A DESCRIPTION OF THE PROBLEM :
httpie tool is a tool for debugging web APIs. When I try to test the performance of ProcessBuilder by using JMH calling an external process "httpie -v google.com", it hangs forever even I intended to consume the output stream.

Another weird thing is that there is no issue when I run by commands but failed with IntelliJ.


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package org.benchmark;


import java.io.*;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
public class runProcessBuilder {
    public static void main(String[] args) {
        try {
            runProcess();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    private static File NULL_FILE = new File(
            (System.getProperty("os.name")
                    .startsWith("Windows") ? "NUL" : "/dev/null")
    );
    public static int runProcess() throws IOException, InterruptedException {
        String cmd = "https -h google.com";
        List<String> commandList = Arrays.asList(cmd.split(" "));
        ProcessBuilder pb = new ProcessBuilder(commandList).inheritIO();
// pb.redirectOutput(ProcessBuilder.Redirect.DISCARD);
// pb.redirectError(ProcessBuilder.Redirect.DISCARD);
        pb.redirectOutput(NULL_FILE);
        Process p = pb.start();
        return p.waitFor();
    }
}
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