Lazy Diary @ Hatena Blog

PowerShell / Java / miscellaneous things about software development, Tips & Gochas. CC BY-SA 4.0/Apache License 2.0

Software Development

What can you do with account lockout and its unlock

Purpose of account lockout These are some purpose for account lockout, such as: Detect login attempts 1 Example: Logging 2 Slow down login attempts Example: Duration-based lockout, scrypt, Argon2 Interrupt login attempts Example: Requires …

A List of What Cannot JCache do

JCache cannot save the order of insertion. You should use LinkedHashMap for that purposes. JCache cannot update whole entries in a cache atomically. You should use AtomicReference or some locking mechanisms for that purpose. (Ofcourse you …

The meanings of word "cache" in software engineering

I think the word "cache" has so many different meanings in different contexts like below. Note: In this list, the word "invalidated" means the source of cached value might be changed. Something like the cache in web browsers. The cache sto…

情報システムの受託開発中に発見されたバグの情報の行方

情報システムの受託開発で、OSSに依存するアプリを開発したとしよう。さらに、そのアプリの開発中に、当該OSSのバグを見つけたとしよう。この場合、条件によっては、発見者はパッチの投稿も、バグの報告もできず、そのバグの情報は永遠にお蔵入りになるので…

ISO/IEC 12207 (JIS X 0160:2012) ソフトウェア構成管理プロセスのうちバージョン管理システム、GitHub/GitLab/etc、git-flow/GitHub Flowでカバーできる内容

(In English: What can you do for ISO/IEC 12207 (JIS X 0160:2012) Software Configuration Management Process with VCSs, GitHub/GitLab/etc, and git-flow/GitHub Flow) ISO/IEC 12207 (JIS X 0160:2012)では、ソフトウェア開発におけるソフトウェア構…