From ed4b6dd072f4dce393454fe34c13d47dbcd719f1 Mon Sep 17 00:00:00 2001
From: Gabriel Franco <gabefgonc@gmail.com>
Date: Wed, 5 Aug 2026 10:02:20 -0300
Subject: [PATCH] Initial commit

---
 .devcontainer/Dockerfile        |   7 +
 .devcontainer/devcontainer.json |  51 ++++++
 .editorconfig                   |  48 +++++
 .gitignore                      | 115 ++++++++++++
 README.md                       |  20 ++
 create-project.sh               | 162 ++++++++++++++++
 create-spring-project.sh        | 202 ++++++++++++++++++++
 create-vaadin-project.sh        | 314 ++++++++++++++++++++++++++++++++
 8 files changed, 919 insertions(+)
 create mode 100644 .devcontainer/Dockerfile
 create mode 100644 .devcontainer/devcontainer.json
 create mode 100644 .editorconfig
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 create-project.sh
 create mode 100644 create-spring-project.sh
 create mode 100644 create-vaadin-project.sh

diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
new file mode 100644
index 0000000..2c1a4b5
--- /dev/null
+++ b/.devcontainer/Dockerfile
@@ -0,0 +1,7 @@
+FROM mcr.microsoft.com/devcontainers/java:25-bookworm
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        graphviz \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..459971e
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,51 @@
+{
+  "name": "Java 25 Classroom",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/common-utils:2": {},
+    "ghcr.io/devcontainers/features/java:1": {
+      "version": "25",
+      "installMaven": true,
+      "installGradle": false
+    },
+    "ghcr.io/devcontainers/features/docker-in-docker:2": {},
+    "ghcr.io/devcontainers/features/sshd:1": {
+      "version": "latest"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "vscjava.vscode-java-pack",
+        "vmware.vscode-boot-dev-pack",
+        "redhat.vscode-xml",
+        "redhat.vscode-yaml",
+        "ms-azuretools.vscode-containers",
+        "jebbs.plantuml",
+        "GitHub.copilot",
+        "GitHub.copilot-chat",
+        "EditorConfig.EditorConfig"
+      ],
+      "settings": {
+        "java.configuration.runtimes": [
+          {
+            "name": "JavaSE-25",
+            "path": "/usr/local/sdkman/candidates/java/current",
+            "default": true
+          }
+        ],
+        "java.compile.nullAnalysis.mode": "automatic",
+        "java.configuration.updateBuildConfiguration": "automatic",
+        "editor.formatOnSave": true,
+        "files.trimTrailingWhitespace": true,
+        "files.insertFinalNewline": true
+      }
+    }
+  },
+  "forwardPorts": [
+    8080
+  ],
+  "postCreateCommand": "java -version && mvn -version && docker --version"
+}
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..c713b5a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,48 @@
+# EditorConfig is awesome: https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 4
+
+[*.java]
+indent_style = space
+indent_size = 4
+
+[*.xml]
+indent_style = space
+indent_size = 2
+
+[*.yml]
+indent_style = space
+indent_size = 2
+
+[*.yaml]
+indent_style = space
+indent_size = 2
+
+[*.json]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
+
+[Dockerfile]
+indent_style = space
+indent_size = 4
+
+[*.sh]
+indent_style = space
+indent_size = 2
+
+[*.bat]
+end_of_line = crlf
+
+[*.ps1]
+end_of_line = crlf
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..56e14aa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,115 @@
+# Java / JVM
+*.class
+*.jar
+*.war
+*.ear
+*.nar
+*.log
+hs_err_pid*
+replay_pid*
+target/
+bin/
+out/
+build/
+.gradle/
+.gradle-cache/
+
+# Maven
+.mvn/wrapper/maven-wrapper.jar
+dependency-reduced-pom.xml
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+
+# IDEs
+.idea/
+*.iml
+*.ipr
+*.iws
+.project
+.classpath
+.settings/
+
+# VS Code
+.vscode/*
+!.vscode/extensions.json
+!.vscode/settings.json
+!.vscode/launch.json
+!.vscode/tasks.json
+
+# Dev Containers
+# Mantém configuração versionada
+!.devcontainer/
+!.devcontainer/devcontainer.json
+!.devcontainer/Dockerfile
+
+# Vaadin
+node_modules/
+frontend/generated/
+src/main/frontend/generated/
+src/main/bundles/
+src/main/resources/META-INF/VAADIN/
+vite.generated.ts
+types.d.ts
+package-lock.json
+pnpm-lock.yaml
+webpack.generated.js
+webpack.config.js
+webpack.generated.config.js
+
