if (spec == null) {
            return null;
        }

        VersionRange cached = CACHE_SPEC.get(spec);
        if (cached != null) {
            return cached;
        }

        List<Restriction> restrictions = new ArrayList<>();
        String process = spec;
        ArtifactVersion version = null;
        ArtifactVersion upperBound = null;
        ArtifactVersion lowerBound = null;

     */
    public byte[] getBuffer() {
        return this.buf;
    }

    /**
     * Aligns the buffer index to the specified boundary with a fill value.
     *
     * @param boundary the alignment boundary
     * @param value the fill value for padding
     * @return the number of bytes added for alignment
     */
    public int align(final int boundary, final byte value) {

    @Override
    public void clear() {
      Arrays.fill(hashTable, null);
      size = 0;
      for (ValueEntry<K, V> entry = firstEntry; entry != null; entry = entry.successorInValueSet) {
        multimapIterationChain.delete(entry);
        // TODO(cpovirk): Also clear *InValueSet (after reading next) and nextInValueBucket?
      }
      firstEntry = null;
      lastEntry = null;
      modCount++;
    }
  }

   * high 32 bits of each long is the "prev" pointer, whereas the low 32 bits is the "succ" pointer
   * (pointing to the nextEntry entry in the linked list). The pointers in [size(), entries.length)
   * are all "null" (UNSET).
   *
   * <p>A node with "prev" pointer equal to {@code ENDPOINT} is the first node in the linked list,
   * and a node with "nextEntry" pointer equal to {@code ENDPOINT} is the last node.
   */

    }

    @Test
    @DisplayName("Should handle null configuration gracefully")
    void testNullConfiguration() {
        // When - constructor accepts null config without throwing
        Smb2TreeDisconnectResponse responseWithNull = new Smb2TreeDisconnectResponse(null);

        // Then - response is created successfully
        assertNotNull(responseWithNull);
    }

    for (Constructor<X> constructor : preferringStringsThenThrowables(constructors)) {
      X instance = newFromConstructor(constructor, cause);
      if (instance != null) {
        if (instance.getCause() == null) {
          instance.initCause(cause);
        }
        return instance;
      }
    }
    throw new IllegalArgumentException(

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

    LockSupport.unpark(waiter2); // spurious wakeup
    waiter2.awaitWaiting(); // should eventually re-park

    future.set(null);
    waiter2.join();
  }

  public void testRemoveWaiter_polling() throws Exception {
    AbstractFuture<String> future = new AbstractFuture<String>() {};
    WaiterThread waiter = new WaiterThread(future);

   *
   * @throws NullPointerException if the element is null
   * @since 6.0 (source-compatible since 2.0)
   */
  public static <E> ImmutableMultiset<E> of(E e1) {
    return copyFromElements(e1);
  }

  /**
   * Returns an immutable multiset containing the given elements, in order.
   *
   * @throws NullPointerException if any element is null
   * @since 6.0 (source-compatible since 2.0)
   */

    @Test
    @DisplayName("Should handle different file IDs")
    void testDifferentFileIds() {
        // Given
        byte[] fileId1 = new byte[16];
        Arrays.fill(fileId1, (byte) 0x11);

        byte[] fileId2 = new byte[16];
        Arrays.fill(fileId2, (byte) 0xFF);

        byte[] fileId3 = new byte[16];
        for (int i = 0; i < 16; i++) {
            fileId3[i] = (byte) i;
        }

  @JvmStatic
  fun headerEntries(vararg elements: String?): List<Header> = List(elements.size / 2) { Header(elements[it * 2]!!, elements[it * 2 + 1]!!) }

  @JvmStatic
  fun repeat(
    c: Char,
    count: Int,
  ): String {
    val array = CharArray(count)
    Arrays.fill(array, c)
    return String(array)
  }

  /**