key, product)
+                        -> System.out.println("Key: " + key + " Product:" + product.getDescription())
+                //do something with the key and value
+        );
+
+        //Prior to Java 8:
+        for(Map.Entry<String, Product> entry : productsByName.entrySet()) {
+            Product product =  entry.getValue();
+            String key = entry.getKey();
+            //do something with the key and value
+        }
+    }
+
+    public static void getOrDefault() {
+
+        HashMap<String, Product> productsByName = new HashMap<>();
+        Product chocolate = new Product("chocolate", "something sweet");
+        Product defaultProduct = productsByName.getOrDefault("horse carriage", chocolate);
+        Product bike = productsByName.getOrDefault("E-Bike", chocolate);
+
+        //Prior to Java 8:
+        Product bike2 = productsByName.containsKey("E-Bike")
+                ? productsByName.get("E-Bike")
+                : chocolate;
+        Product defaultProduct2 = productsByName.containsKey("horse carriage")
+                ? productsByName.get("horse carriage")
+                : chocolate;
+    }
+
+    public static void putIfAbsent() {
+
+        HashMap<String, Product> productsByName = new HashMap<>();
+        Product chocolate = new Product("chocolate", "something sweet");
+        productsByName.putIfAbsent("E-Bike", chocolate);
+
+        //Prior to Java 8:
+        if(productsByName.containsKey("E-Bike")) {
+            productsByName.put("E-Bike", chocolate);
+        }
+    }
+
+    public static void merge() {
+
+        HashMap<String, Product> productsByName = new HashMap<>();
+        Product eBike2 = new Product("E-Bike", "A bike with a battery");
+        eBike2.getTags().add("sport");
+        productsByName.merge("E-Bike", eBike2, Product::addTagsOfOtherProdcut);
+
+        //Prior to Java 8:
+        if(productsByName.containsKey("E-Bike")) {
+            productsByName.get("E-Bike").addTagsOfOtherProdcut(eBike2);
+        } else {
+            productsByName.put("E-Bike", eBike2);
+        }
+    }
+
+    public static void compute() {
+
+        HashMap<String, Product> productsByName = new HashMap<>();
+        Product eBike2 = new Product("E-Bike", "A bike with a battery");
+
+        productsByName.compute("E-Bike", (k,v) -> {
+            if(v != null) {
+                return v.addTagsOfOtherProdcut(eBike2);
+            } else {
+                return eBike2;
+            }
+        });
+
+        //Prior to Java 8:
+        if(productsByName.containsKey("E-Bike")) {
+            productsByName.get("E-Bike").addTagsOfOtherProdcut(eBike2);
+        } else {
+            productsByName.put("E-Bike", eBike2);
+        }
+    }
+}

