Windows - To get the JDK for windows is a tricky one. You have to download IBM Development Package for Eclipse. This will give you a eclipse Europa (3.3) version, along with J9 JDK version 1.6.
Previously J9 was the recommended VM for running the harmony class files, as their own version of JVM was incomplete. Have a look at this wiki page.
In the end of November, 2006, the language support provided by these virtual machine was still incomplete, and the build instructions recommended to use IBM's proprietary J9 instead to run the class library test suite. However, this is not necessary anymore (as of July 2007). The DRLVM virtual machine is currently (as of July 2006) under heavy development, so a fast improvement of its features can be expected
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正如麦克道尔在评论中所建议的那样。您可以从此链接获取 J9 JDK： https://developer.ibm.com/javasdk/downloads /。具体来说..
Linux - https:// www.ibm.com/developerworks/java/jdk/linux/download.html
Windows - 获取适用于 Windows 的 JDK 是一件棘手的事情。您必须下载 IBM Development Package for Eclipse。这将为您提供 eclipse Europa (3.3) 版本，以及 J9 JDK 版本 1.6。
以前，J9 是推荐的 VM 来运行 Harmony 类文件，因为他们自己的 JVM 版本不完整。看看这个维基页面。
http://en.wikipedia.org/wiki/Apache_Harmony
As McDowell suggested in his comment. You can get the J9 JDK from this link: https://developer.ibm.com/javasdk/downloads/. Specifically..
Linux - https://www.ibm.com/developerworks/java/jdk/linux/download.html
Windows - To get the JDK for windows is a tricky one. You have to download IBM Development Package for Eclipse. This will give you a eclipse Europa (3.3) version, along with J9 JDK version 1.6.
Previously J9 was the recommended VM for running the harmony class files, as their own version of JVM was incomplete. Have a look at this wiki page.
http://en.wikipedia.org/wiki/Apache_Harmony
1：http://wiki.eclipse.org/J9？ - 试试这个
1: http://wiki.eclipse.org/J9? - try this
还可以从以下位置获取官方 J9 docker 映像： https://hub.docker.com/_/ibmjava/
Official J9 docker images are also available from: https://hub.docker.com/_/ibmjava/