diff --git a/java/services/authentication/mvnw b/java/services/authentication/mvnw
new file mode 100755
index 0000000000000000000000000000000000000000..19529ddf8c6eaa08c5c75ff80652d21ce4b72f8c
--- /dev/null
+++ b/java/services/authentication/mvnw
@@ -0,0 +1,259 @@
+#!/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
+#
+#    http://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.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.2
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${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"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
diff --git a/java/services/authentication/mvnw.cmd b/java/services/authentication/mvnw.cmd
new file mode 100644
index 0000000000000000000000000000000000000000..249bdf3822221aa612d1da2605316cabd7b07e50
--- /dev/null
+++ b/java/services/authentication/mvnw.cmd
@@ -0,0 +1,149 @@
+<# : batch portion
+@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    http://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 Apache Maven Wrapper startup batch script, version 3.3.2
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain"
+}
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
diff --git a/java/services/authentication/pom.xml b/java/services/authentication/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..9cbd96d71de023623d5eeb168a533f99b9dc8ccc
--- /dev/null
+++ b/java/services/authentication/pom.xml
@@ -0,0 +1,78 @@
+<?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>3.3.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.uva</groupId>
+	<artifactId>authentication</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>authentication</name>
+	<description>Authentication microservicio</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>17</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-rest</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-api</artifactId>
+			<version>0.11.2</version>
+		</dependency>
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-impl</artifactId>
+			<version>0.11.2</version>
+		</dependency>
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-jackson</artifactId>
+			<version>0.11.2</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/AuthenticationApplication.java b/java/services/authentication/src/main/java/com/uva/authentication/AuthenticationApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..7b4cb3cd886885343249e97189a911ef42014655
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/AuthenticationApplication.java
@@ -0,0 +1,13 @@
+package com.uva.authentication;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class AuthenticationApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(AuthenticationApplication.class, args);
+	}
+
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Controllers/AuthenticationController.java b/java/services/authentication/src/main/java/com/uva/authentication/Controllers/AuthenticationController.java
new file mode 100644
index 0000000000000000000000000000000000000000..f650865625d8d7364c2b0718598351606ad546ce
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Controllers/AuthenticationController.java
@@ -0,0 +1,94 @@
+package com.uva.authentication.Controllers;
+
+import com.uva.authentication.Models.User;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.SignatureAlgorithm;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.Date;
+
+@RestController
+@RequestMapping("/auth")
+public class AuthenticationController {
+
+    @Autowired
+    private RestTemplate restTemplate;  // Usamos RestTemplate para acceder al microservicio de usuarios
+
+    private final String USER_SERVICE_URL = "http://user-service/users";  // URL del microservicio de usuarios
+
+    // Clave secreta para firmar el token JWT
+    private final String SECRET_KEY = "your-secret-key";  // Cambia esto por una clave secreta segura
+
+    @PostMapping("/login")
+    public ResponseEntity<?> authenticateUser(@RequestBody LoginRequest loginRequest) {
+        // Hacemos una llamada al microservicio de usuarios para obtener el usuario por correo
+        ResponseEntity<User> userResponse = restTemplate.getForEntity(
+                USER_SERVICE_URL + "/{email}",
+                User.class,
+                loginRequest.getEmail()
+        );
+
+        // Verificamos si el usuario existe
+        if (userResponse.getStatusCode().is2xxSuccessful()) {
+            User user = userResponse.getBody();
+            // Verificamos que la contraseña coincida (esto debería hacerse de forma segura en un servicio real)
+            if (user != null && user.getPassword().equals(loginRequest.getPassword())) {
+                // Generamos el token JWT si la autenticación es correcta
+                String token = generateToken(user.getName(), user.getEmail());
+                return ResponseEntity.ok(new AuthResponse(token));
+            }
+        }
+
+        // Si el usuario no existe o la contraseña es incorrecta
+        return ResponseEntity.status(401).body("Invalid email or password");
+    }
+
+    // Método para generar el token JWT
+    private String generateToken(String name, String email) {
+        return Jwts.builder()