java-collections-maps-2/src/test/java/com/baeldung/map/ProductUnitTest.java

@@ -0,0 +1,124 @@
+package com.baeldung.map;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.HashMap;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class ProductUnitTest {
+
+
+    @Test
+    public void getExistingValue() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product eBike = new Product("E-Bike", "A bike with a battery");
+        Product roadBike = new Product("Road bike", "A bike for competition");
+
+        productsByName.put(eBike.getName(), eBike);
+        productsByName.put(roadBike.getName(), roadBike);
+
+        Product nextPurchase = productsByName.get("E-Bike");
+
+        assertEquals("A bike with a battery", nextPurchase.getDescription());
+    }
+
+    @Test
+    public void getNonExistingValue() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product eBike = new Product("E-Bike", "A bike with a battery");
+        Product roadBike = new Product("Road bike", "A bike for competition");
+
+        productsByName.put(eBike.getName(), eBike);
+        productsByName.put(roadBike.getName(), roadBike);
+
+        Product nextPurchase = productsByName.get("Car");
+
+        assertNull(nextPurchase);
+    }
+
+    @Test
+    public void getExistingValueAfterSameKeyInsertedTwice() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product eBike = new Product("E-Bike", "A bike with a battery");
+        Product roadBike = new Product("Road bike", "A bike for competition");
+        Product newEBike = new Product("E-Bike", "A bike with a better battery");
+
+        productsByName.put(eBike.getName(), eBike);
+        productsByName.put(roadBike.getName(), roadBike);
+        productsByName.put(newEBike.getName(), newEBike);
+
+        Product nextPurchase = productsByName.get("E-Bike");
+
+        assertEquals("A bike with a better battery", nextPurchase.getDescription());
+    }
+
+    @Test
+    public void getExistingValueWithNullKey() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product defaultProduct = new Product("Chocolate", "At least buy chocolate");
+
+        productsByName.put(null, defaultProduct);
+        productsByName.put(defaultProduct.getName(), defaultProduct);
+
+        Product nextPurchase = productsByName.get(null);
+        assertEquals("At least buy chocolate", nextPurchase.getDescription());
+
+        nextPurchase = productsByName.get("Chocolate");
+        assertEquals("At least buy chocolate", nextPurchase.getDescription());
+    }
+
+    @Test
+    public void insertSameObjectWithDifferentKey() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product defaultProduct = new Product("Chocolate", "At least buy chocolate");
+
+        productsByName.put(null, defaultProduct);
+        productsByName.put(defaultProduct.getName(), defaultProduct);
+
+        assertSame(productsByName.get(null), productsByName.get("Chocolate"));
+    }
+
+    @Test
+    public void checkIfKeyExists() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product eBike = new Product("E-Bike", "A bike with a battery");
+
+        productsByName.put(eBike.getName(), eBike);
+
+        assertTrue(productsByName.containsKey("E-Bike"));
+    }
+
+    @Test
+    public void checkIfValueExists() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product eBike = new Product("E-Bike", "A bike with a battery");
+
+        productsByName.put(eBike.getName(), eBike);
+
+        assertTrue(productsByName.containsValue(eBike));
+    }
+
+    @Test
+    public void removeExistingKey() {
+        HashMap<String, Product> productsByName = new HashMap<>();
+
+        Product eBike = new Product("E-Bike", "A bike with a battery");
+        Product roadBike = new Product("Road bike", "A bike for competition");
+
+        productsByName.put(eBike.getName(), eBike);
+        productsByName.put(roadBike.getName(), roadBike);
+
+        productsByName.remove("E-Bike");
+
+        assertNull(productsByName.get("E-Bike"));
+    }
+
+}

