byte[] src = "Test".getBytes();

        // Test with non-null source array
        int nextOffset = NtlmMessage.writeSecurityBuffer(dest, 0, src);
        assertEquals(4, nextOffset, "Should return correct next offset.");
        assertEquals(src.length, NtlmMessage.readUShort(dest, 0), "Length should be written correctly.");
        assertEquals(src.length, NtlmMessage.readUShort(dest, 2), "Max length should be written correctly.");

    return new UnmodifiableIterator<K>() {
      @Override
      public boolean hasNext() {
        return entryIterator.hasNext();
      }

      @Override
      public K next() {
        return entryIterator.next().getKey();
      }
    };
  }

  private transient @Nullable ImmutableCollection<V> cachedValues = null;

  @Override
  public ImmutableCollection<V> values() {

        AvlNode<E> next = current.succ();

        current.elemCount = 0;
        // Also clear these fields so that one deleted Entry doesn't retain all elements.
        current.left = null;
        current.right = null;
        current.pred = null;
        current.succ = null;

        current = next;
      }
      successor(header, header);

      return -1;
    }
    ListIterator<?> itr = list.listIterator();
    int computedIndex = 0;
    while (itr.hasNext()) {
      int axisIndex = itr.nextIndex();
      int elemIndex = axes.get(axisIndex).indexOf(itr.next());
      if (elemIndex == -1) {
        return -1;
      }
      computedIndex += elemIndex * axesSizeProduct[axisIndex + 1];
    }
    return computedIndex;
  }

  @Override

    @Nullable
    public static Path findRoot(Path topDirectory) {
        requireNonNull(topDirectory, "topDirectory");
        Path rootDirectory =
                ServiceLoader.load(RootLocator.class).iterator().next().findRoot(topDirectory);
        if (rootDirectory != null) {
            return getCanonicalPath(rootDirectory);
        }
        return null;
    }

    @Nonnull

   * prev}. {@code ENDPOINT} represents either the first or last entry in the entire map (as
   * appropriate).
   */
  private void setSucceeds(int prev, int next) {
    if (prev == ENDPOINT) {
      firstInInsertionOrder = next;
    } else {
      nextInInsertionOrder[prev] = next;
    }
    if (next == ENDPOINT) {
      lastInInsertionOrder = prev;

  }

  private Entry<K, V> getEntryNullReplaces() {
    Iterator<Entry<K, V>> entries = getSampleElements().iterator();
    for (int i = 0; i < getNullLocation(); i++) {
      entries.next();
    }
    return entries.next();
  }

  /**
   * @return an array of the proper size with {@code null} as the value of the middle element.
   */
  protected Entry<K, V>[] createArrayWithNullValue() {

    }

    @Override
    public int encode(byte[] dst, int dstIndex) {
        int start = dstIndex;

        // Write context header
        SMBUtil.writeInt4(0, dst, dstIndex); // Next (offset to next context, 0 for last)
        dstIndex += 4;

        SMBUtil.writeInt2(16, dst, dstIndex); // NameOffset (from start of context)
        dstIndex += 2;

		{
			name:   "root",
			prefix: "object.ext",
			want:   "",
		},
		{
			name:   "rootdotslash",
			prefix: "./object.ext",
			want:   "",
		},
		{
			name:   "rootslash",
			prefix: "/",
			want:   "",
		},
		{
			name:   "folder",
			prefix: "prefix/",
			want:   "prefix/",
		},
		{
			name:   "folderobj",
			prefix: "prefix/obj.ext",
			want:   "prefix/",
		},
		{

      public boolean hasNext() {
        return valueItr.hasNext() || valueCollectionItr.hasNext();
      }

      @Override
      public V next() {
        if (!valueItr.hasNext()) {
          valueItr = valueCollectionItr.next().iterator();
        }
        return valueItr.next();
      }
    };
  }

  private static final class Values<K, V> extends ImmutableCollection<V> {