introduce a parent POM for Spring Boot projects (#162)

Author: rieckpil

.github/workflows/maven.yml

@@ -1,68 +1,30 @@
-name: Build Maven Projects
+name: Build Maven Projects (Java 8, 11, 17)
+
 on:
   push:
   schedule:
     - cron: '0 5 * * SUN'
+
 jobs:
-  build-java-8-and-17-projects:
+  build-java-8-11-17-projects:
     strategy:
       fail-fast: false
       matrix:
-        versions: [8, 17]
-    runs-on: ubuntu-20.04
+        versions: [8, 11, 17]
+    runs-on: ubuntu-latest
     name: Build Java ${{ matrix.versions }} projects
     steps:
       - name: VCS checkout
-        uses: actions/checkout@v1
-
-      - name: Set up cache
-        uses: actions/cache@v1
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-jdk${{ matrix.versions }}-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-jdk${{ matrix.versions }}-
+        uses: actions/checkout@v4
 
       - name: Set up JDK ${{ matrix.versions }}
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
           java-version: ${{ matrix.versions }}
-          distribution: 'adopt'
-          java-package: 'jdk'
+          distribution: adopt
+          cache: maven
 
       - name: Build all projects with Maven
         run: |
           chmod +x ./buildJdk${{ matrix.versions }}Projects.sh
           ./buildJdk${{ matrix.versions }}Projects.sh
-
-  build-java-11-project-batches:
-    strategy:
-      fail-fast: false
-      matrix:
-        batch: [1, 2, 3]
-    runs-on: ubuntu-20.04
-    name: Build Java 11 Batch ${{ matrix.batch }} projects
-    steps:
-      - name: VCS checkout
-        uses: actions/checkout@v1
-
-      - name: Set up cache
-        uses: actions/cache@v1
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-jdk${{ matrix.batch }}-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-jdk${{ matrix.batch }}-
-
-      - name: Set up JDK $11
-        uses: actions/setup-java@v2
-        with:
-          java-version: 11
-          distribution: 'adopt'
-          java-package: 'jdk'
-
-      - name: Build all projects of batch with Maven
-        run: |
-          chmod +x ./buildJdk11Projects_0${{ matrix.batch }}.sh
-          ./buildJdk11Projects_0${{ matrix.batch }}.sh
-          

.github/workflows/sampleJavaMavenProject.yml

@@ -4,62 +4,62 @@ on: [push]
 
 jobs:
   compile:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ 11, 12, 13 ]
+        java: [ 21 ]
     name: Java ${{ matrix.java }} compile
     steps:
       - name: Checkout Source Code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
+
       - name: Setup Java
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           distribution: 'adopt'
           java-package: jdk
           java-version: ${{ matrix.java }}
+
       - name: Compile the Project
-        working-directory: github-actions-java-maven
-        run: mvn -B compile
+        run: ./mvnw -f github-actions-java-maven/pom.xml -B compile
 
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     needs: compile
     name: Build the Maven Project
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/cache@v2
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
-      - name: Set up JDK 11
-        uses: actions/setup-java@v2
+      - uses: actions/checkout@v3
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v3
         with:
           distribution: 'adopt'
-          java-version: '11'
+          java-version: '21'
           java-package: jdk
+          cache: 'maven'
+
       - name: Build and test project
-        working-directory: github-actions-java-maven
-        run: mvn -B verify
+        run: ./mvnw -f github-actions-java-maven/pom.xml -B verify
+
       - name: Upload Maven build artifact
         uses: actions/upload-artifact@v2
         with:
           name: artifact.jar
           path: github-actions-java-maven/target/github-actions-java-maven.jar
 