+                .setSubject(name)
+                .claim("email", email)  // Añadimos el correo como parte del payload
+                .setIssuedAt(new Date())  // Fecha de emisión
+                .setExpiration(new Date(System.currentTimeMillis() + 3600000))  // Expira en 1 hora
+                .signWith(SignatureAlgorithm.HS512, SECRET_KEY)  // Firma con la clave secreta
+                .compact();
+    }
+
+    public static class LoginRequest {
+        private String email;
+        private String password;
+
+        // Getters and setters
+        public String getEmail() {
+            return email;
+        }
+
+        public void setEmail(String email) {
+            this.email = email;
+        }
+
+        public String getPassword() {
+            return password;
+        }
+
+        public void setPassword(String password) {
+            this.password = password;
+        }
+    }
+
+    public static class AuthResponse {
+        private String token;
+
+        public AuthResponse(String token) {
+            this.token = token;
+        }
+
+        // Getter
+        public String getToken() {
+            return token;
+        }
+    }
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/GlobalExceptionHandler.java b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/GlobalExceptionHandler.java
new file mode 100644
index 0000000000000000000000000000000000000000..f8c8057c9c856a01ee309437de85576d34b0ff13
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/GlobalExceptionHandler.java
@@ -0,0 +1,50 @@
+package com.uva.authentication.Exceptions;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(HotelNotFoundException.class)
+    public ResponseEntity<Map<String, Object>> handleHotelNotFound(HotelNotFoundException ex) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("timestamp", LocalDateTime.now());
+        body.put("message", ex.getMessage());
+
+        return new ResponseEntity<>(body, HttpStatus.NOT_FOUND);
+    }
+
+    @ExceptionHandler(InvalidRequestException.class)
+    public ResponseEntity<Map<String, Object>> handleInvalidRequest(InvalidRequestException ex) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("timestamp", LocalDateTime.now());
+        body.put("message", ex.getMessage());
+
+        return new ResponseEntity<>(body, HttpStatus.BAD_REQUEST);
+    }
+
+    @ExceptionHandler(InvalidDateRangeException.class)
+    public ResponseEntity<Map<String, Object>> handleInvalidDateRange(InvalidDateRangeException ex) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("timestamp", LocalDateTime.now());
+        body.put("message", ex.getMessage());
+
+        return new ResponseEntity<>(body, HttpStatus.BAD_REQUEST);
+    }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<Map<String, Object>> handleGeneralException(Exception ex) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("timestamp", LocalDateTime.now());
+        body.put("message", "An unexpected error occurred: " + ex.getMessage());
+
+        return new ResponseEntity<>(body, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/HotelNotFoundException.java b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/HotelNotFoundException.java
new file mode 100644
index 0000000000000000000000000000000000000000..13270b07b214169a995fa980ddbd72cd45aa728f
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/HotelNotFoundException.java
@@ -0,0 +1,11 @@
+package com.uva.authentication.Exceptions;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.NOT_FOUND)  // Devuelve un 404 cuando se lanza la excepción
+public class HotelNotFoundException extends RuntimeException {
+    public HotelNotFoundException(int id) {
+        super("Hotel not found with id: " + id);
+    }
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/InvalidDateRangeException.java b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/InvalidDateRangeException.java
new file mode 100644
index 0000000000000000000000000000000000000000..699ddc9124f4aea097659ad8dac1d6d4321654b8
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/InvalidDateRangeException.java
@@ -0,0 +1,8 @@
+package com.uva.authentication.Exceptions;
+
+public class InvalidDateRangeException extends RuntimeException {
+    public InvalidDateRangeException(String message) {
+        super(message);
+    }
+}
+
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/InvalidRequestException.java b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/InvalidRequestException.java
new file mode 100644
index 0000000000000000000000000000000000000000..20bd4d00df753bad8b6bfa53ca5f2fc1b74284b0
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Exceptions/InvalidRequestException.java
@@ -0,0 +1,11 @@
+package com.uva.authentication.Exceptions;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.BAD_REQUEST)
+public class InvalidRequestException extends RuntimeException {
+    public InvalidRequestException(String message) {
+        super(message);
+    }
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Models/User.java b/java/services/authentication/src/main/java/com/uva/authentication/Models/User.java
new file mode 100644
index 0000000000000000000000000000000000000000..eff82ac4dcadfd4cf23b85f9704d8fab999e861b