java-dates/README.md

@@ -3,25 +3,25 @@
 ## Java Dates Cookbooks and Examples
 
 ### Relevant Articles: 
-- [TemporalAdjuster in Java](http://www.baeldung.com/java-temporal-adjuster)
-- [Handling Daylight Savings Time in Java](http://www.baeldung.com/java-daylight-savings)
-- [Period and Duration in Java](http://www.baeldung.com/java-period-duration)
-- [Difference Between Two Dates in Java](http://www.baeldung.com/java-date-difference)
-- [RegEx for matching Date Pattern in Java](http://www.baeldung.com/java-date-regular-expressions)
-- [Migrating to the New Java 8 Date Time API](http://www.baeldung.com/migrating-to-java-8-date-time-api)
-- [Introduction to the Java 8 Date/Time API](http://www.baeldung.com/java-8-date-time-intro)
-- [Get the Current Date, Time and Timestamp in Java 8](http://www.baeldung.com/current-date-time-and-timestamp-in-java-8)
-- [Get Date Without Time in Java](http://www.baeldung.com/java-date-without-time)
-- [How to Get All Dates Between Two Dates?](http://www.baeldung.com/java-between-dates)
-- [Convert Date to LocalDate or LocalDateTime and Back](http://www.baeldung.com/java-date-to-localdate-and-localdatetime)
-- [Display All Time Zones With GMT And UTC in Java](http://www.baeldung.com/java-time-zones)
-- [Extracting Year, Month and Day from Date in Java](http://www.baeldung.com/java-year-month-day)
-- [Guide to java.util.GregorianCalendar](http://www.baeldung.com/java-gregorian-calendar)
-- [Measure Elapsed Time in Java](http://www.baeldung.com/java-measure-elapsed-time)
-- [How to Get the Start and the End of a Day using Java](http://www.baeldung.com/java-day-start-end)
-- [Calculate Age in Java](http://www.baeldung.com/java-get-age)
-- [Increment Date in Java](http://www.baeldung.com/java-increment-date)
-- [Add Hours To a Date In Java](http://www.baeldung.com/java-add-hours-date)
+- [TemporalAdjuster in Java](https://www.baeldung.com/java-temporal-adjuster)
+- [Handling Daylight Savings Time in Java](https://www.baeldung.com/java-daylight-savings)
+- [Period and Duration in Java](https://www.baeldung.com/java-period-duration)
+- [Difference Between Two Dates in Java](https://www.baeldung.com/java-date-difference)
+- [RegEx for matching Date Pattern in Java](https://www.baeldung.com/java-date-regular-expressions)
+- [Migrating to the New Java 8 Date Time API](https://www.baeldung.com/migrating-to-java-8-date-time-api)
+- [Introduction to the Java 8 Date/Time API](https://www.baeldung.com/java-8-date-time-intro)
+- [Get the Current Date, Time and Timestamp in Java 8](https://www.baeldung.com/current-date-time-and-timestamp-in-java-8)
+- [Get Date Without Time in Java](https://www.baeldung.com/java-date-without-time)
+- [How to Get All Dates Between Two Dates?](https://www.baeldung.com/java-between-dates)
+- [Convert Date to LocalDate or LocalDateTime and Back](https://www.baeldung.com/java-date-to-localdate-and-localdatetime)
+- [Display All Time Zones With GMT And UTC in Java](https://www.baeldung.com/java-time-zones)
+- [Extracting Year, Month and Day from Date in Java](https://www.baeldung.com/java-year-month-day)
+- [Guide to java.util.GregorianCalendar](https://www.baeldung.com/java-gregorian-calendar)
+- [Measure Elapsed Time in Java](https://www.baeldung.com/java-measure-elapsed-time)
+- [How to Get the Start and the End of a Day using Java](https://www.baeldung.com/java-day-start-end)
+- [Calculate Age in Java](https://www.baeldung.com/java-get-age)
+- [Increment Date in Java](https://www.baeldung.com/java-increment-date)
+- [Add Hours To a Date In Java](https://www.baeldung.com/java-add-hours-date)
 - [Guide to DateTimeFormatter](https://www.baeldung.com/java-datetimeformatter)
 - [Format ZonedDateTime to String](https://www.baeldung.com/java-format-zoned-datetime-string)
 - [Convert Between java.time.Instant and java.sql.Timestamp](https://www.baeldung.com/java-time-instant-to-java-sql-timestamp)
@@ -29,4 +29,4 @@
 - [A Guide to SimpleDateFormat](https://www.baeldung.com/java-simple-date-format)
 - [ZoneOffset in Java](https://www.baeldung.com/java-zone-offset)
 - [Differences Between ZonedDateTime and OffsetDateTime](https://www.baeldung.com/java-zoneddatetime-offsetdatetime)
-- [Introduction to Joda-Time](http://www.baeldung.com/joda-time)
+- [Introduction to Joda-Time](https://www.baeldung.com/joda-time)

java-ee-8-security-api/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles
  
- - [Java EE 8 Security API](http://www.baeldung.com/java-ee-8-security)
+ - [Java EE 8 Security API](https://www.baeldung.com/java-ee-8-security)

java-lite/README.md

@@ -1,4 +1,4 @@
 ### Relevant Articles:
 
