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From Doug Lea’s abstract:
“Creating components based on concurrent and parallel algorithms and data structures often requires more attention to “engineering” issues not seen with most other libraries. Components created in the “obvious” way sometimes turn out to be wrong, to perform poorly, or are unusable in most applications, because the abstractions in which they are expressed are leaky, imprecise, or incorrectly specified.
While many of these issues are encountered in other aspects of concurrent programming, the impact is accentuated when they continue to leak through to APIs provided by library components. This presentation surveys some examples and lessons learned from the design, implementation, and applications of the java.util.concurrent library, including those surrounding memory models, resource management and garbage collection, thread management, optimization, and code generation.”