Dauert das Parsen von URIs lange?

ParseURIs.java

package net.earthlingsoft.uritest;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;

public class ParseURIs {

    public static void main(String[] args) {
        validateUris();
        measureValidationSpeed(false);
        measureValidationSpeed(true);
    }

    private static void validateUris() {
        Stream.of(
                "lollo",
                "http://lollo.de",
                "https://lollo.de",
                "http://lollo.dä/",
                "http://lollo.net/gägä",
                "http://lollo.net/gä gä",
                "http://lollo.net/gä%20gä",
                "http://lollo.net/gä%20gä?lollo",
                "http://lollo.net/gä%20gä?lol lo",
                "http://lollo.net/gä%20gä?lol=lo",
                "urn:nbn:de:gbv:089-2683311469",
                "urn:nbn:de:gbv:089-3321752945/fragment/page=40/highlight=220,620,550,820/zoom=150",
                "hdl:4263537/4086",
                "ark:/13030/tf5p30086k"
        )
                .forEach(s -> parseUri(s, true));
    }

    private static void measureValidationSpeed(final boolean broken) {
        final int numberOfUris = 1_000_000;
        final String brokenString = broken ? " " : "";
        final List<String> uris = IntStream.range(0, numberOfUris)
                .mapToObj(i -> "http://lollo.de/" + i + "/lol" + brokenString + "lo")
                .collect(Collectors.toList());

        final long startTime = System.currentTimeMillis();

        uris.forEach(s -> parseUri(s, false));

        final long finishTime = System.currentTimeMillis();
        System.out.println(String.format(
                "\n %s ms - %s URIs. broken: %s",
                String.valueOf(finishTime - startTime),
                numberOfUris,
                broken));
        // ~ 3 seconds for 1_000_000 iterations.
    }


    private static URI parseUri(final String uriString, final boolean log) {
        try {
            final URI uri = new URI(uriString);
            if (log) {
                System.out.println(uri + ": OK");
            }
            return uri;
        } catch (URISyntaxException e) {
            if (log) {
                System.out.println(uriString + ": XXXX (" + e.getMessage() + ")");
            }
        }
        return null;
    }

}

Result.text

lollo: OK
http://lollo.de: OK
https://lollo.de: OK
http://lollo.dä/: OK
http://lollo.net/gägä: OK
http://lollo.net/gä gä: XXXX (Illegal character in path at index 19: http://lollo.net/gä gä)
http://lollo.net/gä%20gä: OK
http://lollo.net/gä%20gä?lollo: OK
http://lollo.net/gä%20gä?lol lo: XXXX (Illegal character in query at index 28: http://lollo.net/gä%20gä?lol lo)
http://lollo.net/gä%20gä?lol=lo: OK
urn:nbn:de:gbv:089-2683311469: OK
urn:nbn:de:gbv:089-3321752945/fragment/page=40/highlight=220,620,550,820/zoom=150: OK
hdl:4263537/4086: OK
ark:/13030/tf5p30086k: OK

 1157 ms - 1000000 URIs. broken: false

 2243 ms - 1000000 URIs. broken: true

Process finished with exit code 0