-- [A Guide to JavaLite – Building a RESTful CRUD application](http://www.baeldung.com/javalite-rest)
-- [Introduction to ActiveWeb](http://www.baeldung.com/activeweb)
+- [A Guide to JavaLite – Building a RESTful CRUD application](https://www.baeldung.com/javalite-rest)
+- [Introduction to ActiveWeb](https://www.baeldung.com/activeweb)

java-numbers-2/README.md

@@ -2,9 +2,10 @@
 - [Lossy Conversion in Java](https://www.baeldung.com/java-lossy-conversion)
 - [A Guide to the Java Math Class](https://www.baeldung.com/java-lang-math)
 - [Calculate the Area of a Circle in Java](https://www.baeldung.com/java-calculate-circle-area)
-- [NaN in Java](http://www.baeldung.com/java-not-a-number)
-- [Generating Prime Numbers in Java](http://www.baeldung.com/java-generate-prime-numbers)
-- [Using Math.pow in Java](http://www.baeldung.com/java-math-pow)
-- [Check If a Number Is Prime in Java](http://www.baeldung.com/java-prime-numbers)
+- [NaN in Java](https://www.baeldung.com/java-not-a-number)
+- [Generating Prime Numbers in Java](https://www.baeldung.com/java-generate-prime-numbers)
+- [Using Math.pow in Java](https://www.baeldung.com/java-math-pow)
+- [Check If a Number Is Prime in Java](https://www.baeldung.com/java-prime-numbers)
 - [Binary Numbers in Java](https://www.baeldung.com/java-binary-numbers)
 - [Finding the Least Common Multiple in Java](https://www.baeldung.com/java-least-common-multiple)
+- [Binary Numbers in Java](https://www.baeldung.com/java-binary-numbers)

java-rmi/README.md

@@ -1,3 +1,3 @@
 ### Relevant articles
 
-- [Getting Started with Java RMI](http://www.baeldung.com/java-rmi)
+- [Getting Started with Java RMI](https://www.baeldung.com/java-rmi)

java-spi/README.md

@@ -1,4 +1,4 @@
 
 ### Relevant Articles: 
 
-- [Java Service Provider Interface](http://www.baeldung.com/java-spi)
+- [Java Service Provider Interface](https://www.baeldung.com/java-spi)

java-streams/README.md

@@ -3,15 +3,15 @@
 ## Java Streams Cookbooks and Examples
 
 ### Relevant Articles: 
-- [The Java 8 Stream API Tutorial](http://www.baeldung.com/java-8-streams)
-- [Introduction to Java 8 Streams](http://www.baeldung.com/java-8-streams-introduction)
-- [Java 8 and Infinite Streams](http://www.baeldung.com/java-inifinite-streams)
-- [Java 8 Stream findFirst() vs. findAny()](http://www.baeldung.com/java-stream-findfirst-vs-findany)
-- [How to Get the Last Element of a Stream in Java?](http://www.baeldung.com/java-stream-last-element)
-- [“Stream has already been operated upon or closed” Exception in Java](http://www.baeldung.com/java-stream-operated-upon-or-closed-exception)
-- [Iterable to Stream in Java](http://www.baeldung.com/java-iterable-to-stream)
-- [How to Iterate Over a Stream With Indices](http://www.baeldung.com/java-stream-indices)
-- [Primitive Type Streams in Java 8](http://www.baeldung.com/java-8-primitive-streams)
+- [The Java 8 Stream API Tutorial](https://www.baeldung.com/java-8-streams)
+- [Introduction to Java 8 Streams](https://www.baeldung.com/java-8-streams-introduction)
+- [Java 8 and Infinite Streams](https://www.baeldung.com/java-inifinite-streams)
+- [Java 8 Stream findFirst() vs. findAny()](https://www.baeldung.com/java-stream-findfirst-vs-findany)
+- [How to Get the Last Element of a Stream in Java?](https://www.baeldung.com/java-stream-last-element)
+- [“Stream has already been operated upon or closed” Exception in Java](https://www.baeldung.com/java-stream-operated-upon-or-closed-exception)
+- [Iterable to Stream in Java](https://www.baeldung.com/java-iterable-to-stream)
+- [How to Iterate Over a Stream With Indices](https://www.baeldung.com/java-stream-indices)
+- [Primitive Type Streams in Java 8](https://www.baeldung.com/java-8-primitive-streams)
 - [Stream Ordering in Java](https://www.baeldung.com/java-stream-ordering)
 - [Introduction to Protonpack](https://www.baeldung.com/java-protonpack)
 - [Java Stream Filter with Lambda Expression](https://www.baeldung.com/java-stream-filter-lambda)

