.dockerignore

@@ -1,8 +0,0 @@
-/.gradle/
-/.idea/
-/.pybuilder/
-/build/
-/doc/
-.gitignore
-gradlew.bat
-

.gitignore

@@ -1,5 +1,4 @@
 build/
 .gradle/
 .idea/
-frontend/generated/
+frontend/generated/
-__pycache__/

.gitlab-ci.yml

@@ -1,70 +0,0 @@
-stages:
-#  - test
-#  - buildjar
-  - buildimage
-#  - publish
-
-variables:
-  CACHE_FALLBACK_KEY: fallback-key
-
-.img: &img
-  image: openjdk:22-jdk-slim
-  cache:
-    - key: ${CI_COMMIT_REF_SLUG}
-      fallback_keys:
-        - cache-$CI_DEFAULT_BRANCH
-        - cache-default
-    - paths:
-        - /var/cache/apt
-        - .gradle/wrapper
-        - .gradle/caches
-  before_script:
-    - echo "___________________START_before_script________________________"
-    - echo ${CI_COMMIT_REF_SLUG}
-    - apt-get update && apt-get -qqy upgrade
-
-#test:
-#  <<: *img
-#  stage: test
-#  script:
-#    - ./gradlew test
-
-#buildjar:
-#  <<: *img
-#  stage: buildjar
-#  cache:
-#    - key: ${CI_COMMIT_REF_SLUG}
-#  script:
-#    - ./gradlew clean build -Pvaadin.productionMode
-#  artifacts:
-#    name: "ModeratorElection"
-#    paths:
-#      - build/libs/
-#    expire_in: 1 week
-
-buildimage:
-  stage: buildimage
-  image: docker:latest
-  services:
-    - docker:dind
-  cache:
-    - key: ${CI_COMMIT_REF_SLUG}
-#  dependencies:
-#    - buildjar
-  before_script:
-    - echo "---------- BEFORE -------------"
-#    - echo "$CI_REGISTRY_PASSWORD" | docker login $CI_REGISTRY --username $CI_REGISTRY_USER --password-stdin
-    - docker login -u $DOCKERHUB_USER -p $DOCKERHUB_PASSWORD
-  script:
-    - export DOCKER_BUILDKIT=1
-    - docker build --tag=$DOCKERHUB_USER/moderator-election-vaadin_fullstack:latest --target=ci-image-stage --build-arg BUILDKIT_INLINE_CACHE=1 .
-    - docker push $DOCKERHUB_USER/moderator-election-vaadin_fullstack
-
-#  stage: image
-#  script:
-
-#publish:
-#  stage: publish
-#- export IMAGE_DOCKERHUB_USER=$DOCKERHUB_USER
-#- export IMAGE_DOCKERHUB_PASSWORD=$DOCKERHUB_PASSWORD
-

Dockerfile

@@ -1,41 +0,0 @@
-#buildJar-stage
-FROM openjdk:22-jdk-slim as build-jar-stage
-
-RUN \
-    --mount=type=cache,target=/var/cache/apt \
-    apt-get update && apt-get -qqy upgrade
-ADD ./ /usr/local/src/ModeratorElection
-WORKDIR /usr/local/src/ModeratorElection/
-RUN ./gradlew build -Pvaadin.productionMode
-
-# Run jar stage
-FROM build-jar-stage AS run-jar-stage
-EXPOSE 8080
-WORKDIR /usr/local/src/ModeratorElection/build/libs/
-RUN chmod 0740 ./ModeratorElection.jar
-ENTRYPOINT ["java", "-jar", "./ModeratorElection.jar"]
-
-FROM build-jar-stage AS ci-image-stage
-RUN chmod 0740 ./build/libs/ModeratorElection.jar
-ENTRYPOINT ["java", "-jar", "./build/libs/ModeratorElection.jar"]
-
-#build-native-stage
-FROM ubuntu:latest as build-native-stage
-
-ADD image/resources /tmp
-RUN \
-    --mount=type=cache,target=/var/cache/apt \
-    /tmp/install.sh
-ENV LANG=en_US.UTF-8 \
-    JAVA_HOME=/usr/lib/jvm/graalvm/bin
-
-# Run native binary stage
-FROM build-native-stage AS run-native-stage
-
-EXPOSE 8080
-#CMD ["mkdir /usr/local/src/ModeratorElection"]
-WORKDIR /usr/local/src/ModeratorElection/build/native/nativeCompile/
-##copy native binary
-#COPY --from=buildNative-stage /usr/local/src/ModeratorElection/build/native/nativeCompile/ .
-RUN chmod 0740 ./ModeratorElection
-ENTRYPOINT ["./ModeratorElection"]

