GitHub

JavaのConcurrentHashMapの動作確認

マルチスレッドでMap.put, ConcurrentHashMap.put, ConcurrentHashMap.putIfAbsentでmapに登録した場合の動作確認プロジェクト。 詳細 下記の表のインスタンスに対して、表に記載したメソッドで登録する。 登録対象インスタンス 登録メソッド 出力ワード HashMap put NORMAL ...
GitHub

WeightCalculatorWebFilter.java ConcurrentHashMap NullPointerException

2022-04-29 17:41:35.017 INFO 1 --- [trap-executor-0] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration at java.util.concurrent ...
note

この時世界からの世界線軸からノーマル世界線軸とハード世界線軸 ...

defenseLayers.put("INTRUSION_DETECTION", new DefenseLayer("侵入検知システム", 150)); defenseLayers.put("DREAM_BARRIER", new DefenseLayer("夢マシーン ...
InfoQ

Profiling java.util.concurrent locks

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. This article dives into the happens-before ...
InfoWorld

Cannot Assume Serializability for Java Map’s Nested Classes

A colleague of mine recently ran into an issue that I have not run into myself, but found to be interesting and, in my opinion, worth blogging about here. During some distributed Java development, my ...
TheServerSide

HashMap vs. Hashtable: Which map should you choose?

While the Hashtable was part of the initial Java release over two decades ago, the HashMap is the correct key-value store to use today. One key HashMap vs. Hashtable difference is the fact that the ...