java-strings-2/README.md

@@ -3,8 +3,8 @@
 - [Java Localization – Formatting Messages](https://www.baeldung.com/java-localization-messages-formatting)
 - [Check If a String Contains a Substring](https://www.baeldung.com/java-string-contains-substring)
 - [Removing Stopwords from a String in Java](https://www.baeldung.com/java-string-remove-stopwords)
-- [Java – Generate Random String](http://www.baeldung.com/java-random-string)
-- [Image to Base64 String Conversion](http://www.baeldung.com/java-base64-image-string)
+- [Java – Generate Random String](https://www.baeldung.com/java-random-string)
+- [Image to Base64 String Conversion](https://www.baeldung.com/java-base64-image-string)
 - [Java Base64 Encoding and Decoding](https://www.baeldung.com/java-base64-encode-and-decode)
 - [Generate a Secure Random Password in Java](https://www.baeldung.com/java-generate-secure-password)
 - [Removing Repeated Characters from a String](https://www.baeldung.com/java-remove-repeated-char)
@@ -12,7 +12,7 @@
 - [Pad a String with Zeros or Spaces in Java](https://www.baeldung.com/java-pad-string)
 - [Remove Emojis from a Java String](https://www.baeldung.com/java-string-remove-emojis)
 - [Convert a Comma Separated String to a List in Java](https://www.baeldung.com/java-string-with-separator-to-list)
-- [Guide to java.util.Formatter](http://www.baeldung.com/java-string-formatter)
+- [Guide to java.util.Formatter](https://www.baeldung.com/java-string-formatter)
 - [Remove Leading and Trailing Characters from a String](https://www.baeldung.com/java-remove-trailing-characters)
 - [Concatenating Strings In Java](https://www.baeldung.com/java-strings-concatenation)
 - [Java String Interview Questions and Answers](https://www.baeldung.com/java-string-interview-questions)
@@ -24,3 +24,4 @@
 - [Checking If a String Is a Repeated Substring](https://www.baeldung.com/java-repeated-substring)
 - [How to Reverse a String in Java](https://www.baeldung.com/java-reverse-string)
 - [String toLowerCase and toUpperCase Methods in Java](https://www.baeldung.com/java-string-convert-case)
+- [Guide to StreamTokenizer](https://www.baeldung.com/java-streamtokenizer)

java-strings-ops/README.md

@@ -3,20 +3,20 @@
 ## Java Strings Cookbooks and Examples
 
 ### Relevant Articles:
-- [Convert char to String in Java](http://www.baeldung.com/java-convert-char-to-string)
-- [Convert String to int or Integer in Java](http://www.baeldung.com/java-convert-string-to-int-or-integer)
+- [Convert char to String in Java](https://www.baeldung.com/java-convert-char-to-string)
+- [Convert String to int or Integer in Java](https://www.baeldung.com/java-convert-string-to-int-or-integer)
 - [Java String Conversions](https://www.baeldung.com/java-string-conversions)
-- [Check if a String is a Palindrome](http://www.baeldung.com/java-palindrome)
-- [Comparing Strings in Java](http://www.baeldung.com/java-compare-strings)
-- [Check If a String Is Numeric in Java](http://www.baeldung.com/java-check-string-number)
+- [Check if a String is a Palindrome](https://www.baeldung.com/java-palindrome)
+- [Comparing Strings in Java](https://www.baeldung.com/java-compare-strings)
+- [Check If a String Is Numeric in Java](https://www.baeldung.com/java-check-string-number)
 - [Get Substring from String in Java](https://www.baeldung.com/java-substring)
-- [How to Remove the Last Character of a String?](http://www.baeldung.com/java-remove-last-character-of-string)
+- [How to Remove the Last Character of a String?](https://www.baeldung.com/java-remove-last-character-of-string)
 - [Add a Character to a String at a Given Position](https://www.baeldung.com/java-add-character-to-string)
-- [Count Occurrences of a Char in a String](http://www.baeldung.com/java-count-chars)
-- [Guide to Java String Pool](http://www.baeldung.com/java-string-pool)
-- [Split a String in Java](http://www.baeldung.com/java-split-string)
+- [Count Occurrences of a Char in a String](https://www.baeldung.com/java-count-chars)
+- [Guide to Java String Pool](https://www.baeldung.com/java-string-pool)
+- [Split a String in Java](https://www.baeldung.com/java-split-string)
 - [Common String Operations in Java](https://www.baeldung.com/java-string-operations)
 - [Convert String to Byte Array and Reverse in Java](https://www.baeldung.com/java-string-to-byte-array)
 - [Java toString() Method](https://www.baeldung.com/java-tostring)
-- [CharSequence vs. String in Java](http://www.baeldung.com/java-char-sequence-string)
-- [StringBuilder and StringBuffer in Java](http://www.baeldung.com/java-string-builder-string-buffer)
+- [CharSequence vs. String in Java](https://www.baeldung.com/java-char-sequence-string)
+- [StringBuilder and StringBuffer in Java](https://www.baeldung.com/java-string-builder-string-buffer)

