-To join a mailing list discussing this JSR, go to: - http://altair.cs.oswego.edu/mailman/listinfo/concurrency-interest . - +To chack for updates to this draft, access a preliminary prototype +release of main functionality, or join a mailing list discussing this +JSR, go to: +http://altair.cs.oswego.edu/mailman/listinfo/concurrency-interest +.
- - Disclaimer - This prototype is experimental code developed as part of - JCP JSR166 and made available to the developer community for use - as-is. It is not a supported product. Use it at your own risk. The - specification, language and implementation are subject to change as a - result of your feedback. Because these features have not yet been - approved for addition to the Java language, there is no schedule for - their inclusion in a product. - - -
JSR166 introduces package java.util.concurrent containing -utility classes commonly useful in concurrent programming. Like -package java.util, it includes a few small standardized extensible -frameworks, as well as some classes that provide useful functionality -and are otherwise tedious or difficult to implement. JSR-166 focusses -on breadth, prviding critical functionality useful across a wide range -of concurrent programming styles and applications, ranging from -low-level atomic operations, to customizable locks and synchronization -aids, to various concurrent data structures, to thread pools. -Descriptions of the main components may be found in the associated -package documentation. -
JSR166 also includes a few changes and additions in packages -outside of java.util.concurrent. Here are brief descriptions. + Disclaimer. The prototype implementation is experimental +code developed as part of JCP JSR-166 is made available to the +developer community for use as-is. It is not a supported product. Use +it at your own risk. The specification, language and implementation +are subject to change as a result of your feedback. Because these +features have not yet been approved for addition to the Java language, +there is no schedule for their inclusion in a product. + +
Disclaimer. This draft specification was produced +using JDK1.4 tools plus some preprocessing. The resulting javadocs do +not yet correctly render other planned JDK1.5 constructs on which +JSR-166 relies, most notably the use of generic types. We are +releasing this version now (before the availability of JDK1.5-based +tools) because, even though they are misformatted and sometimes lack +proper cross-referencing, they otherwise convey the intended +specifications. + +
JSR-166 introduces package java.util.concurrent +containing utility classes commonly useful in concurrent +programming. Like package java.util, it includes a few small +standardized extensible frameworks, as well as some classes that +provide useful functionality and are otherwise tedious or difficult to +implement. + +
JSR-166 focusses on breadth, providing critical functionality +useful across a wide range of concurrent programming styles and +applications, ranging from low-level atomic operations, to +customizable locks and synchronization aids, to various concurrent +data structures, to high-level execution agents including thread +pools. This diversity reflects the range of contexts in which +developers of concurrent programs have been found to require or desire +support not previously available in J2SE, which also keeping the +resulting package small; providing only that minimial support for +which it makes sense to standardize. + +
Descriptions and brief motivations for the main components may be +found in the associated package documentation. JSR-166 also includes +a few changes and additions in packages outside of +java.util.concurrent. Here are brief descriptions.