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/*
 * Copyright (C) 2020-2021 Thomas Akehurst
 *
 * Licensed 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 com.github.tomakehurst.wiremock.common;

import static java.util.Arrays.copyOf;

import java.lang.reflect.Array;

public final class ArrayFunctions {

  public static  T[] concat(T[] first, T[] second) {
    if (first.length + second.length == 0) {
      return first;
    }
    T[] both = copyOf(first, first.length + second.length);
    System.arraycopy(second, 0, both, first.length, second.length);
    return both;
  }

  public static  T[] prepend(T t, T[] original) {
    @SuppressWarnings("unchecked")
    T[] newArray =
        (T[]) Array.newInstance(original.getClass().getComponentType(), original.length + 1);
    newArray[0] = t;
    System.arraycopy(original, 0, newArray, 1, original.length);
    return newArray;
  }

  private ArrayFunctions() {
    throw new UnsupportedOperationException("not instantiable");
  }
}




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