Merge pull request #5203 from amit2103/BAEL-8472

[BAEL-8472] - Resolved conflict

core-kotlin/README.md

@@ -8,7 +8,6 @@
 - [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)
-- [Kotlin with Mockito](http://www.baeldung.com/kotlin-mockito)
 - [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)
@@ -19,8 +18,6 @@
 - [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)
-- [HTTP Requests with Kotlin and khttp](http://www.baeldung.com/kotlin-khttp)
-- [Kotlin Dependency Injection with Kodein](http://www.baeldung.com/kotlin-kodein-dependency-injection)
 - [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)
@@ -28,11 +25,7 @@
 - [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)
-- [Writing Specifications with Kotlin and Spek](http://www.baeldung.com/kotlin-spek)
-- [Processing JSON with Kotlin and Klaxson](http://www.baeldung.com/kotlin-json-klaxson)
 - [Kotlin String Templates](http://www.baeldung.com/kotlin-string-template)
-- [Java EE 8 Security API](http://www.baeldung.com/java-ee-8-security)
-- [Kotlin with Ktor](http://www.baeldung.com/kotlin-ktor)
 - [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)
@@ -40,5 +33,4 @@
 - [Idiomatic Logging in Kotlin](http://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)
+- [Kotlin Nested and Inner Classes](https://www.baeldung.com/kotlin-inner-classes)
-- [Guide to the Kotlin Exposed Framework](https://www.baeldung.com/kotlin-exposed-persistence)

core-kotlin/build.gradle

@@ -6,7 +6,6 @@ version '1.0-SNAPSHOT'
 
 buildscript {
     ext.kotlin_version = '1.2.41'
-    ext.ktor_version = '0.9.2'
 
     repositories {
         mavenCentral()
@@ -44,14 +43,6 @@ sourceSets {
 }
 
 dependencies {
-    compile "io.ktor:ktor-server-netty:$ktor_version"
     compile "ch.qos.logback:logback-classic:1.2.1"
-    compile "io.ktor:ktor-gson:$ktor_version"
     testCompile group: 'junit', name: 'junit', version: '4.12'
-    implementation 'com.beust:klaxon:3.0.1'
-
-}
-task runServer(type: JavaExec) {
-    main = 'APIServer'
-   classpath = sourceSets.main.runtimeClasspath
 }

core-kotlin/pom.xml

@@ -12,33 +12,7 @@
         <relativePath>../parent-kotlin</relativePath>
     </parent>
 
-    <repositories>
-        <repository>
-            <id>exposed</id>
-            <name>exposed</name>
-            <url>https://dl.bintray.com/kotlin/exposed</url>
-        </repository>
-    </repositories>
-
     <dependencies>
-        <dependency>
-            <groupId>org.jetbrains.spek</groupId>
-            <artifactId>spek-api</artifactId>
-            <version>1.1.5</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.jetbrains.spek</groupId>
-            <artifactId>spek-subject-extension</artifactId>
-            <version>1.1.5</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.jetbrains.spek</groupId>
-            <artifactId>spek-junit-platform-engine</artifactId>
-            <version>1.1.5</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-math3</artifactId>
@@ -50,38 +24,12 @@
             <version>${junit.platform.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>khttp</groupId>
-            <artifactId>khttp</artifactId>
-            <version>${khttp.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.nhaarman</groupId>
-            <artifactId>mockito-kotlin</artifactId>
-            <version>${mockito-kotlin.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.github.salomonbrys.kodein</groupId>
-            <artifactId>kodein</artifactId>
-            <version>${kodein.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>com.beust</groupId>
-            <artifactId>klaxon</artifactId>
-            <version>${klaxon.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.jetbrains.exposed</groupId>
-            <artifactId>exposed</artifactId>
-            <version>${exposed.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
@@ -110,16 +58,11 @@
     </dependencies>
 
     <properties>
-        <mockito-kotlin.version>1.5.0</mockito-kotlin.version>
-        <kodein.version>4.1.0</kodein.version>
-        <klaxon.version>3.0.4</klaxon.version>
-        <khttp.version>0.1.0</khttp.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <junit.platform.version>1.1.1</junit.platform.version>
         <junit.vintage.version>5.2.0</junit.vintage.version>
         <assertj.version>3.10.0</assertj.version>
         <h2database.version>1.4.197</h2database.version>
-        <exposed.version>0.10.4</exposed.version>
         <fuel.version>1.15.0</fuel.version>
     </properties>
 

kotlin-libraries/.gitignore

@@ -0,0 +1,14 @@
+/bin/
+
+#ignore gradle
+.gradle/
+
+
+#ignore build and generated files
+build/
+node/
+out/
+
+#ignore installed node modules and package lock file
+node_modules/
+package-lock.json

kotlin-libraries/README.md

@@ -0,0 +1,10 @@
+## Relevant articles:
+
+- [Kotlin with Mockito](http://www.baeldung.com/kotlin-mockito)
+- [HTTP Requests with Kotlin and khttp](http://www.baeldung.com/kotlin-khttp)
+- [Kotlin Dependency Injection with Kodein](http://www.baeldung.com/kotlin-kodein-dependency-injection)
+- [Writing Specifications with Kotlin and Spek](http://www.baeldung.com/kotlin-spek)
+- [Processing JSON with Kotlin and Klaxson](http://www.baeldung.com/kotlin-json-klaxson)
+- [Kotlin with Ktor](http://www.baeldung.com/kotlin-ktor)
+- [Idiomatic Logging in Kotlin](http://www.baeldung.com/kotlin-logging)
+- [Guide to the Kotlin Exposed Framework](https://www.baeldung.com/kotlin-exposed-persistence)

