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HtmlUnit adaptation of NekoHtml. It has the same functionality but exposing HTMLElements to be overridden.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.sourceforge.htmlunit.xerces.util;

import java.util.Random;

/**
 * Fills an array with a random sequence of prime numbers.
 *
 */
final class PrimeNumberSequenceGenerator {

    private static final int [] PRIMES = {
        3,   5,   7,  11,  13,  17,  19,  23,  29,  31,  37,  41,  43,  47,  53,  59,
       61,  67,  71,  73,  79,  83,  89,  97, 101, 103, 107, 109, 113, 127, 131, 137,
      139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227,
      229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313,
      317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419,
      421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509,
      521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617,
      619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727};

    static void generateSequence(int[] arrayToFill) {
        Random r = new Random();
        for (int i = 0; i < arrayToFill.length; ++i) {
            arrayToFill[i] = PRIMES[r.nextInt(PRIMES.length)];
        }
    }
}