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Technical2026-08-12

JAVA Memory Model

AI-Expanded — inferred from the question title, not from the original candidate report

Explain the role of the Java Memory Model (JMM) in ensuring thread safety, specifically focusing on how the `volatile` keyword and the `happens-before` relationship prevent instruction reordering and visibility issues. Describe a scenario where two threads access a shared variable without proper synchronization and explain how the JMM guarantees or fails to guarantee that one thread sees the updates made by the other.

Context & Summary

Discussion on current project and architecture, followed by DSA questions and Java advanced concepts.

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