+# Node / JavaScript / TypeScript
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-store/
+.npm/
+.yarn/
+dist/
+coverage/
+.cache/
+.parcel-cache/
+.next/
+.nuxt/
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+.venv/
+venv/
+env/
+ENV/
+.ipynb_checkpoints/
+
+# Docker
+.docker/
+docker-compose.override.yml
+*.env
+.env
+.env.*
+!.env.example
+
+# OS
+.DS_Store
+Thumbs.db
+desktop.ini
+
+# Logs / temporários
+logs/
+tmp/
+temp/
+*.tmp
+*.bak
+*.swp
+*.swo
+
+# Arquivos locais do projeto
+application-local.yml
+application-local.yaml
+application-dev.yml
+application-dev.yaml
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c5c1e22
--- /dev/null
+++ b/README.md
@@ -0,0 +1,20 @@
+# Desenvolvimento Java
+- Repositório base para uso em disciplinas de desenvolvimento de software
+- Configurado para desenvolvimento em Java
+- Pensado para ser usado como "Monorepo" para uma série de projetos de aula
+- As instruções a seguir referem-se ao uso deste repositório em conjunto com o CodeSpaces
+
+## Criação de Projetos Java Básicos
+O script "create-project.sh" cria um projeto Maven/Java básico para ser usado em disciplinas de algoritmos e programação
+- Para que o uso deste script seja possível é necessário que o mesmo tenha permissão de execução. Antes de usar o script pela primeira vez use o comando: `chmod +x create-project.sh`
+- Para criar um projeto usando o script use o comando: `./create-project.sh com.exemplo meu-projeto`
+- Para compilar e executar o projeto use as opções do VSCode
+
+## Criação de projetos usando Vaadin
+O script "create-vaadin-project.sh" cria um projeto Maven/Spring-Boot/Vaadin para ser usado em disciplinas de programação
+- Para que o uso deste script seja possível é necessário que o mesmo tenha permissão de execução. Antes de usar o script pela primeira vez use o comando: `chmod +x create-vaadin-project.sh`
+- Para criar um projeto usando o script use o comando: `./create-vaadin-project.sh com.exemplo meu-projeto`
+- Para compilar e executar o projeto use o comando: `mvn spring-boot:run`
+
+## Criação de projetos SpringBoot
+- Use o plugin de criação de projetos Spring-Boot do VSCode
diff --git a/create-project.sh b/create-project.sh
new file mode 100644
index 0000000..d016f13
--- /dev/null
+++ b/create-project.sh
@@ -0,0 +1,162 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [ "$#" -lt 2 ]; then
+  echo "Uso: $0 <groupId> <artifactId>"
+  echo "Exemplo: $0 com.exemplo meu-projeto"
+  exit 1
+fi
+
+GROUP_ID="$1"
+ARTIFACT_ID="$2"
+
+echo "Criando projeto Maven '$ARTIFACT_ID' com groupId '$GROUP_ID' e Java 25..."
+
+BASE_DIR="$ARTIFACT_ID"
+PACKAGE_DIR="$(echo "$GROUP_ID" | tr '.' '/')"
+
+SRC_MAIN_JAVA="$BASE_DIR/src/main/java/$PACKAGE_DIR"
+SRC_TEST_JAVA="$BASE_DIR/src/test/java/$PACKAGE_DIR"
+
+if [ -e "$BASE_DIR" ]; then
+  echo "Erro: o diretório '$BASE_DIR' já existe."
+  exit 1
+fi
+
+mkdir -p "$SRC_MAIN_JAVA"
+mkdir -p "$SRC_TEST_JAVA"
+
+cat > "$BASE_DIR/pom.xml" <<EOF
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+                             https://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>$GROUP_ID</groupId>
+  <artifactId>$ARTIFACT_ID</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <properties>
+    <maven.compiler.release>25</maven.compiler.release>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <!-- JUnit Jupiter para testes unitários -->
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+      <version>5.10.0</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <!-- Compilação com Java 25 -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.11.0</version>
+        <configuration>
+          <release>25</release>
+        </configuration>
+      </plugin>
+
+      <!-- Execução dos testes JUnit -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>3.1.2</version>
+        <configuration>
+          <useModulePath>false</useModulePath>
+        </configuration>
+      </plugin>
+
+      <!-- Execução da classe principal -->
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <version>3.1.0</version>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>
+EOF
+
+cat > "$SRC_MAIN_JAVA/App.java" <<EOF
+package $GROUP_ID;
+
+public class App {
+
+    public static void main(String[] args) {
+        System.out.println(
+            "Hello, world! Projeto $ARTIFACT_ID criado com sucesso."
