This specific regular expression pattern checks that the received parameter value:

* `^`: starts with the following characters, doesn't have characters before.
* `fixedquery`: has the exact value `fixedquery`.
* `$`: ends there, doesn't have any more characters after `fixedquery`.

    private final URL url;

    private DfsReferralData dfsReferral = null; // For getDfsPath() and getServerWithDfs()

    private String unc; // Initially null; set by getUncPath; never ends with '/'
    private String uncBeforeDfsReferal;
    private String canon; // Initially null; set by getUncPath; dir must end with '/'
    private String share; // Can be null

    private Address[] addresses;

     * Test with data that has exact boundary conditions
     */
    @Test
    @DisplayName("Handle exact boundary data size")
    void testExactBoundarySize() throws CIFSException {
        // Test with data that ends exactly at the position where EOL should be checked
        byte[] data = new byte[0];
        byte[] avPairData = createAvPairData(AvPair.MsvAvTargetName, data);
        byte[] eolData = createEolData();

 * segments `["a", "b"]` build "/a/b" and the segments `["a", "b", ""]` build "/a/b/".
 *
 * If a path's last segment is the empty string then the path ends with "/". This class always
 * builds non-empty paths: if the path is omitted it defaults to "/". The default path's segment
 * list is a single empty string: `[""]`.
 *
 * ### Query
 *

    testRotate(new char[] {'1'}, 1, 0, 1, new char[] {'1'});
    testRotate(new char[] {'1'}, 1, 1, 1, new char[] {'1'});

    // Rotate the central 5 elements, leaving the ends as-is
    testRotate(
        new char[] {'0', '1', '2', '3', '4', '5', '6'},
        -6,
        1,
        6,
        new char[] {'0', '2', '3', '4', '5', '1', '6'});
    testRotate(

      array[j] = tmp;
    }
  }

  /**
   * Performs a right rotation of {@code array} of "distance" places, so that the first element is
   * moved to index "distance", and the element at index {@code i} ends up at index {@code (distance
   * + i) mod array.length}. This is equivalent to {@code Collections.rotate(Chars.asList(array),
   * distance)}, but is considerably faster and avoids allocation and garbage collection.
   *

      array[j] = tmp;
    }
  }

  /**
   * Performs a right rotation of {@code array} of "distance" places, so that the first element is
   * moved to index "distance", and the element at index {@code i} ends up at index {@code (distance
   * + i) mod array.length}. This is equivalent to {@code Collections.rotate(Floats.asList(array),
   * distance)}, but is considerably faster and avoids allocation and garbage collection.
   *

  public void testRemovalNotification_clear_basher() throws InterruptedException {
    // If a clear() happens close to the end of computation, one of two things should happen:
    // - computation ends first: the removal listener is called, and the cache does not contain the
    //   key/value pair
    // - clear() happens first: the removal listener is not called, and the cache contains the pair

  public void testRemovalNotification_clear_basher() throws InterruptedException {
    // If a clear() happens close to the end of computation, one of two things should happen:
    // - computation ends first: the removal listener is called, and the cache does not contain the
    //   key/value pair
    // - clear() happens first: the removal listener is not called, and the cache contains the pair

object.\n * @method\n * @memberof Popper.Utils\n * @param {dataObject} data\n * @param {Array} modifiers\n * @param {String} ends - Optional modifier name used as stopper\n * @returns {dataObject}\n */\nexport default function runModifiers(modifiers, data, ends) {\n  const modifiersToRun = ends === undefined\n    ? modifiers\n    : modifiers.slice(0, findIndex(modifiers, 'name', ends));\n\n  modifiersToRun.forEach(modifier => {\n    if (modifier['function']) { // eslint-disable-line dot-notation\n    ...