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     needs: build
     name: Build Docker Container and Deploy to Kubernetes
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
+
       - name: Download Maven build artifact
         uses: actions/download-artifact@v2
         with:
           name: artifact.jar
           path: github-actions-java-maven/target
+
       - name: Build Docker container
         working-directory: github-actions-java-maven
         run: |
@@ -68,7 +68,9 @@ jobs:
         env:
           SUPER_SECRET: ${{ secrets.SUPER_SECRET }}
         run: echo "Content of secret - $SUPER_SECRET"
+
       - name: Push Docker images
         run: echo "Pushing Docker image to Container Registry (e.g. ECR)"
+
       - name: Deploy application
         run: echo "Deploying application (e.g. Kubernetes)"

.gitignore

@@ -1,3 +1,6 @@
 .DS_Store
 .idea
-*.iml
+*.iml
+*.bak
+target
+spotless-index

.pre-commit-config.yaml

@@ -0,0 +1,17 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: https://github.com/Lucas-C/pre-commit-hooks
+    rev: v1.5.4
+    hooks:
+      - id: forbid-crlf
+      - id: remove-crlf
+  - repo: https://github.com/ejba/pre-commit-maven
+    rev: v0.3.4
+    hooks:
+      - id: maven
+        args: ['-f pom.xml spotless:apply']

avoid-repeating-attributes-in-jpa-entities/pom.xml

@@ -3,27 +3,20 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
-  <groupId>de.blog.rieckpil</groupId>
+  <parent>
+    <groupId>de.rieckpil.blog</groupId>
+    <artifactId>blog-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
   <artifactId>avoid-repeating-attributes-in-jpa-entities</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>avoid-repeating-attributes-in-jpa-entities</name>
   <description>Demo project fo avoiding repeated attributes in JPA entities</description>
 
-  <parent>
-    <groupId>org.springframework.boot</groupId>
-    <artifactId>spring-boot-starter-parent</artifactId>
-    <version>2.3.0.RELEASE</version>
-    <relativePath/> <!-- lookup parent from repository -->
-  </parent>
-
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-    <java.version>11</java.version>
-  </properties>
-
   <dependencies>
     <dependency>
       <groupId>org.springframework.boot</groupId>

avoid-repeating-attributes-in-jpa-entities/src/main/java/de/blog/rieckpil/BaseEnterpriseEntity.java

@@ -1,13 +1,12 @@
 package de.blog.rieckpil;
 
+import jakarta.persistence.*;
+import java.time.LocalDateTime;
+import java.util.concurrent.ThreadLocalRandom;
 import lombok.Data;
 import org.hibernate.annotations.CreationTimestamp;
 import org.hibernate.annotations.UpdateTimestamp;
 
-import javax.persistence.*;
-import java.time.LocalDateTime;
-import java.util.concurrent.ThreadLocalRandom;
-
 @Data
 @MappedSuperclass
 public class BaseEnterpriseEntity {
@@ -18,15 +17,12 @@ public class BaseEnterpriseEntity {
 
   private String internId;
 
-  @CreationTimestamp
-  private LocalDateTime createdAt;
+  @CreationTimestamp private LocalDateTime createdAt;
 
-  @UpdateTimestamp
-  private LocalDateTime updatedAt;
+  @UpdateTimestamp private LocalDateTime updatedAt;
 
   @PrePersist
   public void prePersist() {
     this.internId = String.valueOf(Math.abs(ThreadLocalRandom.current().nextInt()));
   }
-
 }

avoid-repeating-attributes-in-jpa-entities/src/main/java/de/blog/rieckpil/Customer.java

@@ -1,10 +1,9 @@
 package de.blog.rieckpil;
 
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
 import lombok.Data;
 
-import javax.persistence.Column;
-import javax.persistence.Entity;
-
 @Data
 @Entity
 public class Customer extends BaseEnterpriseEntity {
@@ -14,5 +13,4 @@ public class Customer extends BaseEnterpriseEntity {
 
   @Column(nullable = false, length = 40)
   private String customerId;
-
 }

avoid-repeating-attributes-in-jpa-entities/src/main/java/de/blog/rieckpil/CustomerRepository.java