README.md

@@ -1,48 +0,0 @@
-# meapp-fullstack: ModeratorElection
-
-## Purpose
-
-**ModeratorElection** provides a fullstack java app development as **graalvm binary** containing:
-* Java app to elect a team member from a comma separated list delivered by environment variable
-* Backend Spring Boot embeded Tomcat<sup>®</sup> Server
-* Frontend Vaadin Framework
-* Dockerfile to generate multi stage image,   
-  first stage compilation to graalvm binary, second stage as run stage - graalvm binary execution
-
-## Try out
-Development phase is completed, we will deploy production soon - reachable at  
-https://meapp-fullstack.jitsi.prod.meissa.de
-
-## Setup
-* in **IDE development**, run  
-    `./gradlew clean vaadinPrepareFrontend`
-* build **jar file**  
-`./gradlew clean build -Pvaadin.productionMode`  
--> output jar to build/libs/
-* compile **native-image graalvm binary**  
-  (1) use graalvm agent to announce project dependencies
-```shell
-MEMBERNAMES=er,sie,es java -agentlib:native-image-agent=config-output-dir=src/main/resources/META-INF/native-image -jar build/libs/ModeratorElection-0.0.1-SNAPSHOT.jar
-```  
-  (2)
-`./gradlew nativeCompile -Dvaadin.productionMode=true`  
--> output binary and necessary libs to build/native/nativeCompile/
-* **py builder/build.py** usage recommendation:  
-`pyb <task>` to either create docker image, publish docker image, run test  or dry run.  
-py builder is using **meissa PyPi package ddadevops** for smart deployment.
-
-## Get help
-`./gradlew tasks`
-
-## Development & mirrors
-
-Development completed at:   
-https://repo.prod.meissa.de/meissa/ModeratorElection   
-
-Mirror:  
-https://gitlab.com/domaindrivenarchitecture/ModeratorElection (CI)
-
-## License
-
-Copyright © 2024 meissa GmbH
-Licensed under the [Apache License, Version 2.0](LICENSE)

build.gradle

@@ -6,14 +6,11 @@ buildscript {
 		}
 }
 plugins {
-	id 'org.springframework.boot' version '3.3.1'
+	id 'org.springframework.boot' version '3.1.5'
-	id 'io.spring.dependency-management' version '1.1.6'
+	id 'io.spring.dependency-management' version '1.0.15.RELEASE'
 	id 'java'
-	id 'com.vaadin' version '24.4.4'
+	id 'com.vaadin'
-	id 'org.graalvm.buildtools.native' version '0.10.2'
 }
-group = 'com.ModeratorElection'
-//version = '0.0.1-SNAPSHOT'
 
 repositories {
 	mavenCentral()
@@ -22,10 +19,6 @@ repositories {
 	maven { setUrl("https://maven.vaadin.com/vaadin-addons") }
 }
 
-ext {
-	set('vaadinVersion', '24.4.4')
-}
-
 configurations {
 	developmentOnly
 	runtimeClasspath {
@@ -34,13 +27,11 @@ configurations {
 }
 
 dependencies {
-	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation('com.vaadin:vaadin-spring-boot-starter')
-	implementation 'com.vaadin:vaadin-spring-boot-starter'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
 	testImplementation('org.springframework.boot:spring-boot-starter-test') {
 		exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
 	}
-	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
 
 dependencyManagement {
@@ -49,47 +40,6 @@ dependencyManagement {
 	}
 }
 
-tasks.named('test') {
+test{
 	useJUnitPlatform()
-	jvmArgs "-Xshare:off"
+}
-}
-
-java {
-	toolchain {
-		languageVersion = JavaLanguageVersion.of(22)
-	}
-}
-
-graalvmNative {
-	binaries {
-        main {
-			mainClass = 'com.ModeratorElection.MEApplication'
-			buildArgs.add("-march=native")
-			buildArgs.add("-R:MaxHeapSize=6442450944")
-			fallback = false
-            imageName.set('ModeratorElection')
-			//javaLauncher @JavaExec :: Configures the java executable to be used to run the tests.
-			javaLauncher.set(javaToolchains.launcherFor {
-        		languageVersion.set(JavaLanguageVersion.of(22))
-        		//vendor.set(JvmVendorSpec.GRAAL_VM)
-			})
-        }
-    }
-    testSupport = false
-	toolchainDetection = false
-}
-
-/*tasks.withType(JavaCompile) {
-    options.compilerArgs += ['-Xlint:deprecation']
-	//,'-Xlint:unchecked'
-}*/
-
-/*
-task runApp(type: JavaExec) {
-  classpath = sourceSets.main.runtimeClasspath
-
-  mainClass = 'package.Main'
-
-  // arguments to pass to the application
-  args 'membernames'
-}*/

build.py

@@ -1,56 +0,0 @@
-from os import environ
-from subprocess import run
-from datetime import datetime
-from pybuilder.core import task, init
-from ddadevops import *
-
-name = 'moderator-election'
-MODULE = ''
-PROJECT_ROOT_PATH = '../..'
-version = "0.0.1-dev"
-
-@init
-def initialize(project):
-    image_tag = version
-    if "dev" in image_tag:
-        image_tag += datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
-
-    input = {
-        "name": name,
-        "module": "vaadin_fullstack",
-        "stage": "notused",
-        "project_root_path": PROJECT_ROOT_PATH,
-        "build_types": ["IMAGE"],
-        "mixin_types": [],
-        "image_naming": "NAME_AND_MODULE",
-        "image_tag": f"{image_tag}",
-    }
-
-    project.build_depends_on("ddadevops>=4.7.0")
-
-    build = DevopsImageBuild(project, input)
-    build.initialize_build_dir()
-
-
-@task
-def image(project):
-    build = get_devops_build(project)
-    build.image()
-
-@task
-def drun(project):
-    build = get_devops_build(project)
-    build.drun()
-
-
-@task
-def test(project):
-    build = get_devops_build(project)
-    run("./gradlew test", shell=True, check=True)
-
-
-@task
-def publish(project):
-    build = get_devops_build(project)
-    build.dockerhub_login()
-    build.dockerhub_publish()

