Use Java 21 #1168

	# This workflow will build a Java project with Maven
	# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven

	name: Build

	on:
	push:
	workflow_dispatch:
	inputs:
	name:
	description: 'GitHub Actions'
	required: true
	default: 'GitHub Actions'

	env:
	MAVEN_OPTS: -Dio.netty.tryReflectionSetAccessible=true

	jobs:
	JDK17:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Set up JDK 21
	uses: actions/setup-java@v4
	with:
	distribution: 'corretto'
	java-version: 21
	architecture: x64

	- name: Grant Permission
	run: sudo chmod +x ./mvnw

	- name: Install
	run: ./mvnw -T 4C -B -ntp clean install -DskipTests

	- name: Run Tests
	run: ./mvnw -B -ntp clean test

	- name: Upload Code Coverage
	run: bash <(curl -s https://codecov.io/bash)

Provide feedback