+        );
+    }
+}
+EOF
+
+cat > "$SRC_TEST_JAVA/AppTest.java" <<EOF
+package $GROUP_ID;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+class AppTest {
+
+    @Test
+    void testApp() {
+        assertTrue(true, "Teste básico de funcionamento.");
+    }
+}
+EOF
+
+cat > "$BASE_DIR/README.md" <<EOF
+# $ARTIFACT_ID
+
+Projeto Maven criado automaticamente com Java 25 e JUnit 5.
+
+## Requisitos
+
+- Java 25
+- Maven
+
+## Como compilar
+
+\`\`\`bash
+mvn compile
+\`\`\`
+
+## Como executar
+
+\`\`\`bash
+mvn exec:java -Dexec.mainClass="$GROUP_ID.App"
+\`\`\`
+
+## Como executar os testes
+
+\`\`\`bash
+mvn test
+\`\`\`
+
+## Como gerar o pacote
+
+\`\`\`bash
+mvn package
+\`\`\`
+EOF
+
+echo
+echo "Projeto '$ARTIFACT_ID' criado com sucesso."
+echo "Java: 25"
+echo
+echo "Para testar:"
+echo "  cd '$ARTIFACT_ID'"
+echo "  mvn test"
+echo "  mvn exec:java -Dexec.mainClass=\"$GROUP_ID.App\""
diff --git a/create-spring-project.sh b/create-spring-project.sh
new file mode 100644
index 0000000..1c23dbf
--- /dev/null
+++ b/create-spring-project.sh
@@ -0,0 +1,202 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [ "$#" -lt 2 ]; then
+    echo "Uso: $0 <groupId> <artifactId>"
+    echo "Exemplo: $0 com.exemplo api-pessoas"
+    exit 1
+fi
+
+GROUP_ID="$1"
+ARTIFACT_ID="$2"
+
+JAVA_VERSION="25"
+SPRING_BOOT_VERSION="4.1.0"
+
+PACKAGE_DIR="${GROUP_ID//./\/}"
+BASE_DIR="$ARTIFACT_ID"
+
+SRC_MAIN_JAVA="$BASE_DIR/src/main/java/$PACKAGE_DIR"
+SRC_TEST_JAVA="$BASE_DIR/src/test/java/$PACKAGE_DIR"
+SRC_MAIN_RESOURCES="$BASE_DIR/src/main/resources"
+
+echo "Criando projeto Spring Boot..."
+
+if [ -e "$BASE_DIR" ]; then
+    echo "Erro: diretório '$BASE_DIR' já existe."
+    exit 1
+fi
+
+mkdir -p "$SRC_MAIN_JAVA"
+mkdir -p "$SRC_TEST_JAVA"
+mkdir -p "$SRC_MAIN_RESOURCES"
+
+cat > "$BASE_DIR/pom.xml" <<EOF
+<?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>$SPRING_BOOT_VERSION</version>
+        <relativePath/>
+    </parent>
+
+    <groupId>$GROUP_ID</groupId>
+    <artifactId>$ARTIFACT_ID</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <java.version>$JAVA_VERSION</java.version>
+    </properties>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+            <optional>true</optional>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+
+        <plugins>
+
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+
+        </plugins>
+
+    </build>
+
+</project>
+EOF
+
+cat > "$SRC_MAIN_JAVA/App.java" <<EOF
+package $GROUP_ID;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class App {
+
+    public static void main(String[] args) {
+        SpringApplication.run(App.class,args);
+    }
+
+}
+EOF
+
+cat > "$SRC_MAIN_JAVA/HelloController.java" <<EOF
+package $GROUP_ID;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class HelloController {
+
+    @GetMapping("/")
+    public String hello() {
+        return "Hello World!";
+    }
+
+}
+EOF
+
+cat > "$SRC_TEST_JAVA/AppTest.java" <<EOF
+package $GROUP_ID;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.jupiter.api.Test;
+
+class AppTest {
+
+    @Test
+    void testApp() {
+        assertNotNull(new App());
+    }
+
+}
+EOF
+
+cat > "$SRC_MAIN_RESOURCES/application.properties" <<EOF
+spring.application.name=$ARTIFACT_ID
+
+server.port=8080
+EOF
+
+cat > "$BASE_DIR/README.md" <<EOF
+# $ARTIFACT_ID
+
+Projeto Spring Boot criado automaticamente.
