diff --git a/onboarding-java/HELP.md b/onboarding-java/HELP.md
new file mode 100644
index 0000000..512a81b
--- /dev/null
+++ b/onboarding-java/HELP.md
@@ -0,0 +1,14 @@
+# Read Me First
+The following was discovered as part of building this project:
+
+* The original package name 'com.gdn.onboarding.java.two.onboarding-java' is invalid and this project uses 'com.gdn.onboarding.java.two.onboardingjava' instead.
+
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/2.6.4/maven-plugin/reference/html/)
+* [Create an OCI image](https://docs.spring.io/spring-boot/docs/2.6.4/maven-plugin/reference/html/#build-image)
+
diff --git a/onboarding-java/mvnw b/onboarding-java/mvnw
new file mode 100644
index 0000000..8a8fb22
--- /dev/null
+++ b/onboarding-java/mvnw
@@ -0,0 +1,316 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /usr/local/etc/mavenrc ] ; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`\\unset -f command; \\command -v java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/onboarding-java/mvnw.cmd b/onboarding-java/mvnw.cmd
new file mode 100644
index 0000000..1d8ab01
--- /dev/null
+++ b/onboarding-java/mvnw.cmd
@@ -0,0 +1,188 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
+
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
+
+cmd /C exit /B %ERROR_CODE%
diff --git a/onboarding-java/pom.xml b/onboarding-java/pom.xml
new file mode 100644
index 0000000..1aa45bd
--- /dev/null
+++ b/onboarding-java/pom.xml
@@ -0,0 +1,47 @@
+<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.6.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.gdn.onboarding.java.two</groupId>
+	<artifactId>onboarding-java</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>Onboarding Java Day 1</name>
+	<description>Bootcamp Blibli Java</description>
+	<properties>
+		<java.version>1.8</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+		</dependency>
+		<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+			<version>2.0.0-alpha6</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1Application.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1Application.java
new file mode 100644
index 0000000..49c1a31
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1Application.java
@@ -0,0 +1,13 @@
+package com.gdn.onboarding.java.two.onboardingjava;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class OnboardingJavaDay1Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(OnboardingJavaDay1Application.class, args);
+	}
+
+}
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/calc/Calculator.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/calc/Calculator.java
new file mode 100644
index 0000000..fdb3e38
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/calc/Calculator.java
@@ -0,0 +1,31 @@
+package com.gdn.onboarding.java.two.onboardingjava.calc;
+
+public class Calculator {
+
+    public Integer add(Integer int1, Integer int2){
+        if(int1 == null || int2 == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        return int1 + int2;
+    }
+
+    public Integer minus(Integer int1, Integer int2){
+        if(int1 == null || int2 == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        return int1 - int2;
+    }
+    public Integer devide(Integer int1, Integer int2){
+        if(int1 == null || int2 == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        return int1 / int2;
+    }
+    public Integer multiply(Integer int1, Integer int2){
+        if(int1 == null || int2 == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        return int1 * int2;
+    }
+}
+
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSort.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSort.java
new file mode 100644
index 0000000..c5e4d0f
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSort.java
@@ -0,0 +1,19 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+public class BubbleSort {
+
+    public int[] bubbleSort(int[] arr){
+        int n = arr.length;
+        int temp=0;
+        for(int i=0; i < n; i++){
+            for(int j=1; j < (n-i); j++){
+                if(arr[j-1] > arr[j]){
+                    temp = arr[j-1];
+                    arr[j-1] = arr[j];
+                    arr[j] = temp;
+                }
+            }
+        }
+        return arr;
+    }
+}
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/Calendar.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/Calendar.java
new file mode 100644
index 0000000..f894e15
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/Calendar.java
@@ -0,0 +1,27 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+public class Calendar {
+    public String calendar(Integer number){
+        if(number == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        if(number < 1 || number > 12){
+            throw new IllegalArgumentException("Number must be between 1 and 12");
+        }
+        switch (number){
+            case 1: return "January";
+            case 2: return "February";
+            case 3: return "March";
+            case 4: return "April";
+            case 5: return "May";
+            case 6: return "June";
+            case 7: return "July";
+            case 8: return "August";
+            case 9: return "September";
+            case 10: return "October";
+            case 11: return "November";