doc/dev_notes.md

@@ -1,106 +0,0 @@
-### ToDo  
-
-```
-HowTo BUILD jar?
-
-Failed within local: ./gradle build
-java -jar build/libs/ModeratorElection.jar -> localhost:6333 "White Label..."-Error
-
-=> ./gradlew clean build -Pvaadin.productionMode
-..in ide dev: ./gradlew clean vaadinPrepareFrontend
-```
-
-```
--x processTestAot - exclude, skip tests
-
-https://docs.spring.io/spring-boot/gradle-plugin/aot.html
-Processing Tests
-The AOT engine can be applied to JUnit 5 tests that use Spring’s Test Context Framework. 
-Suitable tests are processed by the 'processTestAot' task to generate 
-'ApplicationContextInitializer' code. As with application AOT processing, the 'BeanFactory' 
-is fully prepared at build-time. As with 'processAot', the 'processTestAot' task is 'JavaExec' 
-subclass and can be configured as needed to influence this processing.
-The 'nativeTest' task of the GraalVM Native Image plugin is automatically configured to 
-use the output of the 'processAot' and 'processTestAot' tasks.
-```
-
-```
-For production:
-* install.sh 
-    git clone --single-branch --branch main https://repo.prod.meissa.de/meissa/ModeratorElection.git /usr/local/src/ModeratorElection
-     
-```
-
-```
-build graalvm binary
-1. First build jar locally, and get META-INF with   
-    ./gradlew clean build -Pvaadin.productionMode -x processTestAot
-    MEMBERNAMES=er,sie,es java -agentlib:native-image-agent=config-output-dir=src/main/resources/META-INF/native-image -jar build/libs/ModeratorElection-0.0.1-SNAPSHOT.jar 
-    curl -X GET localhost:8080 
-2. graalvm native-image compilation
-    ./gradlew nativeCompile -Dvaadin.productionMode=true //-H:ConfigurationFileDirectories=/path/to/config-dir/ notwendig falls nicht in src/main/resources/META-INF/native-image/
-```
-
-```
-Dockerizing -> image/Dockerfile  
-
-install buildx-plugin by binary to use build-native-stage only with DOCKER_BUILDKIT:  
-- https://github.com/docker/buildx/releases/download/v0.15.1/buildx-v0.15.1.linux-amd64
-- sha256sum buildx-v0.15.1.linux-amd64
-- move to file: mv buildx-v0.15.1.linux-amd64 $HOME/.docker/cli-plugins/docker-buildx  
-- chmod x $HOME/.docker/cli-plugins/docker-buildx 
-
-further:  
-    It could be either build jar file or graalvm binary  
-    
-    (1)build-jar-stage  
-    docker build --tag=meapp-jar --target=build-jar-stage .
-    (2)ENTRYPOINT as run-jar-stage
-    docker build --tag=run-meapp-jar --target=run-jar-stage
-    
-    (3)build-native-stage  
-    DOCKER_BUILDKIT=1 docker build --tag=meapp-native --target= build-native-stage .
-    (4)ENTRYPOINT as run-native-stage
-    DOCKER_BUILDKIT=1 docker build --tag=meapp-run-native --target=run-native-stage .
-    
-Test images:  
-    docker run -e MEMBERNAMES=er,sie,es -p 8080:8080 run-jar-stage:latest
-    docker run -e MEMBERNAMES=er,sie,es -p 8080:8080 run-native-stage:latest
-
-Buildkit caching:
-    export DOCKER_BUILDKIT=1
-    --build-arg BUILDKIT_INLINE_CACHE=1
-    (1)docker build --tag=meapp-jar --target=build-jar-stage --build-arg BUILDKIT_INLINE_CACHE=1 .
-    (2)docker build --tag=moderator-election-vaadin_fullstack --target=run-jar-stage --build-arg BUILDKIT_INLINE_CACHE=1 .
-    (3)docker build --tag=meapp-native --target=build-native-stage --build-arg BUILDKIT_INLINE_CACHE=1 .
-    (4)docker build --tag=meapp-run-native --target=run-native-stage --build-arg BUILDKIT_INLINE_CACHE=1 .
-
-
-
-```
-
-```
-gu available
-https://docs.oracle.com/en/graalvm/enterprise/21/docs/reference-manual/graalvm-updater/#component-installation
-```
-
-```  
-vaadin 24.3.3, after npm audit fix during image build: 
-npm warn deprecated workbox-google-analytics@7.0.0: It is not compatible with newer versions of GA starting with v4, as long as you are using GAv3 it should be ok, but the package is not longer being maintained  
-npm warn deprecated sourcemap-codec@1.4.8: Please use @jridgewell/sourcemap-codec instead  
-npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.  
-npm warn deprecated rollup-plugin-terser@7.0.2: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-terser  
-npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
-```
-
-```
-Refresh, Singleton Issue
-https://github.com/vaadin/flow/issues/9376
-https://mvysny.github.io/cant-move-node/
-https://vaadin.com/forum/t/unregistered-node-was-not-found-based-on-its-id-the-tree-is-most-likely-co/161068
-https://vaadin.com/docs/v14/flow/integrations/spring/tutorial-spring-scopes
-    => @PreserveOnRefresh annotation in MainView.java does the trick
-```
-```
-ddadevops anpassung, dass src code ins docker image übergeben werden kann - ohne git clone
-```

frontend/index.html

@@ -3,7 +3,7 @@
 This file is auto-generated by Vaadin.
 -->
 
-<html>
+<html lang="en">
 <head>
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1" />

