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diff --git a/.idea/libraries/Maven__org_slf4j_slf4j_api_1_7_29.xml b/.idea/libraries/Maven__org_slf4j_slf4j_api_1_7_29.xml
new file mode 100644
index 0000000..53615b0
--- /dev/null
+++ b/.idea/libraries/Maven__org_slf4j_slf4j_api_1_7_29.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..7cd7f4f
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_2_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_autoconfigure_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_autoconfigure_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..18be823
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_autoconfigure_2_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_devtools_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_devtools_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..ea696d5
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_devtools_2_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..7bdffb8
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_2_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_json_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_json_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..c43117f
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_json_2_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_logging_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_logging_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..a6b60e3
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_logging_2_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
+
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_test_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_test_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..e6bd8c4
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_test_2_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_tomcat_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_tomcat_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..ff410af
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_tomcat_2_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_validation_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_validation_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..3eebbd1
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_validation_2_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_web_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_web_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..fac035b
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_starter_web_2_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_test_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_test_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..c2f4fb6
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_test_2_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_boot_spring_boot_test_autoconfigure_2_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_boot_spring_boot_test_autoconfigure_2_2_2_RELEASE.xml
new file mode 100644
index 0000000..d239a44
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_boot_spring_boot_test_autoconfigure_2_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_spring_aop_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_aop_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..b73f787
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_spring_aop_5_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_spring_beans_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_beans_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..d2a0aca
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_spring_beans_5_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_spring_context_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_context_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..809fb19
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_spring_context_5_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_spring_core_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_core_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..d7eff39
--- /dev/null
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diff --git a/.idea/libraries/Maven__org_springframework_spring_expression_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_expression_5_2_2_RELEASE.xml
new file mode 100644
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--- /dev/null
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diff --git a/.idea/libraries/Maven__org_springframework_spring_jcl_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_jcl_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..18fdc29
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_spring_jcl_5_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_spring_test_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_test_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..6ad8767
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_spring_test_5_2_2_RELEASE.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/libraries/Maven__org_springframework_spring_web_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_web_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..7a381f8
--- /dev/null
+++ b/.idea/libraries/Maven__org_springframework_spring_web_5_2_2_RELEASE.xml
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diff --git a/.idea/libraries/Maven__org_springframework_spring_webmvc_5_2_2_RELEASE.xml b/.idea/libraries/Maven__org_springframework_spring_webmvc_5_2_2_RELEASE.xml
new file mode 100644
index 0000000..a667454
--- /dev/null
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diff --git a/.idea/libraries/Maven__org_xmlunit_xmlunit_core_2_6_3.xml b/.idea/libraries/Maven__org_xmlunit_xmlunit_core_2_6_3.xml
new file mode 100644
index 0000000..aed7fe2
--- /dev/null
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diff --git a/.idea/libraries/Maven__org_yaml_snakeyaml_1_25.xml b/.idea/libraries/Maven__org_yaml_snakeyaml_1_25.xml
new file mode 100644
index 0000000..495fc06
--- /dev/null
+++ b/.idea/libraries/Maven__org_yaml_snakeyaml_1_25.xml
@@ -0,0 +1,13 @@
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diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..d30d09e
--- /dev/null
+++ b/.idea/misc.xml
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\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..0fb9717
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
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\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
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\ No newline at end of file
diff --git a/HELP.md b/HELP.md
new file mode 100644
index 0000000..6bd9953
--- /dev/null
+++ b/HELP.md
@@ -0,0 +1,17 @@
+# 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/2.2.2.RELEASE/maven-plugin/)
+* [Spring Boot DevTools](https://docs.spring.io/spring-boot/docs/2.2.2.RELEASE/reference/htmlsingle/#using-boot-devtools)
