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Prepare for initial release 🌟 🥇 (#4)
* Initial Maven project commit * Changed repository and project in badges * Added test cases for new coding challenges and scenarios * Fixes to several failed test cases and implemented new problem challenges. Closes #1 * Maven build and code-coverage configuration with `JaCoCo` * Added default Maven GitHub Action workflow * Lint fixes for workflows/maven.yml * [no ci] Added ReversePolishNotation and StoneWall implementation and their test cases * Added more tests in MinimumBinaryFlips with some modifications * Added new GitHub Action workflow for dependency review, new coding challenge question created (partial) * Added Jenkins CI configuration and new GitHub Action workflow * Changes to GHA workflows [skip ci] * Added GHA for CodeQL [no ci] * Added Gradle build to generate reports and test suites for release * [no ci] Removed CodeQL and Maven GHAs; Added combined CI workflow * Added binary tree operations and its test cases [no ci] * Added new challenge questions asked on Amazon interview * maven: Added JVM and Maven extensions * feat(challenge): Added new problem statements and their unit tests with introduction of Instancio * feat(codesignal): Closes #3 for CountDistinctSlices * feat(codesignal): Removed EquiLeader implementation, closes #3 * ci(github): Reviewed and updated CI pipeline for GitHub Actions * ci(github): Re-configured GHA workflow for CI * bugfix(test-cases): Fixed all failing JUnit test cases
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‎.gitattributes

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#
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# https://help.github.com/articles/dealing-with-line-endings/
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#
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# Linux start script should use lf
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/gradlew text eol=lf
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# These are Windows script files and should use crlf
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*.bat text eol=crlf
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‎.github/workflows/ci.yml

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# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
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# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
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# This workflow uses actions that are not certified by GitHub.
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# They are provided by a third-party and are governed by
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# separate terms of service, privacy policy, and support
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# documentation.
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name: Build and Release
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on:
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push:
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branches: ['main']
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pull_request:
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branches: [ 'main' ]
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workflow_dispatch:
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permissions:
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contents: read
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packages: read
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statuses: write # To report GitHub Actions status checks
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actions: read # Needed for detection of GitHub Actions environment.
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id-token: write # Needed for provenance signing and ID.
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pull-requests: write
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jobs:
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gradle-build:
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name: Build with Gradle
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runs-on: ubuntu-latest
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steps:
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- name: Checkout sources
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uses: actions/checkout@v4
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- name: Setup Java
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uses: actions/setup-java@v4
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with:
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distribution: 'temurin'
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java-version: 21
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architecture: x64
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- name: Setup Gradle
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uses: gradle/actions/setup-gradle@v4
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with:
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gradle-version: "8.10.2"
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validate-wrappers: false
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add-job-summary-as-pr-comment: 'always'
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add-job-summary: 'always'
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# - name: Validate Gradle Wrapper
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# uses: gradle/actions/wrapper-validation@v4
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- name: Build with Gradle
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run: gradle build
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- name: Upload build reports
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uses: actions/upload-artifact@v4
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if: always()
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with:
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name: build-reports
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path: '**/build/reports/'
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maven-build:
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name: Build with Maven
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runs-on: ubuntu-latest
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steps:
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- name: Checkout sources
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uses: actions/checkout@v4
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- name: Set up JDK 21
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uses: actions/setup-java@v3
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with:
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java-version: 21
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distribution: 'temurin'
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cache: maven
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architecture: x64
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- name: Build and Install
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run: mvn -B clean install
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- name: Build, Package and Test
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run: mvn -B jacoco:prepare-agent clean test package surefire-report:report jacoco:report