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Models/User.java
@@ -0,0 +1,90 @@
+package com.uva.authentication.Models;
+
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
+import jakarta.persistence.Basic;
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "users")
+public class User {
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  @Basic(optional = false)
+  private int id;
+
+  @Basic(optional = false)
+  private String name;
+
+  @Basic(optional = false)
+  private String email;
+
+  @Basic(optional = false)
+  @Enumerated(EnumType.STRING)
+  private UserStatus status = UserStatus.NO_BOOKINGS;
+
+  private String password;
+
+
+
+  public User() {
+  }
+
+  public User(int id, String name, String email, UserStatus status, String password) {
+    setId(id);
+    setEmail(email);
+    setStatus(status);
+    setPassword(password);
+  }
+
+  public int getId() {
+    return this.id;
+  }
+
+  public void setId(int id) {
+    this.id = id;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public String getEmail() {
+    return this.email;
+  }
+
+  public void setEmail(String email) {
+    this.email = email;
+  }
+
+  public UserStatus getStatus() {
+    return this.status;
+  }
+
+  public void setStatus(UserStatus status) {
+    this.status = status;
+  }
+
+  public String getPassword() {
+    return this.password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/Models/UserStatus.java b/java/services/authentication/src/main/java/com/uva/authentication/Models/UserStatus.java
new file mode 100644
index 0000000000000000000000000000000000000000..7d37403ba4c02364414e2cdf99cd4f9db269aa3f
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/Models/UserStatus.java
@@ -0,0 +1,5 @@
+package com.uva.authentication.Models;
+
+public enum UserStatus {
+  NO_BOOKINGS, WITH_ACTIVE_BOOKINGS, WITH_INACTIVE_BOOKINGS;
+}
diff --git a/java/services/authentication/src/main/java/com/uva/authentication/config/RestTemplateConfig.java b/java/services/authentication/src/main/java/com/uva/authentication/config/RestTemplateConfig.java
new file mode 100644
index 0000000000000000000000000000000000000000..ad00e740247bc6562bc0cadb41e417dcec238caa
--- /dev/null
+++ b/java/services/authentication/src/main/java/com/uva/authentication/config/RestTemplateConfig.java
@@ -0,0 +1,14 @@
+package com.uva.authentication.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+@Configuration
+public class RestTemplateConfig {
+
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+}
diff --git a/java/services/authentication/src/main/resources/application.properties b/java/services/authentication/src/main/resources/application.properties
new file mode 100644
index 0000000000000000000000000000000000000000..563d4ad07ad10e7fb52bb3defcc3b736d889447b
--- /dev/null
+++ b/java/services/authentication/src/main/resources/application.properties
@@ -0,0 +1,10 @@
+spring.application.name=roomBooking
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
+spring.datasource.url=jdbc:mysql://${MYSQL_HOST:localhost}:3306/RoomsBooking?createDatabaseIfNotExist=true
+spring.datasource.username=user
+spring.datasource.password=password
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+
+# Usar esto para alternar entre las exposición del room repository ya que no es necesario su uso pero por defecto, al no cubrir su ruta, se expone
+# spring.data.rest.base-path=false
\ No newline at end of file
diff --git a/java/services/authentication/src/test/java/com/uva/roomBooking/RoomBookingApplicationTests.java b/java/services/authentication/src/test/java/com/uva/roomBooking/RoomBookingApplicationTests.java
new file mode 100644
index 0000000000000000000000000000000000000000..3b50599492c36017391c0dcabd81573f123a809a
--- /dev/null
+++ b/java/services/authentication/src/test/java/com/uva/roomBooking/RoomBookingApplicationTests.java
@@ -0,0 +1,13 @@
+package com.uva.roomBooking;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class RoomBookingApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}
diff --git a/java/services/authentication/target/classes/application.properties b/java/services/authentication/target/classes/application.properties
new file mode 100644
index 0000000000000000000000000000000000000000..563d4ad07ad10e7fb52bb3defcc3b736d889447b
--- /dev/null
+++ b/java/services/authentication/target/classes/application.properties
@@ -0,0 +1,10 @@
+spring.application.name=roomBooking
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
+spring.datasource.url=jdbc:mysql://${MYSQL_HOST:localhost}:3306/RoomsBooking?createDatabaseIfNotExist=true
+spring.datasource.username=user
+spring.datasource.password=password
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+
+# Usar esto para alternar entre las exposición del room repository ya que no es necesario su uso pero por defecto, al no cubrir su ruta, se expone
+# spring.data.rest.base-path=false
\ No newline at end of file
diff --git a/java/services/authentication/target/classes/com/uva/authentication/AuthenticationApplication.class b/java/services/authentication/target/classes/com/uva/authentication/AuthenticationApplication.class
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