gradle.properties

@@ -1 +1 @@
-vaadinVersion=24.4.4
+vaadinVersion=24.3.13

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

image/resources/install.sh

@@ -1,77 +0,0 @@
-#!/bin/bash
-
-set -exo pipefail
-
-function main()
-{
-    #upgradeSystem
-    apt-get update && apt-get -qqy upgrade
-    apt-get -qqy install curl git build-essential libz-dev zlib1g-dev
-
-    #change to main branch for production
-    #change to MEapp-development branch for development
-    git clone --single-branch --branch main https://repo.prod.meissa.de/meissa/ModeratorElection.git /usr/local/src/ModeratorElection
-
-    #download gradle
-    #gradle_version="8.4"
-    #curl -SsLo /tmp/gradle-${gradle_version}-bin.zip https://services.gradle.org/distributions/gradle-${gradle_version}-bin.zip
-    #curl -SsLo /tmp/gradle-${gradle_version}-bin.zip.sha256 https://services.gradle.org/distributions/gradle-${gradle_version}-bin.zip.sha256
-
-    #download graalvm
-    #graalvm-community-jdk, v22.0.1 2024-04-16
-    graalvm_jdk_version="22.0.1"
-    curl -SsLo /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-22.0.1/graalvm-community-jdk-22.0.1_linux-x64_bin.tar.gz
-    curl -SsLo /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256 https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-${graalvm_jdk_version}/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256
-
-    #checksum graalvm
-    checksum
-
-    #install graalvm
-    graalvm_inst
-
-    #nativeCompile
-    buildproc
-
-    #cleanupDocker
-    rm -f /root/.ssh/authorized_keys
-    rm -f /root/.ssh/authorized_keys2
-
-    apt-get clean
-    apt-get -qqy autoremove --purge
-    apt-get -qqy autoclean
-    rm -rf /var/lib/apt/lists/
-
-    rm -rf /tmp/*
-
-    find /var/cache -type f -exec rm -rf {} \;
-    find /var/log/ -name '*.log' -exec rm -f {} \;
-
-} > /dev/null
-
-function checksum() {
-    #graalvm
-    echo "  /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz"|tee -a /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256
-    sha256sum -c --status /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz.sha256
-}
-
-function graalvm_inst(){
-    mkdir /usr/lib/jvm/
-    tar -C /usr/lib/jvm/ -xzf /tmp/graalvm-community-jdk-${graalvm_jdk_version}_linux-x64_bin.tar.gz
-    dirname_graalvm=$(ls /usr/lib/jvm/|grep -e graa)
-    mkdir /usr/lib/jvm/graalvm/
-    ln -s /usr/lib/jvm/$dirname_graalvm/bin/ /usr/lib/jvm/graalvm/
-    update-alternatives --install /usr/bin/java java /usr/lib/jvm/graalvm/bin/java 0
-    echo "export PATH=$PATH:/usr/lib/jvm/graalvm/bin"| tee -a ~/.bashrc
-}
-
-function buildproc() {
-    cd /usr/local/src/ModeratorElection/
-    #build graalvm binary
-    ./gradlew nativeCompile -Dvaadin.productionMode=true -x processTestAot
-}
-
-#source /tmp/install_functions_debian.sh
-DEBIAN_FRONTEND=noninteractive DEBCONF_NOWARNINGS=yes main
-
-
-