java-strings/README.md

@@ -3,14 +3,14 @@
 ## Java Strings Cookbooks and Examples
 
 ### Relevant Articles:
-- [String Operations with Java Streams](http://www.baeldung.com/java-stream-operations-on-strings)
-- [Converting String to Stream of chars](http://www.baeldung.com/java-string-to-stream)
-- [Java 8 StringJoiner](http://www.baeldung.com/java-string-joiner)
-- [Converting Strings to Enums in Java](http://www.baeldung.com/java-string-to-enum)
-- [Quick Guide to the Java StringTokenizer](http://www.baeldung.com/java-stringtokenizer)
-- [Use char[] Array Over a String for Manipulating Passwords in Java?](http://www.baeldung.com/java-storing-passwords)
-- [Convert a String to Title Case](http://www.baeldung.com/java-string-title-case)
-- [Compact Strings in Java 9](http://www.baeldung.com/java-9-compact-string)
+- [String Operations with Java Streams](https://www.baeldung.com/java-stream-operations-on-strings)
+- [Converting String to Stream of chars](https://www.baeldung.com/java-string-to-stream)
+- [Java 8 StringJoiner](https://www.baeldung.com/java-string-joiner)
+- [Converting Strings to Enums in Java](https://www.baeldung.com/java-string-to-enum)
+- [Quick Guide to the Java StringTokenizer](https://www.baeldung.com/java-stringtokenizer)
+- [Use char[] Array Over a String for Manipulating Passwords in Java?](https://www.baeldung.com/java-storing-passwords)
+- [Convert a String to Title Case](https://www.baeldung.com/java-string-title-case)
+- [Compact Strings in Java 9](https://www.baeldung.com/java-9-compact-string)
 - [Java Check a String for Lowercase/Uppercase Letter, Special Character and Digit](https://www.baeldung.com/java-lowercase-uppercase-special-character-digit-regex)
 - [Convert java.util.Date to String](https://www.baeldung.com/java-util-date-to-string)
 - [Converting a Stack Trace to a String in Java](https://www.baeldung.com/java-stacktrace-to-string)
@@ -20,4 +20,4 @@
 - [Using indexOf to Find All Occurrences of a Word in a String](https://www.baeldung.com/java-indexOf-find-string-occurrences)
 - [Adding a Newline Character to a String in Java](https://www.baeldung.com/java-string-newline)
 - [Remove or Replace part of a String in Java](https://www.baeldung.com/java-remove-replace-string-part)
-- [Replace a Character at a Specific Index in a String in Java](https://www.baeldung.com/java-replace-character-at-index)
+- [Replace a Character at a Specific Index in a String in Java](https://www.baeldung.com/java-replace-character-at-index)

java-vavr-stream/README.md

@@ -1,5 +1,5 @@
 
 ### Relevant Articles:
 
-- [Java Streams vs Vavr Streams](http://www.baeldung.com/vavr-java-streams)
+- [Java Streams vs Vavr Streams](https://www.baeldung.com/vavr-java-streams)