Add hashmap-vs-concurrenthashmap module: JDK 25 sizeCtl/treeify internals, forced and measured lost updates

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b7rnC7jppGGdHGESvy
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2026-10-28 18:07:37 +00:00
co-authored by Claude Sonnet 5.5
parent 715036b640
commit f80e1079a8
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@@ -12,6 +12,7 @@ One module per article. This repository currently holds:
| [`lld-parking-lot`](lld-parking-lot/) | Low-Level Design Interview in Java: Parking Lot System, Step by Step | published |
| [`hibernate-jpa`](hibernate-jpa/) | Top 40 Hibernate and JPA Interview Questions (2026) with Runnable Answers | this commit |
| [`junit-mockito`](junit-mockito/) | Top 30 JUnit 6 and Mockito Interview Questions (2026) | this commit |
| [`hashmap-vs-concurrenthashmap`](hashmap-vs-concurrenthashmap/) | HashMap vs ConcurrentHashMap in Java: Internals, Thread Safety and Interview Answers | this commit |
## `collections` module