package.json

@@ -4,102 +4,248 @@
   "type": "module",
   "dependencies": {
     "@polymer/polymer": "3.5.1",
-    "@vaadin/bundles": "24.4.0",
+    "@vaadin/a11y-base": "24.3.13",
+    "@vaadin/accordion": "24.3.13",
+    "@vaadin/app-layout": "24.3.13",
+    "@vaadin/avatar": "24.3.13",
+    "@vaadin/avatar-group": "24.3.13",
+    "@vaadin/bundles": "24.3.13",
+    "@vaadin/button": "24.3.13",
+    "@vaadin/checkbox": "24.3.13",
+    "@vaadin/checkbox-group": "24.3.13",
+    "@vaadin/combo-box": "24.3.13",
     "@vaadin/common-frontend": "0.0.19",
-    "@vaadin/polymer-legacy-adapter": "24.4.0",
+    "@vaadin/component-base": "24.3.13",
-    "@vaadin/react-components": "24.4.0",
+    "@vaadin/confirm-dialog": "24.3.13",
+    "@vaadin/context-menu": "24.3.13",
+    "@vaadin/custom-field": "24.3.13",
+    "@vaadin/date-picker": "24.3.13",
+    "@vaadin/date-time-picker": "24.3.13",
+    "@vaadin/details": "24.3.13",
+    "@vaadin/dialog": "24.3.13",
+    "@vaadin/email-field": "24.3.13",
+    "@vaadin/field-base": "24.3.13",
+    "@vaadin/field-highlighter": "24.3.13",
+    "@vaadin/form-layout": "24.3.13",
+    "@vaadin/grid": "24.3.13",
+    "@vaadin/horizontal-layout": "24.3.13",
+    "@vaadin/icon": "24.3.13",
+    "@vaadin/icons": "24.3.13",
+    "@vaadin/input-container": "24.3.13",
+    "@vaadin/integer-field": "24.3.13",
+    "@vaadin/item": "24.3.13",
+    "@vaadin/list-box": "24.3.13",
+    "@vaadin/lit-renderer": "24.3.13",
+    "@vaadin/login": "24.3.13",
+    "@vaadin/menu-bar": "24.3.13",
+    "@vaadin/message-input": "24.3.13",
+    "@vaadin/message-list": "24.3.13",
+    "@vaadin/multi-select-combo-box": "24.3.13",
+    "@vaadin/notification": "24.3.13",
+    "@vaadin/number-field": "24.3.13",
+    "@vaadin/overlay": "24.3.13",
+    "@vaadin/password-field": "24.3.13",
+    "@vaadin/polymer-legacy-adapter": "24.3.13",
+    "@vaadin/progress-bar": "24.3.13",
+    "@vaadin/radio-group": "24.3.13",
     "@vaadin/router": "1.7.5",
+    "@vaadin/scroller": "24.3.13",
+    "@vaadin/select": "24.3.13",
+    "@vaadin/side-nav": "24.3.13",
+    "@vaadin/split-layout": "24.3.13",
+    "@vaadin/tabs": "24.3.13",
+    "@vaadin/tabsheet": "24.3.13",
+    "@vaadin/text-area": "24.3.13",
+    "@vaadin/text-field": "24.3.13",
+    "@vaadin/time-picker": "24.3.13",
+    "@vaadin/tooltip": "24.3.13",
+    "@vaadin/upload": "24.3.13",
     "@vaadin/vaadin-development-mode-detector": "2.0.7",
-    "@vaadin/vaadin-lumo-styles": "24.4.0",
+    "@vaadin/vaadin-lumo-styles": "24.3.13",
-    "@vaadin/vaadin-material-styles": "24.4.0",
+    "@vaadin/vaadin-material-styles": "24.3.13",
-    "@vaadin/vaadin-themable-mixin": "24.4.0",
+    "@vaadin/vaadin-themable-mixin": "24.3.13",
     "@vaadin/vaadin-usage-statistics": "2.1.2",
+    "@vaadin/vertical-layout": "24.3.13",
+    "@vaadin/virtual-list": "24.3.13",
     "construct-style-sheets-polyfill": "3.1.0",
     "date-fns": "2.29.3",
-    "lit": "3.1.4",
+    "lit": "3.1.2"
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
-    "react-router-dom": "6.23.1"
   },
   "devDependencies": {
-    "@babel/preset-react": "7.24.7",
+    "@rollup/plugin-replace": "5.0.5",
-    "@rollup/plugin-replace": "5.0.7",
     "@rollup/pluginutils": "5.1.0",
-    "@types/react": "18.3.3",
+    "@vitejs/plugin-react": "4.2.1",
-    "@types/react-dom": "18.3.0",
+    "@vitejs/plugin-react-swc": "3.5.0",
-    "@vitejs/plugin-react": "4.3.1",
+    "async": "3.2.4",
-    "async": "3.2.5",
+    "glob": "10.3.3",
-    "glob": "10.4.1",
     "rollup-plugin-brotli": "3.1.0",
     "rollup-plugin-visualizer": "5.12.0",
     "strip-css-comments": "5.0.0",
     "transform-ast": "2.4.4",
-    "typescript": "5.4.5",
+    "typescript": "5.3.3",
-    "vite": "5.3.1",
+    "vite": "5.1.7",
     "vite-plugin-checker": "0.6.4",
-    "workbox-build": "7.1.1",
+    "workbox-build": "7.0.0",
-    "workbox-core": "7.1.0",
+    "workbox-core": "7.0.0",
-    "workbox-precaching": "7.1.0"
+    "workbox-precaching": "7.0.0"
   },
   "vaadin": {
     "dependencies": {
       "@polymer/polymer": "3.5.1",
-      "@vaadin/bundles": "24.4.0",
+      "@vaadin/a11y-base": "24.3.13",
+      "@vaadin/accordion": "24.3.13",
+      "@vaadin/app-layout": "24.3.13",
+      "@vaadin/avatar": "24.3.13",
+      "@vaadin/avatar-group": "24.3.13",
+      "@vaadin/bundles": "24.3.13",
+      "@vaadin/button": "24.3.13",
+      "@vaadin/checkbox": "24.3.13",
+      "@vaadin/checkbox-group": "24.3.13",
+      "@vaadin/combo-box": "24.3.13",
       "@vaadin/common-frontend": "0.0.19",
-      "@vaadin/polymer-legacy-adapter": "24.4.0",
+      "@vaadin/component-base": "24.3.13",
-      "@vaadin/react-components": "24.4.0",
+      "@vaadin/confirm-dialog": "24.3.13",
+      "@vaadin/context-menu": "24.3.13",
+      "@vaadin/custom-field": "24.3.13",
+      "@vaadin/date-picker": "24.3.13",
+      "@vaadin/date-time-picker": "24.3.13",
+      "@vaadin/details": "24.3.13",
+      "@vaadin/dialog": "24.3.13",
+      "@vaadin/email-field": "24.3.13",
+      "@vaadin/field-base": "24.3.13",
+      "@vaadin/field-highlighter": "24.3.13",
+      "@vaadin/form-layout": "24.3.13",
+      "@vaadin/grid": "24.3.13",
+      "@vaadin/horizontal-layout": "24.3.13",
+      "@vaadin/icon": "24.3.13",
+      "@vaadin/icons": "24.3.13",
+      "@vaadin/input-container": "24.3.13",
+      "@vaadin/integer-field": "24.3.13",
+      "@vaadin/item": "24.3.13",
+      "@vaadin/list-box": "24.3.13",
+      "@vaadin/lit-renderer": "24.3.13",
+      "@vaadin/login": "24.3.13",
+      "@vaadin/menu-bar": "24.3.13",
+      "@vaadin/message-input": "24.3.13",
+      "@vaadin/message-list": "24.3.13",
+      "@vaadin/multi-select-combo-box": "24.3.13",
+      "@vaadin/notification": "24.3.13",
+      "@vaadin/number-field": "24.3.13",
+      "@vaadin/overlay": "24.3.13",
+      "@vaadin/password-field": "24.3.13",
+      "@vaadin/polymer-legacy-adapter": "24.3.13",
+      "@vaadin/progress-bar": "24.3.13",
+      "@vaadin/radio-group": "24.3.13",
       "@vaadin/router": "1.7.5",
