result[0] = elemCount;
      if (expectedCount == elemCount) {
        if (newCount == 0) {
          return deleteMe();
        }
        this.totalCount += newCount - elemCount;
        this.elemCount = newCount;
      }
      return this;
    }

    private @Nullable AvlNode<E> deleteMe() {
      int oldElemCount = this.elemCount;
      this.elemCount = 0;
      successor(pred(), succ());

        } else {
          memory.reset();
        }
        out = memory;
        if (file != null) {
          File deleteMe = file;
          file = null;
          if (!deleteMe.delete()) {
            throw new IOException("Could not delete: " + deleteMe);
          }
        }
      }
    }

    synchronized void write(int b) throws IOException {
      update(1);

    }

    /**
     * Deletes all documents associated with the specified session ID from the given index.
     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param index the index name to delete documents from
     * @param sessionId the session ID to delete documents for
     * @return the number of documents that were deleted
     */

        // Log the result
        if (sizeBeforeDeletion > 0) {
            logger.info("Successfully deleted {} crawling info log(s) using bulk delete", sizeBeforeDeletion);
        } else {
            logger.info("No crawling info logs to delete (may have been deleted by previous test)");
        }
    }

    }
    return false
  }

  /**
   * Closes the cache and deletes all of its stored values. This will delete all files in the cache
   * directory including files that weren't created by the cache.
   */
  @Throws(IOException::class)
  fun delete() {
    close()
    fileSystem.deleteContents(directory)
  }

  /**
   * Deletes all stored values from the cache. In-flight edits will complete normally but their

        Path dir = fs.getPath("dir");
        assertEquals(6, MoreFiles.listFiles(dir).size());

        method.delete(dir);
        method.assertDeleteSucceeded(dir);

        assertEquals(
            "contents of /dontdelete deleted by delete method " + method,
            3,
            MoreFiles.listFiles(fs.getPath("/dontdelete")).size());
      }
    }
  }

        // For each of 4 indices: delete old + delete backup = 8 deletes
        assertEquals(8, testClient.deletedIndices.size());
        // Verify original index names appear in deleted list (old index deletion at step 3)
        boolean foundOriginalDelete = false;
        for (final String deleted : testClient.deletedIndices) {
            if (!deleted.contains(".backup.") && !deleted.contains(".rebuild.")) {

            reload(updater);
        }
    }

    /**
     * Deletes a character mapping item from the dictionary file.
     *
     * @param item the character mapping item to delete
     */
    @Override
    public synchronized void delete(final CharMappingItem item) {
        final CharMappingItem mappingItem = item;

        Path dir = fs.getPath("dir");
        assertEquals(6, MoreFiles.listFiles(dir).size());

        method.delete(dir);
        method.assertDeleteSucceeded(dir);

        assertEquals(
            "contents of /dontdelete deleted by delete method " + method,
            3,
            MoreFiles.listFiles(fs.getPath("/dontdelete")).size());
      }
    }
  }

        // Test that Files.deleteIfExists deletes existing file atomically
        Path tempFile = Files.createTempFile("toctou_cmd_test", ".tmp");
        try {
            assertTrue(Files.exists(tempFile));

            boolean deleted = Files.deleteIfExists(tempFile);

            assertTrue(deleted);
            assertFalse(Files.exists(tempFile));
        } finally {