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ConcurrentLinkedQueue

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Sanyou's Java Diary
Sanyou's Java Diary
Apr 24, 2025 · Fundamentals

Master Java’s Concurrent Containers: Deep Dive into ConcurrentHashMap and Queues

This article provides an in‑depth exploration of Java’s concurrent collection classes, covering the design and implementation of ConcurrentHashMap, ConcurrentLinkedQueue, and the seven blocking queue variants, complete with code analysis, performance considerations, and practical usage scenarios for high‑throughput multithreaded applications.

BlockingQueueConcurrentHashMapConcurrentLinkedQueue
0 likes · 50 min read
Master Java’s Concurrent Containers: Deep Dive into ConcurrentHashMap and Queues
IT Services Circle
IT Services Circle
Mar 18, 2025 · Backend Development

Why Debugging a Simple ConcurrentLinkedQueue Triggers a NullPointerException in IntelliJ IDEA

The article recounts a puzzling case where a minimal Java program using ConcurrentLinkedQueue runs fine normally but throws a NullPointerException when debugged in IntelliJ IDEA, explains the underlying cause involving the IDE's automatic toString invocation, and shows how to disable the offending settings.

ConcurrentLinkedQueueIntelliJ IDEAJava
0 likes · 9 min read
Why Debugging a Simple ConcurrentLinkedQueue Triggers a NullPointerException in IntelliJ IDEA
Sohu Tech Products
Sohu Tech Products
Aug 5, 2020 · Backend Development

Debugging and Fixing the ConcurrentLinkedQueue Memory Leak Bug in JDK8

This article explains the root cause of a memory‑leak bug in JDK8's ConcurrentLinkedQueue, demonstrates how to reproduce and visualize the issue with custom CLQ implementations, analyzes the removal algorithm, and shares practical debugging tips including a notorious IDEA debug pitfall and its resolution.

ConcurrentLinkedQueueJDK8Java
0 likes · 14 min read
Debugging and Fixing the ConcurrentLinkedQueue Memory Leak Bug in JDK8
Sohu Tech Products
Sohu Tech Products
Aug 5, 2020 · Backend Development

Analyzing a JDK ConcurrentLinkedQueue Memory Leak Bug in Jetty's QueuedThreadPool

This article examines a JDK bug causing memory leaks in Jetty's QueuedThreadPool due to improper removal in ConcurrentLinkedQueue, demonstrates the issue with a long‑running demo, analyzes heap growth using jconsole, VisualVM and jmc, and shows how newer JDK versions fix the problem.

ConcurrentLinkedQueueJDKJava
0 likes · 14 min read
Analyzing a JDK ConcurrentLinkedQueue Memory Leak Bug in Jetty's QueuedThreadPool