ADDITIONAL SYSTEM INFORMATION :
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful

A DESCRIPTION OF THE PROBLEM :
A simple pattern with a non-capturing group causes StackOverflowError on small-ish input of 1600 integers.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Source code attached.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The operation should complete successfully based on length of input to heap memory and not sensitive to stack memory limit.
ACTUAL -
The operation caused a StackOverflowError.

---------- BEGIN SOURCE ----------
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import java.util.concurrent.ThreadLocalRandom;
import java.util.regex.Pattern;

public class Test {
    public static void main(String[] args) {
        Pattern pattern = Pattern.compile("^[1-9][0-9]*(?:, [1-9][0-9]*)*$");

        for (int n = 100; n > 0; n *= 2) {
            test(pattern, n);
        }
    }

    private static void test(Pattern pattern, int n) {
        String line = generate(n);

        System.out.print("Testing line of " + n + " numbers...");
        boolean found = pattern.matcher(line).find();
        System.out.println(found ? "matched." : "not matched.");
    }

    private static String generate(int n) {
        StringBuilder buf = new StringBuilder();
        buf.append(ThreadLocalRandom.current().nextInt(1, 1000));
        for (n--; n > 0; n--) {
            buf.append(", ");
            buf.append(ThreadLocalRandom.current().nextInt(1, 1000));
        }
        return buf.toString();
    }
}
---------- END SOURCE ----------

FREQUENCY : always