+            case 12: return "December";
+        }
+        return "";
+    }
+}
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/Factorial.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/Factorial.java
new file mode 100644
index 0000000..babca7e
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/Factorial.java
@@ -0,0 +1,16 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+public class Factorial {
+
+    public Integer factorial(Integer num){
+        if(num == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        if(num < 0){
+            throw new IllegalArgumentException("Number must above 0");
+        }
+        if(num == 0) return 0;
+        else if(num == 1) return 1;
+        return num*factorial(num-1);
+    }
+}
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/LetterGrade.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/LetterGrade.java
new file mode 100644
index 0000000..4ea73b2
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/project/LetterGrade.java
@@ -0,0 +1,35 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+public class LetterGrade {
+    public String doGrade(Integer score){
+        if(score == null){
+            throw new IllegalArgumentException("Score cannot be null");
+        }
+        if(score > 100 || score < 0){
+            throw new IllegalArgumentException("Score must be between 0 and 100");
+        }
+        if(score < 90 && score >= 85){
+            return "A-";
+        }
+        else if(score < 85 && score >= 80){
+            return "B+";
+        }
+        else if(score < 80 && score >= 75 ){
+            return "B";
+        }
+        else if(score < 75 && score >= 70){
+            return "B-";
+        }
+        else if(score < 70 && score >= 65){
+            return "C";
+        }
+        else if(score < 65 && score >= 50){
+            return "D";
+        }
+        else if(score < 50){
+            return "E";
+        }
+        return "A";
+    }
+
+}
diff --git a/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoList.java b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoList.java
new file mode 100644
index 0000000..7468fef
--- /dev/null
+++ b/onboarding-java/src/main/java/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoList.java
@@ -0,0 +1,48 @@
+package com.gdn.onboarding.java.two.onboardingjava.todoList;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TodoList {
+    List<String> todoList = new ArrayList<>();
+
+    public void addTodo(String todo){
+        if(todo == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        todoList.add(todo);
+    }
+
+    public void removeTodo(String todoRemove){
+        if(todoRemove == null){
+            throw new IllegalArgumentException("Parameters cannot be null");
+        }
+        for(int i=0;i<todoList.size();i++){
+            if(todoList.get(i).equals(todoRemove)){
+                todoList.remove(i);
+            }
+        }
+    }
+
+    public List<String> getTodo(){
+//        for(String todo : todoList){
+//            System.out.println(todo);
+//        }
+        return todoList;
+    }
+
+//    public TodoList(){
+//        addTodo("Makan siang");
+//        addTodo("Belajar Java");
+//        addTodo("Mengerjakan Project");
+//        addTodo("Belajar Maven");
+//        getTodo();
+//        removeTodo("Makan siang");
+//        getTodo();
+//        System.out.println("Test");
+//    }
+//
+//    public static void main(String[] args){
+//        new TodoList();
+//    }
+}
diff --git a/onboarding-java/src/main/resources/application.properties b/onboarding-java/src/main/resources/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/onboarding-java/src/main/resources/application.properties
@@ -0,0 +1 @@
+
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1ApplicationTests.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1ApplicationTests.java
new file mode 100644
index 0000000..cf7f5f6
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1ApplicationTests.java
@@ -0,0 +1,13 @@
+package com.gdn.onboarding.java.two.onboardingjava;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class OnboardingJavaDay1ApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/calc/CalculatorTest.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/calc/CalculatorTest.java
new file mode 100644
index 0000000..6de1034
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/calc/CalculatorTest.java
@@ -0,0 +1,77 @@
+package com.gdn.onboarding.java.two.onboardingjava.calc;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class CalculatorTest {
+    //Add
+    @Test
+    public void testAdd_success(){
+        Calculator calculator = new Calculator();
+        Integer result = calculator.add(10,10);
+
+        Assertions.assertEquals(20, result);
+    }
+    @Test
+    public void testAdd_failed(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Calculator calculator = new Calculator();
+            Integer result = calculator.add(null,10);
+
+            Assertions.assertEquals(20, result);
+        });
+    }
+    //Minus
+    @Test
+    public void testMinus_success(){
+        Calculator calculator = new Calculator();
+        Integer result = calculator.minus(100,10);
+
+        Assertions.assertEquals(90, result);