@@ -2,5 +2,4 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
-public interface CustomerRepository extends JpaRepository<Customer, Long> {
-}
+public interface CustomerRepository extends JpaRepository<Customer, Long> {}

avoid-repeating-attributes-in-jpa-entities/src/main/java/de/blog/rieckpil/DatabaseFiller.java

@@ -9,7 +9,8 @@ public class DatabaseFiller implements CommandLineRunner {
   private final CustomerRepository customerRepository;
   private final ProductRepository productRepository;
 
-  public DatabaseFiller(CustomerRepository customerRepository, ProductRepository productRepository) {
+  public DatabaseFiller(
+      CustomerRepository customerRepository, ProductRepository productRepository) {
     this.customerRepository = customerRepository;
     this.productRepository = productRepository;
   }

avoid-repeating-attributes-in-jpa-entities/src/main/java/de/blog/rieckpil/Product.java

@@ -1,10 +1,9 @@
 package de.blog.rieckpil;
 
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
 import lombok.Data;
 
-import javax.persistence.Column;
-import javax.persistence.Entity;
-
 @Data
 @Entity
 public class Product extends BaseEnterpriseEntity {
@@ -13,5 +12,4 @@ public class Product extends BaseEnterpriseEntity {
   private String name;
 
   private int amount;
-
 }

avoid-repeating-attributes-in-jpa-entities/src/main/java/de/blog/rieckpil/ProductRepository.java

@@ -2,5 +2,4 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
-public interface ProductRepository extends JpaRepository<Product, Long> {
-}
+public interface ProductRepository extends JpaRepository<Product, Long> {}

avoid-repeating-attributes-in-jpa-entities/src/test/java/de/blog/rieckpil/ApplicationTests.java

@@ -7,7 +7,5 @@
 public class ApplicationTests {
 
   @Test
-  public void contextLoads() {
-  }
-
+  public void contextLoads() {}
 }

buildJdk11Projects_01.sh buildJdk11Projects.sh

@@ -5,30 +5,31 @@ set -o pipefail
 
 mvn -B -f consumer-driven-contracts-with-spring-cloud-contract/book-store-server install
 
-declare -a arr=("whats-new-in-spring-boot-2.1"
+declare -a arr=(
  "charts-in-pdf-java-ee"
- "avoid-repeating-attributes-in-jpa-entities"
  "java-benchmarking-with-jmh"
- "lazy-loading-of-jpa-attributes-with-hibernate"
  "graalvm-intro"
- "send-emails-with-sendgrid-and-spring-boot"
  "bootstrap-jakarta-ee-8-application"
  "custom-maven-archetype"
- "demo-crud-application"
- "dynamic-sql-querying-with-pagination"
- "deploy-spring-boot-to-gke"
- "spring-boot-hibernate-flyway-best-practices"
  "guide-to-jakarta-ee-with-react-and-postgresql"
  "five-java-9-features"
  "consumer-driven-contracts-with-spring-cloud-contract/book-store-client"
  "java-ee-with-kotlin"
- "spring-boot-with-kotlin"
- "difference-between-mock-and-mockbean"
- "spring-boot-override-test-properties"
  "test-java-http-clients"
- "spring-boot-test-mail-sending"
- "spring-boot-shedlock"
- "spring-data-mongo-test-testcontainers"
+  "telegram-bot-notifications-with-java"
+  "websockets-with-jakarta-ee"
+  "open-liberty-maven-plugin-review"
+  "jakarta-ee-react-file-handling"
+  "review-microshed-testing"
+  "whats-new-in-microprofile-3.1"
+  "serverless-java-aws-examples/thumbnail-generator"
+  "serverless-java-aws-examples/spring-cloud-function-aws"
+  "serverless-java-aws-examples/spring-cloud-function-kotlin-aws"
+  "five-unknown-junit-5-features"
+  "mockito-tips-and-tricks"
+  "testing-libraries-overview"
+  "testing-java-applications-with-maven"
+  "open-rewrite-example"
  )
 
 for project in "${arr[@]}"