+      "@vaadin/scroller": "24.3.13",
+      "@vaadin/select": "24.3.13",
+      "@vaadin/side-nav": "24.3.13",
+      "@vaadin/split-layout": "24.3.13",
+      "@vaadin/tabs": "24.3.13",
+      "@vaadin/tabsheet": "24.3.13",
+      "@vaadin/text-area": "24.3.13",
+      "@vaadin/text-field": "24.3.13",
+      "@vaadin/time-picker": "24.3.13",
+      "@vaadin/tooltip": "24.3.13",
+      "@vaadin/upload": "24.3.13",
       "@vaadin/vaadin-development-mode-detector": "2.0.7",
-      "@vaadin/vaadin-lumo-styles": "24.4.0",
+      "@vaadin/vaadin-lumo-styles": "24.3.13",
-      "@vaadin/vaadin-material-styles": "24.4.0",
+      "@vaadin/vaadin-material-styles": "24.3.13",
-      "@vaadin/vaadin-themable-mixin": "24.4.0",
+      "@vaadin/vaadin-themable-mixin": "24.3.13",
       "@vaadin/vaadin-usage-statistics": "2.1.2",
+      "@vaadin/vertical-layout": "24.3.13",
+      "@vaadin/virtual-list": "24.3.13",
       "construct-style-sheets-polyfill": "3.1.0",
       "date-fns": "2.29.3",
-      "lit": "3.1.4",
+      "lit": "3.1.2"
-      "react": "18.3.1",
-      "react-dom": "18.3.1",
-      "react-router-dom": "6.23.1"
     },
     "devDependencies": {
-      "@babel/preset-react": "7.24.7",
+      "@rollup/plugin-replace": "5.0.5",
-      "@rollup/plugin-replace": "5.0.7",
       "@rollup/pluginutils": "5.1.0",
-      "@types/react": "18.3.3",
+      "@vitejs/plugin-react": "4.2.1",
-      "@types/react-dom": "18.3.0",
+      "@vitejs/plugin-react-swc": "3.5.0",
-      "@vitejs/plugin-react": "4.3.1",
+      "async": "3.2.4",
-      "async": "3.2.5",
+      "glob": "10.3.3",
-      "glob": "10.4.1",
       "rollup-plugin-brotli": "3.1.0",
       "rollup-plugin-visualizer": "5.12.0",
       "strip-css-comments": "5.0.0",
       "transform-ast": "2.4.4",
-      "typescript": "5.4.5",
+      "typescript": "5.3.3",
-      "vite": "5.3.1",
+      "vite": "5.1.7",
       "vite-plugin-checker": "0.6.4",
-      "workbox-build": "7.1.1",
+      "workbox-build": "7.0.0",
-      "workbox-core": "7.1.0",
+      "workbox-core": "7.0.0",
-      "workbox-precaching": "7.1.0"
+      "workbox-precaching": "7.0.0"
     },
-    "hash": "a138b9347a25dacd61eb23a186fb55a3bff3993609bd58738beb6651e7993e01"
+    "hash": "1b578191af08a883e68dfca9e08ad525b69d9824e0ec3e82a2689cdcf77b5ffe"
   },
   "overrides": {
     "@vaadin/bundles": "$@vaadin/bundles",
+    "@vaadin/a11y-base": "$@vaadin/a11y-base",
+    "@vaadin/accordion": "$@vaadin/accordion",
+    "@vaadin/app-layout": "$@vaadin/app-layout",
+    "@vaadin/avatar": "$@vaadin/avatar",
+    "@vaadin/avatar-group": "$@vaadin/avatar-group",
+    "@vaadin/button": "$@vaadin/button",
+    "@vaadin/checkbox": "$@vaadin/checkbox",
+    "@vaadin/checkbox-group": "$@vaadin/checkbox-group",
+    "@vaadin/combo-box": "$@vaadin/combo-box",
+    "@vaadin/component-base": "$@vaadin/component-base",
+    "@vaadin/confirm-dialog": "$@vaadin/confirm-dialog",
+    "@vaadin/context-menu": "$@vaadin/context-menu",
+    "@vaadin/custom-field": "$@vaadin/custom-field",
+    "@vaadin/date-picker": "$@vaadin/date-picker",
+    "@vaadin/date-time-picker": "$@vaadin/date-time-picker",
+    "@vaadin/details": "$@vaadin/details",
+    "@vaadin/dialog": "$@vaadin/dialog",
+    "@vaadin/email-field": "$@vaadin/email-field",
+    "@vaadin/field-base": "$@vaadin/field-base",
+    "@vaadin/field-highlighter": "$@vaadin/field-highlighter",
+    "@vaadin/form-layout": "$@vaadin/form-layout",
+    "@vaadin/grid": "$@vaadin/grid",
+    "@vaadin/horizontal-layout": "$@vaadin/horizontal-layout",
+    "@vaadin/icon": "$@vaadin/icon",
+    "@vaadin/icons": "$@vaadin/icons",
+    "@vaadin/input-container": "$@vaadin/input-container",
+    "@vaadin/integer-field": "$@vaadin/integer-field",
+    "@vaadin/item": "$@vaadin/item",
+    "@vaadin/list-box": "$@vaadin/list-box",
+    "@vaadin/lit-renderer": "$@vaadin/lit-renderer",
+    "@vaadin/login": "$@vaadin/login",
+    "@vaadin/menu-bar": "$@vaadin/menu-bar",
+    "@vaadin/message-input": "$@vaadin/message-input",
+    "@vaadin/message-list": "$@vaadin/message-list",
+    "@vaadin/multi-select-combo-box": "$@vaadin/multi-select-combo-box",
+    "@vaadin/notification": "$@vaadin/notification",
+    "@vaadin/number-field": "$@vaadin/number-field",
+    "@vaadin/overlay": "$@vaadin/overlay",
+    "@vaadin/password-field": "$@vaadin/password-field",
     "@vaadin/polymer-legacy-adapter": "$@vaadin/polymer-legacy-adapter",
+    "@vaadin/progress-bar": "$@vaadin/progress-bar",
+    "@vaadin/radio-group": "$@vaadin/radio-group",
+    "@vaadin/scroller": "$@vaadin/scroller",
+    "@vaadin/select": "$@vaadin/select",
+    "@vaadin/side-nav": "$@vaadin/side-nav",
+    "@vaadin/split-layout": "$@vaadin/split-layout",
+    "@vaadin/tabs": "$@vaadin/tabs",
+    "@vaadin/tabsheet": "$@vaadin/tabsheet",
+    "@vaadin/text-area": "$@vaadin/text-area",
+    "@vaadin/text-field": "$@vaadin/text-field",
+    "@vaadin/time-picker": "$@vaadin/time-picker",
+    "@vaadin/tooltip": "$@vaadin/tooltip",
+    "@vaadin/upload": "$@vaadin/upload",
     "@vaadin/vaadin-development-mode-detector": "$@vaadin/vaadin-development-mode-detector",
     "@vaadin/vaadin-lumo-styles": "$@vaadin/vaadin-lumo-styles",
     "@vaadin/vaadin-material-styles": "$@vaadin/vaadin-material-styles",
     "@vaadin/router": "$@vaadin/router",
     "@vaadin/vaadin-usage-statistics": "$@vaadin/vaadin-usage-statistics",
+    "@vaadin/vertical-layout": "$@vaadin/vertical-layout",
+    "@vaadin/virtual-list": "$@vaadin/virtual-list",
     "@vaadin/common-frontend": "$@vaadin/common-frontend",
     "construct-style-sheets-polyfill": "$construct-style-sheets-polyfill",
     "lit": "$lit",
     "@polymer/polymer": "$@polymer/polymer",
     "@vaadin/vaadin-themable-mixin": "$@vaadin/vaadin-themable-mixin",
-    "date-fns": "$date-fns",
+    "date-fns": "$date-fns"
-    "@vaadin/react-components": "$@vaadin/react-components",
-    "react-dom": "$react-dom",
-    "react-router-dom": "$react-router-dom",
-    "react": "$react"
   }
 }

src/main/java/com/ModeratorElection/MainView.java

@@ -14,7 +14,6 @@ import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
 import com.vaadin.flow.component.orderedlayout.VerticalLayout;
 import com.vaadin.flow.router.Route;
 import com.vaadin.flow.router.PageTitle;
-import com.vaadin.flow.spring.annotation.RouteScope;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Configuration;
 
@@ -24,7 +23,6 @@ import java.util.List;
 
 @Route("")
 @PageTitle("Moderatorenwahl")
-@RouteScope
 @Configuration
 public class MainView extends VerticalLayout {
 
@@ -40,10 +38,8 @@ public class MainView extends VerticalLayout {
 
         Button electNow = new Button("Elect!", buttonClickEvent ->  {
             try {
-                ArrayList<String> checkboxSelectedMembers = new ArrayList<>(checkboxGroup.getSelectedItems());
+                Notification moderatorNotification = new Notification()
-                new Notification();
+                        .show("Nächster Moderator: " + electMember(selectMemberItemsNameslist));
-                Notification moderatorNotification = Notification
-                        .show("Nächster Moderator: " + electMember(checkboxSelectedMembers));
                 moderatorNotification.setPosition(Notification.Position.BOTTOM_CENTER);
             } catch(Exception exceptionEvent) {
                 Notification errorNotification = new Notification();
@@ -54,7 +50,9 @@ public class MainView extends VerticalLayout {
                 Button closeButton = new Button(new Icon("lumo", "cross"));
                 closeButton.addThemeVariants(ButtonVariant.LUMO_TERTIARY_INLINE);
                 closeButton.setAriaLabel("Close");
-                closeButton.addClickListener(closeButtonEvent -> errorNotification.close());
+                closeButton.addClickListener(closeButtonEvent -> {
+                    errorNotification.close();
+                });
 
                 HorizontalLayout layout = new HorizontalLayout(text, closeButton);
                 layout.setAlignItems(Alignment.CENTER);

