Why do memory leaks occur in Java? Reasons why static Map references remain even after GC runs, and how to investigate them

I have caused a memory leak in Java before.The cause was data that was temporarily used for game ranking aggregation.Once the aggregation process was finished, that data was no longer needed. However, ...

Java의 메모리 누수는 왜 발생하는가? GC가 돌아도 static Map의 참조가 남는 이유와 조사 방법

이전에 Java에서 메모리 누수를 일으킨 적이 있습니다.원인이 된 것은 게임 랭킹 집계에 일시적으로 사용하던 데이터였습니다.집계 처리가 끝나면 그 데이터도 불필요해집니다. 하지만 실제로는 메모리상에 계속 남아 있었습니다.어셈블러 등을 다루던 시절이라면 메모리 확보와 해제를 상당히 의식합니다. 반면 Java에는 GC(Garbage Collection)가 있습 ...
blog.csdn

深入理解 Java ConcurrentHashMap：原理、源码与实战

本内容遵循CC 4.0 BY-SA版权协议 ConcurrentHashMap 是 Java 并发编程中最重要的数据结构之一，它提供了线程安全的哈希表实现，在高并发场景下性能远超 Hashtable 和 Collections.synchronizedMap()。自 JDK 1.5 ...
GitHub

java.util.concurrent.ConcurrentHashMap

3:03:26 WARN]: [me.caseload.knockbacksync.shaded.com.github.retrooper.packetevents.PacketEventsAPI] PacketEvents caught an unhandled exception while calling your ...
bilibili

Java题 ConcurrentHashMap扩容的流程？

【Java面试速成】耗时一周搞定Java面试1000问，比背八股文有用多了！（马士兵-码士集团） 【Java八股文2025教程】耗时2个月，这绝对是全B站最用心的Java面试题解析（7天搞定java面试高频知识点 ...
bilibili

【Java面试八股文（多线程与高并发）】AQS、synchronized、线程、CAS、线程池、锁、ConcurrentHashMap、ThreadLocal！

02.AQS唤醒节点时，为何从后往前找？ 2026Java短期面试突击最快的方式：没有之一（邪修版）包括场景题/八股文/Java基础/并发 ...
blog.csdn

深入 ConcurrentHashMap：Java 多线程面试的 “锁优化” 考点

ConcurrentHashMap 是 Java 并发编程中的核心容器，其锁优化机制是多线程面试的高频考点。它的设计演进充分体现了 Java 对并发性能的持续优化，从 JDK 1.7 到 JDK 1.8 经历了重大架构调整，我们来深入 ...
GitHub

Frequent java.lang.IllegalStateException: Recursive update

The last few weeks, me and my colleagues have started to see very frequent (sometimes several times a minute) exceptions from Cursive while typing into various .clj files. It seems to have started ...