Java 1.5 有 fork join 框架的 backport-util 吗？
当并发 utils 被引入时，就有了 backport-util。对于 Java 1.6，有一个 fork/join 框架的实现 http://www .cs.washington.edu/homes/djg/teachingMaterials/grossmanSPAC_forkJoinFramework.html
有吗Java 1.5 的替代品？
when concurrency utils were introduced there was backport-util. For Java 1.6 there is an implementation for fork/join framework http://www.cs.washington.edu/homes/djg/teachingMaterials/grossmanSPAC_forkJoinFramework.html
Is there any alternative for Java 1.5?
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我不希望 JDK 7 中的新功能向后移植到 1.5，因为那是两个主要版本。有什么原因无法升级到 JDK 1.6 吗？
I would not expect any back ports of new functionality in JDK 7 to 1.5 since that's two major versions back. Is there a reason you can't upgrade to JDK 1.6?
在此页面http://g.oswego.edu/dl/concurrency-interest/ 您可以找到与 JSR-166 (java.util.concurrent) 相关的所有包。还有针对 JDK6 的向后移植包，对 1.5 的支持似乎不可用。
On this page http://g.oswego.edu/dl/concurrency-interest/ you can find all the packages related to the JSR-166 (java.util.concurrent). There are also backported packages for the JDK6, support for 1.5 doesn't seem to be available.