Java 版本 (1.3/1.4/1.5/1.6/...) 的受欢迎程度有哪些衡量标准？
在回避 Java 多年之后，我重新开始使用它，发现它更有用，这要归功于该语言 1.5 和 1.6 版本中引入的功能。但这些功能实际使用了多少呢？我对 Java 项目和程序员的印象是，大多数人由于多种原因而停留在 1.4，但我可能是错的。有没有流行度衡量标准，实际使用的是哪些 Java 版本？例如，有人做过开源项目的最新统计吗？通过分析版本控制系统，您甚至可以分析新的 Java 功能的采用速度。
After avoiding Java for years, I got back to it and found it more useful, thanks to features introduced in version 1.5 and 1.6 of the language. But how much are these features actually used? My impression of Java projects and programmers is, that most are stuck at 1.4 for several reasons, but I might be wrong. Are there any popularity measures, which Java versions are actually used? For instance has anyone done up to date statistics of open source projects? Analyzing the revision control systems, you could even analyze how fast new Java features got adopted.
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可能有一些统计数据，但从个人经验来看，我想说 1.4 项目所剩无几。 1.5(6) 已被大量采用，并且泛型、自动装箱等的使用也被大量采用。尤其是泛型。
There probably are some stats around, but from personal experience I'd say that there are very few 1.4 projects left. 1.5(6) has been heavily adopted and the usage of Generics, AutoBoxing, etc heavily adopted. Most especially generics.
1.6.0_xx 版本上报告的错误数量表明 java 1.6（JDK 和 JRE）有更多的用户。 - 比旧版本。 Oracle 和其他 JVM 开发人员可能有准确的数字。
Number of bugs reported on 1.6.0_xx releases indicates there are many more users for java 1.6 (JDK and JRE). - than older versions. Oracle and other JVM developer may have accurate numbers..