src/main/resources/META-INF/native-image/jni-config.json

@@ -1,49 +0,0 @@
-[
-{
-  "name":"java.awt.GraphicsEnvironment",
-  "methods":[{"name":"isHeadless","parameterTypes":[] }]
-},
-{
-  "name":"java.awt.image.BufferedImage",
-  "fields":[{"name":"colorModel"}, {"name":"imageType"}, {"name":"raster"}],
-  "methods":[{"name":"getRGB","parameterTypes":["int","int","int","int","int[]","int","int"] }, {"name":"setRGB","parameterTypes":["int","int","int","int","int[]","int","int"] }]
-},
-{
-  "name":"java.awt.image.ColorModel",
-  "fields":[{"name":"colorSpace"}, {"name":"colorSpaceType"}, {"name":"isAlphaPremultiplied"}, {"name":"is_sRGB"}, {"name":"nBits"}, {"name":"numComponents"}, {"name":"supportsAlpha"}, {"name":"transparency"}],
-  "methods":[{"name":"getRGBdefault","parameterTypes":[] }]
-},
-{
-  "name":"java.awt.image.Raster",
-  "fields":[{"name":"dataBuffer"}, {"name":"height"}, {"name":"minX"}, {"name":"minY"}, {"name":"numBands"}, {"name":"numDataElements"}, {"name":"sampleModel"}, {"name":"sampleModelTranslateX"}, {"name":"sampleModelTranslateY"}, {"name":"width"}]
-},
-{
-  "name":"java.awt.image.SampleModel",
-  "fields":[{"name":"height"}, {"name":"width"}],
-  "methods":[{"name":"getPixels","parameterTypes":["int","int","int","int","int[]","java.awt.image.DataBuffer"] }, {"name":"setPixels","parameterTypes":["int","int","int","int","int[]","java.awt.image.DataBuffer"] }]
-},
-{
-  "name":"java.awt.image.SinglePixelPackedSampleModel",
-  "fields":[{"name":"bitMasks"}, {"name":"bitOffsets"}, {"name":"bitSizes"}, {"name":"maxBitSize"}]
-},
-{
-  "name":"java.lang.Boolean",
-  "methods":[{"name":"getBoolean","parameterTypes":["java.lang.String"] }]
-},
-{
-  "name":"java.lang.System",
-  "methods":[{"name":"load","parameterTypes":["java.lang.String"] }]
-},
-{
-  "name":"sun.awt.image.ByteComponentRaster",
-  "fields":[{"name":"data"}, {"name":"dataOffsets"}, {"name":"pixelStride"}, {"name":"scanlineStride"}, {"name":"type"}]
-},
-{
-  "name":"sun.java2d.Disposer",
-  "methods":[{"name":"addRecord","parameterTypes":["java.lang.Object","long","long"] }]
-},
-{
-  "name":"sun.management.VMManagementImpl",
-  "fields":[{"name":"compTimeMonitoringSupport"}, {"name":"currentThreadCpuTimeSupport"}, {"name":"objectMonitorUsageSupport"}, {"name":"otherThreadCpuTimeSupport"}, {"name":"remoteDiagnosticCommandsSupport"}, {"name":"synchronizerUsageSupport"}, {"name":"threadAllocatedMemorySupport"}, {"name":"threadContentionMonitoringSupport"}]
-}
-]

src/main/resources/META-INF/native-image/predefined-classes-config.json

@@ -1,8 +0,0 @@
-[
-  {
-    "type":"agent-extracted",
-    "classes":[
-    ]
-  }
-]
-

src/main/resources/META-INF/native-image/proxy-config.json

@@ -1,26 +0,0 @@
-[
-  {
-    "interfaces":["java.lang.reflect.ParameterizedType","org.springframework.core.SerializableTypeWrapper$SerializableTypeProxy","java.io.Serializable"]
-  },
-  {
-    "interfaces":["java.lang.reflect.TypeVariable","org.springframework.core.SerializableTypeWrapper$SerializableTypeProxy","java.io.Serializable"]
-  },
-  {
-    "interfaces":["java.lang.reflect.WildcardType","org.springframework.core.SerializableTypeWrapper$SerializableTypeProxy","java.io.Serializable"]
-  },
-  {
-    "interfaces":["org.atmosphere.cpr.AtmosphereHandler"]
-  },
-  {
-    "interfaces":["org.atmosphere.cpr.Broadcaster"]
-  },
-  {
-    "interfaces":["org.springframework.boot.context.properties.ConfigurationProperties"]
-  },
-  {
-    "interfaces":["org.springframework.web.bind.annotation.PathVariable"]
-  },
-  {
-    "interfaces":["org.springframework.web.bind.annotation.RequestMapping"]
-  }
-]

src/main/resources/META-INF/native-image/serialization-config.json

@@ -1,8 +0,0 @@
-{
-  "types":[
-  ],
-  "lambdaCapturingTypes":[
-  ],
-  "proxies":[
-  ]
-}

src/main/resources/application.properties

@@ -1,8 +1,4 @@
-spring.application.name=ModeratorElection
+server.port=${PORT:6333}
-spring.main.banner-mode=off
-
-server.port=${PORT:8080}
-
 logging.level.org.atmosphere = warn
 spring.mustache.check-template-location = false
 
@@ -10,6 +6,6 @@ spring.mustache.check-template-location = false
 vaadin.launch-browser=true
 # To improve the performance during development.
 # For more information https://vaadin.com/docs/latest/integrations/spring/configuration#special-configuration-parameters
-vaadin.allowed-packages = com.vaadin,org.vaadin,dev.hilla,com.ModeratorElection.MEApplication
+vaadin.allowed-packages = com.vaadin,org.vaadin,dev.hilla,com.example.application
 spring.jpa.defer-datasource-initialization = true
-membernames=${MEMBERNAMES}
+membernames=${MEMBERNAMES:Micha,Ansgar,Clemens,Mattis,Erik,Mirco}

src/test/java/com/ModeratorElection/DemoApplicationTests.java

@@ -0,0 +1,13 @@
+package com.ModeratorElection;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DemoApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}

src/test/java/com/ModeratorElection/MainViewTest.java

@@ -5,13 +5,12 @@ import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
 
-@SpringBootTest(classes = MainView.class)
+//@SpringBootTest
 public class MainViewTest {
     @Test
     void mainViewConstructor() {
         MainView sut = new MainView("Harry,Sven,Ida");
         CheckboxGroup cgroupTest = (CheckboxGroup) sut.getChildren().filter(child -> child instanceof CheckboxGroup).findAny().orElse(null);
-        assert cgroupTest != null;
         int  cgroupTestSelectedItemsSize = cgroupTest.getSelectedItems().size();
         Assertions.assertEquals(3,cgroupTestSelectedItemsSize);
     }