+
+## Requisitos
+
+- Java $JAVA_VERSION
+- Maven
+
+## Executar
+
+\`\`\`bash
+mvn spring-boot:run
+\`\`\`
+
+Acesse:
+
+http://localhost:8080
+
+## Testes
+
+\`\`\`bash
+mvn test
+\`\`\`
+
+## Empacotar
+
+\`\`\`bash
+mvn clean package
+\`\`\`
+
+## Executar o JAR
+
+\`\`\`bash
+java -jar target/$ARTIFACT_ID-1.0-SNAPSHOT.jar
+\`\`\`
+EOF
+
+echo
+echo "Projeto criado com sucesso."
+echo
+echo "Para executar:"
+echo "  cd $ARTIFACT_ID"
+echo "  mvn spring-boot:run"
+echo
+echo "Abra:"
+echo "  http://localhost:8080"
diff --git a/create-vaadin-project.sh b/create-vaadin-project.sh
new file mode 100644
index 0000000..bd24ef7
--- /dev/null
+++ b/create-vaadin-project.sh
@@ -0,0 +1,314 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [ "$#" -lt 2 ]; then
+  echo "Uso: $0 <groupId> <artifactId>"
+  echo "Exemplo: $0 com.exemplo vaadin-app"
+  exit 1
+fi
+
+GROUP_ID="$1"
+ARTIFACT_ID="$2"
+
+JAVA_VERSION="25"
+SPRING_BOOT_VERSION="4.1.0"
+VAADIN_VERSION="25.2.1"
+
+PACKAGE_DIR="${GROUP_ID//./\/}"
+BASE_DIR="$ARTIFACT_ID"
+
+SRC_MAIN_JAVA="$BASE_DIR/src/main/java/$PACKAGE_DIR"
+SRC_TEST_JAVA="$BASE_DIR/src/test/java/$PACKAGE_DIR"
+SRC_MAIN_RESOURCES="$BASE_DIR/src/main/resources"
+
+echo "Criando projeto Vaadin + Spring Boot '$ARTIFACT_ID'..."
+echo "Group ID:     $GROUP_ID"
+echo "Java:        $JAVA_VERSION"
+echo "Spring Boot: $SPRING_BOOT_VERSION"
+echo "Vaadin:      $VAADIN_VERSION"
+
+if [ -e "$BASE_DIR" ]; then
+  echo "Erro: o diretório '$BASE_DIR' já existe."
+  exit 1
+fi
+
+mkdir -p "$SRC_MAIN_JAVA"
+mkdir -p "$SRC_TEST_JAVA"
+mkdir -p "$SRC_MAIN_RESOURCES"
+
+cat > "$BASE_DIR/pom.xml" <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="
+             http://maven.apache.org/POM/4.0.0
+             https://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.springframework.boot</groupId>
+    <artifactId>spring-boot-starter-parent</artifactId>
+    <version>$SPRING_BOOT_VERSION</version>
+    <relativePath/>
+  </parent>
+
+  <groupId>$GROUP_ID</groupId>
+  <artifactId>$ARTIFACT_ID</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>$ARTIFACT_ID</name>
+  <description>Projeto Vaadin com Spring Boot</description>
+
+  <properties>
+    <java.version>$JAVA_VERSION</java.version>
+    <vaadin.version>$VAADIN_VERSION</vaadin.version>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.vaadin</groupId>
+        <artifactId>vaadin-bom</artifactId>
+        <version>\${vaadin.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>vaadin-spring-boot-starter</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-devtools</artifactId>
+      <scope>runtime</scope>
+      <optional>true</optional>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.vaadin</groupId>
+      <artifactId>vaadin-dev</artifactId>
+      <optional>true</optional>
+    </dependency>
+
+  </dependencies>
+
+  <build>
+    <plugins>
+
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+      </plugin>
+
+      <plugin>
+        <groupId>com.vaadin</groupId>
+        <artifactId>vaadin-maven-plugin</artifactId>
+        <version>\${vaadin.version}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>prepare-frontend</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
+    </plugins>
+  </build>
+
+  <profiles>
+
+    <profile>
+      <id>production</id>
+
+      <dependencies>
