Simple JDK 11+ HTTP Client usage, POST'ing formdata

DemoApplication.java

package com.example.demo;

import static java.nio.charset.StandardCharsets.UTF_8;

import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpRequest.BodyPublishers;
import java.net.http.HttpResponse.BodyHandlers;
import java.util.Map;
import java.util.stream.Collectors;

public class DemoApplication {

	public static void main(String[] args) throws Exception {
		var tenant = "4711";
		var bodyContent = Map.of("id", 1);

		var formData = bodyContent.entrySet().stream()
			.map(e -> URLEncoder.encode(e.getKey(), UTF_8) + "=" + URLEncoder.encode(e.getValue().toString(), UTF_8))
			.collect(Collectors.joining("&"));

		var client = HttpClient.newHttpClient();
		var request = HttpRequest.newBuilder()
			.uri(URI.create("/" + tenant + "/oauth2/v2.0/token"))
			.POST(BodyPublishers.ofString(formData))
			.build();
			  
		var response = client.send(request, BodyHandlers.ofString());
		System.out.println(response.statusCode());
		System.out.println(response.body());
	}
}

pom.xml

<?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>	
	<groupId>com.example</groupId>
	<artifactId>demo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<properties>
		<java.version>13</java.version>

		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>
        <maven.version>3.6.3</maven.version>
        <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>    
        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
	</properties>
</project>