HBX-3022: Create 5 Minute Tutorial for Gradle

  - Create initial 5 minute tutorial document
  - Add section to create Gradle Java project
  - Add generated 'docs/examples/5-minute-tutorial' project

Signed-off-by: Koen Aers <[email protected]>

Author: koentsje

gradle/docs/5-minute-tutorial.md

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+<!--
+  ~ Copyright 2004 - 2025 Red Hat, Inc.
+  ~
+  ~ Licensed 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.
+  -->
+
+[![Hibernate](https://static.jboss.org/hibernate/images/hibernate_200x150.png)](https://tools.hibernate.org)
+
+# Hibernate Tools Gradle : 5 Minute Tutorial
+
+The best way to get to know the Hibernate Tools Gradle plugin is to start to use it. 
+Hence we will provide a quick tutorial that gives you the first taste of it.
+Before tackling this tutorial, make sure you have the [Gradle](https://gradle.org) build tool 
+[installed](https://gradle.org/install/) and available on your machine.
+
+## Create a Gradle Java Project
+
+Let’s assume in this case that we start off with a very simple default Gradle Java application
+that we create from a command-line window with the instruction below. 
+
+```
+gradle init --type java-application --dsl groovy
+```
+
+Gradle will ask you some details about your application. The conversation is shown below
+for completenes but of course you can make your own choices.
+
+```
+Enter target Java version (min: 7, default: 21): 
+
+Project name (default: 5-minute-tutorial): 
+
+Select application structure:
+  1: Single application project
+  2: Application and library project
+Enter selection (default: Single application project) [1..2] 1
+
+Select test framework:
+  1: JUnit 4
+  2: TestNG
+  3: Spock
+  4: JUnit Jupiter
+Enter selection (default: JUnit Jupiter) [1..4] 4
+
+Generate build using new APIs and behavior (some features may change in the next minor release)? (default: no) [yes, no] 
+
+
+> Task :init
+Learn more about Gradle by exploring our Samples at https://docs.gradle.org/8.13/samples/sample_building_java_applications.html
+
+BUILD SUCCESSFUL in 19s
+1 actionable task: 1 executed
+```

gradle/docs/examples/5-minute-tutorial/.gitattributes

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+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+
+# Binary files should be left untouched
+*.jar           binary
+

gradle/docs/examples/5-minute-tutorial/.gitignore

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+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build

gradle/docs/examples/5-minute-tutorial/app/build.gradle

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+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * This generated file contains a sample Java application project to get you started.
+ * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/8.13/userguide/building_java_projects.html in the Gradle documentation.
+ */
+
+plugins {
+    // Apply the application plugin to add support for building a CLI application in Java.
+    id 'application'
+}
+
+repositories {
+    // Use Maven Central for resolving dependencies.
+    mavenCentral()
+}
+
+dependencies {
+    // Use JUnit Jupiter for testing.
+    testImplementation libs.junit.jupiter
+
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+
+    // This dependency is used by the application.
+    implementation libs.guava
+}
+
+// Apply a specific Java toolchain to ease working on different environments.
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
+
+application {
+    // Define the main class for the application.
+    mainClass = 'org.example.App'
+}
+
+tasks.named('test') {
+    // Use JUnit Platform for unit tests.
+    useJUnitPlatform()
+}

gradle/docs/examples/5-minute-tutorial/app/src/main/java/org/example/App.java

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+/*
+ * This source file was generated by the Gradle 'init' task
+ */
+package org.example;
+
+public class App {
+    public String getGreeting() {
+        return "Hello World!";
+    }
+
+    public static void main(String[] args) {
+        System.out.println(new App().getGreeting());
+    }
+}

gradle/docs/examples/5-minute-tutorial/app/src/test/java/org/example/AppTest.java

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+/*
+ * This source file was generated by the Gradle 'init' task
+ */
+package org.example;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class AppTest {
+    @Test void appHasAGreeting() {
+        App classUnderTest = new App();
+        assertNotNull(classUnderTest.getGreeting(), "app should have a greeting");
+    }
+}

gradle/docs/examples/5-minute-tutorial/gradle.properties

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+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties
+
+org.gradle.configuration-cache=true
+

gradle/docs/examples/5-minute-tutorial/gradle/libs.versions.toml

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+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
+
+[versions]
+guava = "33.3.1-jre"
+junit-jupiter = "5.11.3"
+
+[libraries]
+guava = { module = "com.google.guava:guava", version.ref = "guava" }
+junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit-jupiter" }

gradle/docs/examples/5-minute-tutorial/gradle/wrapper/gradle-wrapper.jar

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists