Close Encounters of the JMM Kind
summary
Aleksey Shipilev examines common misconceptions about the Java Memory Model (JMM), such as the power of memory barriers, reordering, and synchronization failures, using concrete examples from his published paper. The talk targets listeners who already know the basics of JMM (e.g., from "Pragmatic JMM") and presents corrected, detailed examples that debunk unsupported beliefs in the specification.
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chapters (8)
- 0:00Introduction to JMM
- 12:23Cookbook issues
- 20:31Happens-before and consistency
- 32:00Safe publication
- 41:16Race condition dangers
- 44:50Safe races and files
- 48:22JMM rules
- 57:44Q&A
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