+    }
+    @Test
+    public void testMinus_failed(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Calculator calculator = new Calculator();
+            Integer result = calculator.minus(null,10);
+
+            Assertions.assertEquals(20, result);
+        });
+    }
+    //Divide
+    @Test
+    public void testDivide_success(){
+        Calculator calculator = new Calculator();
+        Integer result = calculator.devide(10,10);
+
+        Assertions.assertEquals(1, result);
+    }
+    @Test
+    public void testDivide_failed(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Calculator calculator = new Calculator();
+            Integer result = calculator.devide(null,10);
+
+            Assertions.assertEquals(1, result);
+        });
+    }
+    //Multiply
+    @Test
+    public void testMultiply_success(){
+        Calculator calculator = new Calculator();
+        Integer result = calculator.multiply(10,10);
+
+        Assertions.assertEquals(100, result);
+    }
+    @Test
+    public void testMultiply_failed(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Calculator calculator = new Calculator();
+            Integer result = calculator.multiply(null,10);
+
+            Assertions.assertEquals(20, result);
+        });
+    }
+}
\ No newline at end of file
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSortTest.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSortTest.java
new file mode 100644
index 0000000..5e51495
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSortTest.java
@@ -0,0 +1,18 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class BubbleSortTest {
+    @Test
+    public void testBubbleSort_success1(){
+        int[] arr = {20,8,21,43,2,34,56,78,54,31};
+        BubbleSort bs = new BubbleSort();
+        int[] result = bs.bubbleSort(arr);
+
+        int[] ans={2,8,20,21,31,34,43,54,56,78};
+        Assertions.assertArrayEquals(ans, result);
+    }
+}
\ No newline at end of file
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/CalendarTest.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/CalendarTest.java
new file mode 100644
index 0000000..6f949df
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/CalendarTest.java
@@ -0,0 +1,111 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class CalendarTest {
+    @Test
+    public void testCalendar_success1(){
+        Calendar c = new Calendar();
+        String result = c.calendar(1);
+
+        Assertions.assertEquals("January", result);
+    }
+    @Test
+    public void testCalendar_success2(){
+        Calendar c = new Calendar();
+        String result = c.calendar(2);
+
+        Assertions.assertEquals("February", result);
+    }
+    @Test
+    public void testCalendar_success3(){
+        Calendar c = new Calendar();
+        String result = c.calendar(3);
+
+        Assertions.assertEquals("March", result);
+    }
+    @Test
+    public void testCalendar_success4(){
+        Calendar c = new Calendar();
+        String result = c.calendar(4);
+
+        Assertions.assertEquals("April", result);
+    }
+    @Test
+    public void testCalendar_success5(){
+        Calendar c = new Calendar();
+        String result = c.calendar(5);
+
+        Assertions.assertEquals("May", result);
+    }
+    @Test
+    public void testCalendar_success6(){
+        Calendar c = new Calendar();
+        String result = c.calendar(6);
+
+        Assertions.assertEquals("June", result);
+    }
+    @Test
+    public void testCalendar_success7(){
+        Calendar c = new Calendar();
+        String result = c.calendar(7);
+
+        Assertions.assertEquals("July", result);
+    }
+    @Test
+    public void testCalendar_success8(){
+        Calendar c = new Calendar();
+        String result = c.calendar(8);
+
+        Assertions.assertEquals("August", result);
+    }
+    @Test
+    public void testCalendar_success9(){
+        Calendar c = new Calendar();
+        String result = c.calendar(9);
+
+        Assertions.assertEquals("September", result);
+    }
+    @Test
+    public void testCalendar_success10(){
+        Calendar c = new Calendar();
+        String result = c.calendar(10);
+
+        Assertions.assertEquals("October", result);
+    }
+    @Test
+    public void testCalendar_success11(){
+        Calendar c = new Calendar();
+        String result = c.calendar(11);
+
+        Assertions.assertEquals("November", result);
+    }
+    @Test
+    public void testCalendar_success12(){
+        Calendar c = new Calendar();
+        String result = c.calendar(12);
+
+        Assertions.assertEquals("December", result);
+    }
+    @Test
+    public void testFactorial_failed1(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Calendar c = new Calendar();
+            String result = c.calendar(null);
+
+            Assertions.assertEquals("December", result);
+        });
+    }
+    @Test
+    public void testFactorial_failed2(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Calendar c = new Calendar();
+            String result = c.calendar(15);
+
+            Assertions.assertEquals("December", result);
+        });
+    }
+}
\ No newline at end of file
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/FactorialTest.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/FactorialTest.java