+* [Spring Web](https://docs.spring.io/spring-boot/docs/2.2.2.RELEASE/reference/htmlsingle/#boot-features-developing-web-applications)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/bookmarks/)
+
diff --git a/demo.iml b/demo.iml
new file mode 100644
index 0000000..8c69650
--- /dev/null
+++ b/demo.iml
@@ -0,0 +1,95 @@
+
+
+
+
+
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+
+
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+
+
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+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
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+
+
+
\ No newline at end of file
diff --git a/mvnw b/mvnw
new file mode 100755
index 0000000..21d3ee8
--- /dev/null
+++ b/mvnw
@@ -0,0 +1,310 @@
+#!/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.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven2 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 "$MAVEN_SKIP_RC" ] ; then
+
+ if [ -f /etc/mavenrc ] ; then
+ . /etc/mavenrc
+ fi
+
+ if [ -f "$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="`which 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/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar"
+ else
+ jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.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 "$wrapperJarPath"
+ else
+ wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+ fi
+ elif command -v curl > /dev/null; then
+ if [ "$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" \
+ $MAVEN_OPTS \
+ -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+ "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+ ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
new file mode 100644
index 0000000..84d60ab
--- /dev/null
+++ b/mvnw.cmd
@@ -0,0 +1,182 @@
+@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 Maven2 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 key stroke 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 "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\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/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar"
+
+FOR /F "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%/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.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 "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\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%
+
+exit /B %ERROR_CODE%
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..46d6600
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,55 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.2.2.RELEASE
+
+
+ com.example
+ demo
+ 0.0.1-SNAPSHOT
+ demo
+ Demo project for Spring Boot
+
+
+ 1.8
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+
+ org.springframework.boot
+ spring-boot-devtools
+ runtime
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.junit.vintage
+ junit-vintage-engine
+
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/src/main/java/com/example/demo/DemoApplication.java b/src/main/java/com/example/demo/DemoApplication.java
new file mode 100644
index 0000000..64b538a
--- /dev/null
+++ b/src/main/java/com/example/demo/DemoApplication.java
@@ -0,0 +1,13 @@
+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DemoApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(DemoApplication.class, args);
+ }
+
+}
diff --git a/src/main/java/com/example/demo/Instructor.java b/src/main/java/com/example/demo/Instructor.java
new file mode 100644
index 0000000..f444bb3
--- /dev/null
+++ b/src/main/java/com/example/demo/Instructor.java
@@ -0,0 +1,20 @@
+package com.example.demo;
+
+public class Instructor extends Person implements Teacher {
+
+ public Instructor(long id, String name) {
+ super(id, name);
+ }
+
+ public void teach(Learner learner, double numberOfHours){
+ learner.learn(numberOfHours);
+ }
+
+ public void lecture(Iterable extends Learner> learners, double numberOfHours) {
+ double numberOfHoursPerLearner = numberOfHours / learners;
+ for (int i = 0; i < learners; i++) {
+ learners[i].learn(numberOfHoursPerLearner);
+ }
+ }
+
+}
diff --git a/src/main/java/com/example/demo/Learner.java b/src/main/java/com/example/demo/Learner.java
new file mode 100644
index 0000000..d53d5d1
--- /dev/null
+++ b/src/main/java/com/example/demo/Learner.java
@@ -0,0 +1,5 @@
+package com.example.demo;
+
+public interface Learner {
+ void learn(double numberOfHours);
+}
diff --git a/src/main/java/com/example/demo/Person.java b/src/main/java/com/example/demo/Person.java
new file mode 100644
index 0000000..8aae7da
--- /dev/null
+++ b/src/main/java/com/example/demo/Person.java
@@ -0,0 +1,24 @@
+package com.example.demo;
+
+public class Person {
+ final long id;
+ String name;
+
+ public Person(long id, String name){
+ this.id = id;
+ this.name = name;
+ }
+
+ public long getId() {
+ return id;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+}
diff --git a/src/main/java/com/example/demo/Teacher.java b/src/main/java/com/example/demo/Teacher.java
new file mode 100644
index 0000000..9b25ecc
--- /dev/null
+++ b/src/main/java/com/example/demo/Teacher.java
@@ -0,0 +1,8 @@
+package com.example.demo;
+
+public interface Teacher {
+ void teach(Learner learner, double numberOfHours);
+
+ void lecture(Iterable extends Learner> learners, double numberOfHours);
+}
+
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1 @@
+
diff --git a/src/test/java/com/example/demo/DemoApplicationTests.java b/src/test/java/com/example/demo/DemoApplicationTests.java
new file mode 100644
index 0000000..2778a6a
--- /dev/null
+++ b/src/test/java/com/example/demo/DemoApplicationTests.java
@@ -0,0 +1,13 @@
+package com.example.demo;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoApplicationTests {
+
+ @Test
+ void contextLoads() {
+ }
+
+}
diff --git a/target/classes/application.properties b/target/classes/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/target/classes/application.properties
@@ -0,0 +1 @@
+
diff --git a/target/classes/com/example/demo/DemoApplication.class b/target/classes/com/example/demo/DemoApplication.class
new file mode 100644
index 0000000..25a3a3a
Binary files /dev/null and b/target/classes/com/example/demo/DemoApplication.class differ
diff --git a/target/classes/com/example/demo/Learner.class b/target/classes/com/example/demo/Learner.class
new file mode 100644
index 0000000..f297956
Binary files /dev/null and b/target/classes/com/example/demo/Learner.class differ
diff --git a/target/classes/com/example/demo/Person.class b/target/classes/com/example/demo/Person.class
new file mode 100644
index 0000000..9351294
Binary files /dev/null and b/target/classes/com/example/demo/Person.class differ
diff --git a/target/test-classes/com/example/demo/DemoApplicationTests.class b/target/test-classes/com/example/demo/DemoApplicationTests.class
new file mode 100644
index 0000000..7e21efa
Binary files /dev/null and b/target/test-classes/com/example/demo/DemoApplicationTests.class differ