在Mac上奇怪的软链接ln命令问题

我想创建空目录/Library/Java/JavaVirtualMachines/jdk1.8.0_5.jdk/Contents/Home/，它指向真实目录/Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/，因为一些代码依赖于这个特定版本的JDK（1.8.0_5，但我只有1.8.0_74）但是ln命令失败并出现以下错误，任何想法有什么不对？谢谢。

顺便说一句，我使用的是Mac OSX。

ls -l /Library/Java/JavaVirtualMachines/
total 0
drwxr-xr-x  3 root  root  102 Jan 20 16:32 Contents
drwxr-xr-x  3 root  root  102 Jan 25 16:16 jdk1.8.0_05.jdk
drwxr-xr-x  3 root  root  102 Jan 25 16:15 jdk1.8.0_25.jdk
drwxr-xr-x  3 root  root  102 Jan 25 16:15 jdk1.8.0_40.jdk
drwxr-xr-x  3 root  root  102 Jan 20 16:32 jdk1.8.0_72.jdk
drwxr-xr-x  3 root  root  102 Feb  5 15:25 jdk1.8.0_74.jdk
ln -s /Library/Java/JavaVirtualMachines/jdk1.8.0_5.jdk/Contents/Home/ /Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home/
ln: /Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home//Home: File exists

来自Schlachter的更新，尝试过的解决方案，但遇到了新问题，

ls /Library/Java/JavaVirtualMachines
Contents        jdk1.7.0_51.jdk jdk1.8.0_25.jdk jdk1.8.0_72.jdk jdk1.8.0_77.jdk
jdk1.7.0_21.jdk jdk1.8.0_05.jdk jdk1.8.0_40.jdk jdk1.8.0_74.jdk

ln -s /Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home /Library/Java/JavaVirtualMachines/jdk1.8.0_5.jdk/Contents/
ln: /Library/Java/JavaVirtualMachines/jdk1.8.0_5.jdk/Contents/: No such file or directory

只要jdk1.8.0_5.jdk/Contents/Home不存在，您就可以使用：

ln -s /Library/Java/JavaVirtualMachines/jdk1.8.0_74.jdk/Contents/Home /Library/Java/JavaVirtualMachines/jdk1.8.0_5.jdk/Contents/

尾部斜杠Contents/将把Home快捷方式放在Contents文件夹中。Home文件夹没有斜杠，因为它是链接的目标。

编辑：上面需要存在链接的所有文件夹。mkdir可以为你创造/它们，例如mkdir -p /Library/Java/JavaVirtualMachines/jdk1.8.0_5.jdk/Contents