new file mode 100644
index 0000000..477a93b
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/FactorialTest.java
@@ -0,0 +1,59 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class FactorialTest {
+
+    @Test
+    public void testFactorial_success1(){
+        Factorial f = new Factorial();
+        Integer result = f.factorial(0);
+
+        Assertions.assertEquals(0, result);
+    }
+    @Test
+    public void testFactorial_success2(){
+        Factorial f = new Factorial();
+        Integer result = f.factorial(1);
+
+        Assertions.assertEquals(1, result);
+    }
+    @Test
+    public void testFactorial_success3(){
+        Factorial f = new Factorial();
+        Integer result = f.factorial(5);
+
+        Assertions.assertEquals(120, result);
+    }
+    @Test
+    public void testFactorial_success4(){
+        Factorial f = new Factorial();
+        Integer result = f.factorial(10);
+
+        Assertions.assertEquals(3628800, result);
+    }
+    @Test
+    public void testFactorial_failed1(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Factorial f = new Factorial();
+            Integer result = f.factorial(null);
+
+            Assertions.assertEquals(3628800, result);
+        });
+    }
+    @Test
+    public void testFactorial_failed2(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            Factorial f = new Factorial();
+            Integer result = f.factorial(-10);
+
+            Assertions.assertEquals(3628800, result);
+        });
+    }
+
+
+
+}
\ No newline at end of file
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/LetterGradeTest.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/LetterGradeTest.java
new file mode 100644
index 0000000..ed15204
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/project/LetterGradeTest.java
@@ -0,0 +1,83 @@
+package com.gdn.onboarding.java.two.onboardingjava.project;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class LetterGradeTest {
+    @Test
+    public void testGrading_success1(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(100);
+
+        Assertions.assertEquals( "A", result);
+    }
+    @Test
+    public void testGrading_success2(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(85);
+
+        Assertions.assertEquals( "A-", result);
+    }
+    @Test
+    public void testGrading_success3(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(83);
+
+        Assertions.assertEquals( "B+", result);
+    }
+    @Test
+    public void testGrading_success4(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(79);
+
+        Assertions.assertEquals( "B", result);
+    }
+    @Test
+    public void testGrading_success5(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(74);
+
+        Assertions.assertEquals( "B-", result);
+    }
+    @Test
+    public void testGrading_success6(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(69);
+
+        Assertions.assertEquals( "C", result);
+    }
+    @Test
+    public void testGrading_success7(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(60);
+
+        Assertions.assertEquals( "D", result);
+    }
+    @Test
+    public void testGrading_success8(){
+        LetterGrade lg = new LetterGrade();
+        String result = lg.doGrade(45);
+
+        Assertions.assertEquals( "E", result);
+    }
+    @Test
+    public void testGrading_failed1(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            LetterGrade lg = new LetterGrade();
+            String result = lg.doGrade(45);
+
+            Assertions.assertEquals( "E", result);
+        });
+    }
+    @Test
+    public void testGrading_failed2(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            LetterGrade lg = new LetterGrade();
+            String result = lg.doGrade(-1);
+
+            Assertions.assertEquals( "E", result);
+        });
+    }
+}
\ No newline at end of file
diff --git a/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoListTest.java b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoListTest.java
new file mode 100644
index 0000000..63a70ec
--- /dev/null
+++ b/onboarding-java/src/test/java/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoListTest.java
@@ -0,0 +1,72 @@
+package com.gdn.onboarding.java.two.onboardingjava.todoList;
+
+import com.gdn.onboarding.java.two.onboardingjava.project.LetterGrade;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class TodoListTest {
+    @Test
+    public void testAddTodo_success1(){
+        List<String> todoList = new ArrayList<>();
+        todoList.add("Makan Siang");
+        todoList.add("Belajar Java");
+        todoList.add("Mengerjakan Project");
+
+        TodoList todo = new TodoList();
+        todo.addTodo("Makan Siang");
+        todo.addTodo("Belajar Java");
+        todo.addTodo("Mengerjakan Project");
+        Assertions.assertLinesMatch(todoList, todo.getTodo());
+    }
+
+    @Test
+    public void testRemoveTodo_success1(){
+        List<String> todoList = new ArrayList<>();
+        todoList.add("Belajar Java");
+        todoList.add("Mengerjakan Project");
+
+        TodoList todo = new TodoList();
+        todo.addTodo("Makan Siang");
+        todo.addTodo("Belajar Java");
+        todo.addTodo("Mengerjakan Project");
+        todo.removeTodo("Makan Siang");
