LinuxEphemeralPortRangeDetector#getInstance fails on Java 8 #8870

🐛 Bug Report

Root cause:
This recent change added Charset to new FileReader(...) which does not have that overloaded constructor in Java 8.

I've just updated my project to 4.0.0-alpha-7 (from 4.0.0-alpha-6), it's (unfortunately) running with Java 8 but it can no longer start Chrome.

Is Java 11 a requirement for Selenium 4.0.0-alpha-7?

To Reproduce

Detailed steps to reproduce the behaviour:

Try to start chrome but it fails with the following:

java.lang.NoSuchMethodError: java.io.FileReader.<init>(Ljava/io/File;Ljava/nio/charset/Charset;)V
	at org.openqa.selenium.net.LinuxEphemeralPortRangeDetector.getInstance(LinuxEphemeralPortRangeDetector.java:36)
	at org.openqa.selenium.net.PortProber.<clinit>(PortProber.java:42)
	at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:401)
	at org.openqa.selenium.chrome.ChromeDriverService.createServiceWithConfig(ChromeDriverService.java:133)
	at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:139)

Expected behaviour

Chrome opens (then quits).

Test script or set of commands reproducing this issue

With Java 8 compile and run:

import org.openqa.selenium.chrome.ChromeDriver;

public class Test {

	public static void main(String[] args) {
		ChromeDriver chromeDriver = new ChromeDriver();
		chromeDriver.quit();
	}
}

Environment

OS: Linux (Ubuntu 18.04)
Browser: Chrome
Browser version: 86
Browser Driver version: Chromedriver 86
Language Bindings version: Java 4.0.0-alpha-7
Selenium Grid version (if applicable): n/a