‎.github/workflows/dependency-review.yml

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# Dependency Review Action
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#
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# This Action will scan dependency manifest files that change as part of a Pull Request,
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# surfacing known-vulnerable versions of the packages declared or updated in the PR.
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# Once installed, if the workflow run is marked as required, PRs introducing known-vulnerable
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# packages will be blocked from merging.
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#
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# Source repository: https://github.com/actions/dependency-review-action
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# Public documentation: https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-dependency-review#dependency-review-enforcement
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name: 'Dependency Review'
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on:
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pull_request:
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branches: [ 'main' ]
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permissions:
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contents: read
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pull-requests: write
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security-events: write
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jobs:
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dependency-review:
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runs-on: ubuntu-latest
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steps:
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- name: 'Checkout repository'
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uses: actions/checkout@v4
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- name: 'Dependency Review'
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uses: actions/dependency-review-action@v4
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with:
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comment-summary-in-pr: always
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fail-on-severity: moderate
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vulnerability-check: true
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deny-licenses: GPL-1.0-or-later, LGPL-2.0-or-later
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retry-on-snapshot-warnings: true
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show-openssf-scorecard: true

‎.github/workflows/maven.yml

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‎.mvn/extensions.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<extensions>
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<extension>
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<groupId>co.leantechniques</groupId>
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<artifactId>maven-buildtime-extension</artifactId>
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<version>3.0.5</version>
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</extension>
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</extensions>

‎.mvn/jvm.config

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-Xss16m -Xms256m -Xmx1024m -Djava.awt.headless=true

‎Jenkinsfile

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pipeline {
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agent any
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options {
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skipStagesAfterUnstable()
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}
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tools {
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maven 'maven'
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jdk 'jdk21'
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}
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stages {
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stage('Verify') {
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steps {
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sh 'mvn --version'
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sh 'java --version'
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}
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}
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stage('Build') {
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steps {
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sh 'mvn -DskipTests clean install -B --no-transfer-progress'
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}
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}
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stage('Test') {
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steps {
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sh 'mvn test'
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}
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post {
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always {
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junit 'target/surefire-reports/*.xml'
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}
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}
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}
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stage('Deliver') {
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steps {
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sh './jenkins/scripts/deliver.sh'
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}
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}
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}
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}

‎README.md

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# QuickStart-Coding-Challenges
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Quickstart Coding Challenges
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# Quickstart Coding Challenges
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[![Java CI with Maven](https://github.com/shortthirdman/QuickStart-Coding-Challenges/actions/workflows/maven.yml/badge.svg?event=workflow_dispatch)](https://github.com/shortthirdman/QuickStart-Coding-Challenges/actions/workflows/maven.yml)
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![GitHub commit activity](https://img.shields.io/github/commit-activity/w/shortthirdman/QuickStart-Coding-Challenges) ![GitHub](https://img.shields.io/github/license/shortthirdman/QuickStart-Coding-Challenges) ![GitHub last commit](https://img.shields.io/github/last-commit/shortthirdman/QuickStart-Coding-Challenges)
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![GitHub commit activity](https://img.shields.io/github/commit-activity/w/shortthirdman/QuickStart-Coding-Challenges) ![GitHub](https://img.shields.io/github/license/shortthirdman/QuickStart-Coding-Challenges) ![GitHub last commit](https://img.shields.io/github/last-commit/shortthirdman/QuickStart-Coding-Challenges) ![Maintenance](https://img.shields.io/maintenance/yes/2024)
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All Java solutions for various challenges presented during interviews for software development positions.
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## Requirements
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- Apache Maven 3.9.x
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- Java 21
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- JetBrains IntelliJ IDEA (Community/Ultimate)
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- [Apache Maven 3.9.x](https://maven.apache.org/)
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- [OpenJDK/Oracle Java 21](https://www.oracle.com/java/technologies/downloads/)
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- [JetBrains IntelliJ IDEA (Community/Ultimate)](https://www.jetbrains.com/idea/)
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## Run, Test and Code Coverage
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`mvn clean install test`
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```shell
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mvn jacoco:prepare-agent clean test surefire-report:report jacoco:report
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```
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## Release and Tag
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```shell
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mvn jacoco:prepare-agent clean test surefire-report:report jacoco:report -Prelease
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```
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`mvn jacoco:prepare-agent clean test jacoco:report`
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## Contributing
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