if (file.isDirectory()) {
                traverseFileSystem(rootDir, file, handler);
            } else {
                final int pos = FileUtil.getCanonicalPath(rootDir).length();
                final String filePath = FileUtil.getCanonicalPath(file);
                final String resourcePath = filePath.substring(pos + 1).replace('\\', '/');
                final InputStream is = InputStreamUtil.create(file);
                try {

errors.invalid_design_jsp_file_name = Invalid JSP file.
errors.design_jsp_file_does_not_exist = The JSP file does not exist.
errors.design_file_name_is_not_found = The file name is not specified.
errors.failed_to_write_design_image_file = Failed to upload an image file.
errors.failed_to_update_jsp_file = Failed to update the JSP file.
errors.design_file_name_is_invalid = The file name is invalid.

errors.invalid_design_jsp_file_name = Invalid JSP file.
errors.design_jsp_file_does_not_exist = The JSP file does not exist.
errors.design_file_name_is_not_found = The file name is not specified.
errors.failed_to_write_design_image_file = Failed to upload an image file.
errors.failed_to_update_jsp_file = Failed to update the JSP file.
errors.design_file_name_is_invalid = The file name is invalid.

    String path = request.getPath();
    try {
      if (!path.startsWith("/") || path.contains("..")) throw new FileNotFoundException();

      File file = new File(root + path);
      return file.isDirectory()
          ? directoryToResponse(path, file)
          : fileToResponse(path, file);
    } catch (FileNotFoundException e) {
      return new MockResponse()
          .setStatus("HTTP/1.1 404")

                    fileString = interpolator.interpolate(fileString, "").replace("\\", "/");
                    File file = new File(fileString);
                    return file.exists();
                }

                // check if the file is missing, if it is then the profile will be active
                fileString = actFile.getMissing();

                if (fileString != null && !fileString.isEmpty()) {

/*
 * Copyright (C) 2014 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

   *
   * <p>If the returned map doesn't contain all requested {@code keys} then the entries it does
   * contain will be cached, but {@code getAll} will throw an exception. If the returned map
   * contains extra keys not present in {@code keys} then all returned entries will be cached, but
   * only the entries for {@code keys} will be returned from {@code getAll}.
   *

PROC_NAME=org.codelibs.fess.FessBoot
FESS_USER="${packaging.fess.user}"
FESS_GROUP="${packaging.fess.group}"
FESS_HOME="${packaging.fess.home.dir}"
PID_DIR="${packaging.fess.pid.dir}"

# Source the default env file
FESS_ENV_FILE="${packaging.env.file}"
if [ -f "$FESS_ENV_FILE" ]; then
    . "$FESS_ENV_FILE"
fi

exec="$FESS_HOME/bin/fess"
prog="fess"
pidfile="$PID_DIR/${prog}.pid"

export FESS_TEMP_PATH
export FESS_LOG_PATH

👈 🗜 🔢 🔘 🕳 🤙 "**🔁 🔑 👨‍💼**".

{* ../../docs_src/events/tutorial003.py hl[1,13] *}

**🔑 👨‍💼** 🐍 🕳 👈 👆 💪 ⚙️ `with` 📄, 🖼, `open()` 💪 ⚙️ 🔑 👨‍💼:

```Python
with open("file.txt") as file:
    file.read()
```

⏮️ ⏬ 🐍, 📤 **🔁 🔑 👨‍💼**. 👆 🔜 ⚙️ ⚫️ ⏮️ `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```

    // from File to File
    //
    /**
     * Copies from a file to a file.
     *
     * @param in the input file (must not be {@literal null})
     * @param out the output file (must not be {@literal null})
     * @return the number of bytes copied
     */
    public static int copy(final File in, final File out) {
        assertArgumentNotNull("in", in);