+        Assertions.assertLinesMatch(todoList, todo.getTodo());
+    }
+
+    @Test
+    public void testAddTodo_failed1(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            List<String> todoList = new ArrayList<>();
+            todoList.add("Makan Siang");
+            todoList.add("Belajar Java");
+            todoList.add("Mengerjakan Project");
+
+            TodoList todo = new TodoList();
+            todo.addTodo(null);
+            todo.addTodo("Belajar Java");
+            todo.addTodo("Mengerjakan Project");
+            Assertions.assertLinesMatch(todoList, todo.getTodo());
+        });
+    }
+    @Test
+    public void testRemoveTodo_failed1(){
+        Assertions.assertThrows(IllegalArgumentException.class, () -> {
+            List<String> todoList = new ArrayList<>();
+            todoList.add("Belajar Java");
+            todoList.add("Mengerjakan Project");
+
+            TodoList todo = new TodoList();
+            todo.addTodo("Makan Siang");
+            todo.addTodo("Belajar Java");
+            todo.addTodo("Mengerjakan Project");
+            todo.removeTodo("Makan Siang");
+            todo.removeTodo(null);
+            Assertions.assertLinesMatch(todoList, todo.getTodo());
+        });
+    }
+}
\ No newline at end of file
diff --git a/onboarding-java/target/classes/application.properties b/onboarding-java/target/classes/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/onboarding-java/target/classes/application.properties
@@ -0,0 +1 @@
+
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1Application.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1Application.class
new file mode 100644
index 0000000..e26a010
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1Application.class differ
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/calc/Calculator.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/calc/Calculator.class
new file mode 100644
index 0000000..f30cc85
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/calc/Calculator.class differ
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSort.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSort.class
new file mode 100644
index 0000000..23acf5b
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSort.class differ
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/Calendar.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/Calendar.class
new file mode 100644
index 0000000..fa43462
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/Calendar.class differ
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/Factorial.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/Factorial.class
new file mode 100644
index 0000000..c3aa8d4
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/Factorial.class differ
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/LetterGrade.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/LetterGrade.class
new file mode 100644
index 0000000..28b5221
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/project/LetterGrade.class differ
diff --git a/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoList.class b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoList.class
new file mode 100644
index 0000000..efd6821
Binary files /dev/null and b/onboarding-java/target/classes/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoList.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1ApplicationTests.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1ApplicationTests.class
new file mode 100644
index 0000000..e3c10c3
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/OnboardingJavaDay1ApplicationTests.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/calc/CalculatorTest.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/calc/CalculatorTest.class
new file mode 100644
index 0000000..f724f5e
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/calc/CalculatorTest.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSortTest.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSortTest.class
new file mode 100644
index 0000000..b706e5c
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/BubbleSortTest.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/CalendarTest.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/CalendarTest.class
new file mode 100644
index 0000000..7e60418
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/CalendarTest.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/FactorialTest.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/FactorialTest.class
new file mode 100644
index 0000000..5f06f80
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/FactorialTest.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/LetterGradeTest.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/LetterGradeTest.class
new file mode 100644
index 0000000..f7ec707
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/project/LetterGradeTest.class differ
diff --git a/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoListTest.class b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoListTest.class
new file mode 100644
index 0000000..0d8bedb
Binary files /dev/null and b/onboarding-java/target/test-classes/com/gdn/onboarding/java/two/onboardingjava/todoList/TodoListTest.class differ