+        <dependency>
+          <groupId>com.vaadin</groupId>
+          <artifactId>vaadin-core</artifactId>
+          <exclusions>
+            <exclusion>
+              <groupId>com.vaadin</groupId>
+              <artifactId>vaadin-dev</artifactId>
+            </exclusion>
+          </exclusions>
+        </dependency>
+      </dependencies>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>com.vaadin</groupId>
+            <artifactId>vaadin-maven-plugin</artifactId>
+            <version>\${vaadin.version}</version>
+            <executions>
+              <execution>
+                <goals>
+                  <goal>build-frontend</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+
+    </profile>
+
+  </profiles>
+
+</project>
+EOF
+
+cat > "$SRC_MAIN_JAVA/App.java" <<EOF
+package $GROUP_ID;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class App {
+
+    public static void main(String[] args) {
+        SpringApplication.run(App.class, args);
+    }
+}
+EOF
+
+cat > "$SRC_MAIN_JAVA/MainView.java" <<EOF
+package $GROUP_ID;
+
+import com.vaadin.flow.component.button.Button;
+import com.vaadin.flow.component.html.H1;
+import com.vaadin.flow.component.notification.Notification;
+import com.vaadin.flow.component.orderedlayout.VerticalLayout;
+import com.vaadin.flow.router.Route;
+import com.vaadin.flow.theme.lumo.LumoUtility;
+
+@Route("")
+public class MainView extends VerticalLayout {
+
+    public MainView() {
+        setSizeFull();
+        setAlignItems(Alignment.CENTER);
+        setJustifyContentMode(JustifyContentMode.CENTER);
+
+        H1 titulo = new H1("$ARTIFACT_ID");
+        titulo.addClassName(LumoUtility.Margin.NONE);
+
+        Button botao = new Button(
+            "Clique aqui",
+            evento -> Notification.show(
+                "Olá, mundo!",
+                3000,
+                Notification.Position.TOP_CENTER
+            )
+        );
+
+        add(titulo, botao);
+    }
+}
+EOF
+
+cat > "$SRC_TEST_JAVA/AppTest.java" <<EOF
+package $GROUP_ID;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.jupiter.api.Test;
+
+class AppTest {
+
+    @Test
+    void aplicacaoPodeSerInstanciada() {
+        App app = new App();
+
+        assertNotNull(app);
+    }
+}
+EOF
+
+cat > "$SRC_MAIN_RESOURCES/application.properties" <<EOF
+spring.application.name=$ARTIFACT_ID
+
+server.port=8080
+
+vaadin.launch-browser=true
+EOF
+
+cat > "$BASE_DIR/README.md" <<EOF
+# $ARTIFACT_ID
+
+Projeto criado automaticamente com:
+
+- Java $JAVA_VERSION
+- Spring Boot $SPRING_BOOT_VERSION
+- Vaadin $VAADIN_VERSION
+- Maven
+
+## Executar em modo de desenvolvimento
+
+\`\`\`bash
+mvn spring-boot:run
+\`\`\`
+
+Depois acesse:
+
+\`\`\`text
+http://localhost:8080
+\`\`\`
+
+## Executar os testes
+
+\`\`\`bash
+mvn test
+\`\`\`
+
+## Gerar pacote de desenvolvimento
+
+\`\`\`bash
+mvn clean package
+\`\`\`
+
+## Gerar pacote de produção
+
+\`\`\`bash
+mvn clean package -Pproduction
+\`\`\`
+
+O arquivo gerado estará em:
+
+\`\`\`text
+target/$ARTIFACT_ID-1.0-SNAPSHOT.jar
+\`\`\`
+
+## Executar o JAR
+
+\`\`\`bash
+java -jar target/$ARTIFACT_ID-1.0-SNAPSHOT.jar
+\`\`\`
+EOF
+
+echo
+echo "Projeto '$ARTIFACT_ID' criado com sucesso."
+echo
+echo "Para executar:"
+echo "  cd '$ARTIFACT_ID'"
+echo "  mvn spring-boot:run"
+echo
+echo "Acesse: http://localhost:8080"