this.value1 = value1;
    }

    /**
     * Returns the second value.
     *
     * @return The second value
     */
    public T2 getValue2() {
        return value2;
    }

    /**
     * Sets the second value.
     *
     * @param value2
     *            The second value
     */
    public void setValue2(final T2 value2) {
        this.value2 = value2;

    }

    /**
     * Returns the second value.
     *
     * @return The second value
     */
    public T2 getSecond() {
        return second;
    }

    /**
     * Sets the second value.
     *
     * @param second
     *            The second value
     */
    public void setSecond(final T2 second) {
        this.second = second;
    }

    @Override

  fun emptyCache(parameters: Pair<FileSystem, Boolean>) {
    setUp(parameters.first, parameters.second)
    cache.close()
    assertJournalEquals()
  }

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)
  fun recoverFromInitializationFailure(parameters: Pair<FileSystem, Boolean>) {
    setUp(parameters.first, parameters.second)
    // Add an uncommitted entry. This will get detected on initialization, and the cache will

        String first = "first";
        String second = "second";
        String componentName = "testComponent";

        ComponentUtil.register(first, componentName);
        String retrieved1 = ComponentUtil.getComponent(componentName);
        assertSame(first, retrieved1);

        ComponentUtil.register(second, componentName);
        String retrieved2 = ComponentUtil.getComponent(componentName);

      if (first == null) {
        actionWhenFirstParamIsNull.act();
      }
      if (second == null) {
        actionWhenSecondParamIsNull.act();
      }
    }

    /** Two-arg method with no Nullable params. */
    public void normalNormal(String first, Integer second) {
      reactToNullParameters(first, second);
    }

    public int compare(@Nullable String first, @Nullable String second) {
      if (first == second) {
        return 0;
      } else if (first == null) {
        return -1;
      } else if (second == null) {
        return 1;
      } else if (first.length() != second.length()) {
        return first.length() - second.length();
      } else {
        return first.compareTo(second);
      }
    }
  }

   * @param second the second array of elements to concatenate
   * @param type the component type of the returned array
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  public static <T extends @Nullable Object> T[] concat(
      T[] first, T[] second, Class<@NonNull T> type) {
    T[] result = newArray(type, first.length + second.length);
    arraycopy(first, 0, result, 0, first.length);

        this.value1 = value1;
    }

    /**
     * Returns the second value.
     *
     * @return The second value
     */
    public T2 getValue2() {
        return value2;
    }

    /**
     * Sets the second value.
     *
     * @param value2
     *            The second value
     */
    public void setValue2(final T2 value2) {
        this.value2 = value2;

        this.value1 = value1;
    }

    /**
     * Returns the second value.
     *
     * @return The second value
     */
    public T2 getValue2() {
        return value2;
    }

    /**
     * Sets the second value.
     *
     * @param value2
     *            The second value
     */
    public void setValue2(final T2 value2) {
        this.value2 = value2;

     */
    protected ObjectUtil() {
    }

    /**
     * Returns true if the two objects are equal, or both are null.
     *
     * @param object1 the first object
     * @param object2 the second object
     * @return true if equal or both null, false otherwise
     */
    public static boolean equals(final Object object1, final Object object2) {
        if (object1 == object2) {
            return true;
        }