kotlin-libraries/build.gradle

@@ -0,0 +1,57 @@
+
+
+group 'com.baeldung.ktor'
+version '1.0-SNAPSHOT'
+
+
+buildscript {
+    ext.kotlin_version = '1.2.41'
+    ext.ktor_version = '0.9.2'
+
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+apply plugin: 'java'
+apply plugin: 'kotlin'
+apply plugin: 'application'
+
+mainClassName = 'APIServer.kt'
+
+sourceCompatibility = 1.8
+compileKotlin { kotlinOptions.jvmTarget = "1.8" }
+compileTestKotlin { kotlinOptions.jvmTarget = "1.8" }
+
+kotlin { experimental { coroutines "enable" } }
+
+repositories {
+    mavenCentral()
+    jcenter()
+    maven { url "https://dl.bintray.com/kotlin/ktor" }
+}
+sourceSets {
+    main{
+        kotlin{
+            srcDirs 'com/baeldung/ktor'
+        }
+    }
+
+}
+
+dependencies {
+    compile "io.ktor:ktor-server-netty:$ktor_version"
+    compile "ch.qos.logback:logback-classic:1.2.1"
+    compile "io.ktor:ktor-gson:$ktor_version"
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    implementation 'com.beust:klaxon:3.0.1'
+
+}
+task runServer(type: JavaExec) {
+    main = 'APIServer'
+   classpath = sourceSets.main.runtimeClasspath
+}

kotlin-libraries/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-bin.zip

kotlin-libraries/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

kotlin-libraries/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

kotlin-libraries/pom.xml

@@ -0,0 +1,105 @@
+<?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>kotlin-libraries</artifactId>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-kotlin</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../parent-kotlin</relativePath>
+    </parent>
+
+    <repositories>
+        <repository>
+            <id>exposed</id>
+            <name>exposed</name>
+            <url>https://dl.bintray.com/kotlin/exposed</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.jetbrains.spek</groupId>
+            <artifactId>spek-api</artifactId>
+            <version>1.1.5</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.spek</groupId>
+            <artifactId>spek-subject-extension</artifactId>
+            <version>1.1.5</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.spek</groupId>
+            <artifactId>spek-junit-platform-engine</artifactId>
+            <version>1.1.5</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-math3</artifactId>
+            <version>${commons-math3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-runner</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>khttp</groupId>
+            <artifactId>khttp</artifactId>
+            <version>${khttp.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.nhaarman</groupId>
+            <artifactId>mockito-kotlin</artifactId>
+            <version>${mockito-kotlin.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.github.salomonbrys.kodein</groupId>
+            <artifactId>kodein</artifactId>
+            <version>${kodein.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.beust</groupId>
+            <artifactId>klaxon</artifactId>
+            <version>${klaxon.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.exposed</groupId>
+            <artifactId>exposed</artifactId>
+            <version>${exposed.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>${h2database.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <mockito-kotlin.version>1.5.0</mockito-kotlin.version>
+        <kodein.version>4.1.0</kodein.version>
+        <klaxon.version>3.0.4</klaxon.version>
+        <khttp.version>0.1.0</khttp.version>
+        <commons-math3.version>3.6.1</commons-math3.version>
+        <junit.platform.version>1.1.1</junit.platform.version>
+        <junit.vintage.version>5.2.0</junit.vintage.version>
+        <assertj.version>3.10.0</assertj.version>
+        <h2database.version>1.4.197</h2database.version>
+        <exposed.version>0.10.4</exposed.version>
+    </properties>
+
+</project>

kotlin-libraries/resources/logback.xml

@@ -0,0 +1,11 @@
+<configuration>
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+    </encoder>
+  </appender>
+
+  <root level="INFO">
+    <appender-ref ref="STDOUT"/>
+  </root>
+</configuration>

kotlin-libraries/settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'KtorWithKotlin'
+

kotlin-libraries/src/test/kotlin/com/baeldung/kotlin/junit5/Calculator.kt

@@ -0,0 +1,17 @@
+package com.baeldung.kotlin.junit5
+
+class Calculator {
+    fun add(a: Int, b: Int) = a + b
+
+    fun divide(a: Int, b: Int) = if (b == 0) {
+        throw DivideByZeroException(a)
+    } else {
+        a / b
+    }
+
+    fun square(a: Int) = a * a
+
+    fun squareRoot(a: Int) = Math.sqrt(a.toDouble())
+
+    fun log(base: Int, value: Int) = Math.log(value.toDouble()) / Math.log(base.toDouble())
+}

kotlin-libraries/src/test/kotlin/com/baeldung/kotlin/junit5/DivideByZeroException.kt

@@ -0,0 +1,3 @@
+package com.baeldung.kotlin.junit5
+
+class DivideByZeroException(val numerator: Int) : Exception()

pom.xml

@@ -352,6 +352,7 @@
 				<module>java-streams</module>
                 <module>core-java-persistence</module>
 				<module>core-kotlin</module>
+				<module>kotlin-libraries</module>
 				<module>core-groovy</module>
 				<module>core-java-concurrency</module>
 				<module>core-java-concurrency-collections</module>
@@ -1240,6 +1241,7 @@
                 <module>spring-boot-ops</module>
                 <module>spring-5</module>
                 <module>core-kotlin</module>
+				<module>kotlin-libraries</module>
                 <module>core-java</module>
                 <module>google-web-toolkit</module>
                 <module>spring-security-mvc-custom</module>