如何在OSX上配置rJava以选择正确的JVM - .jinit（）失败

问题描述

我通过调用install.packages（rJava）来安装rJava - 没有遇到任何问题

I installed rJava by calling install.packages("rJava") -- no problems seen

但是当我打电话时：

library(rJava)
.jinit() 

我得到：

JavaVM: requested Java version ((null)) not available. Using Java at "" instead.
JavaVM: Failed to load JVM: /bundle/Libraries/libserver.dylib
JavaVM FATAL: Failed to load the jvm library.
Error in .jinit() : JNI_GetCreatedJavaVMs returned -1

我正在运行OSX：

Darwin MBP-2 14.5.0 Darwin Kernel Version 14.5.0: Tue Sep  1 21:23:09 PDT 2015; root:xnu-2782.50.1~1/RELEASE_X86_64 x86_64

我安装了以下Sun JDK：

I have the following Sun JDK's installed:

$ ls /Library/Java/JavaVirtualMachines/
jdk1.7.0_79.jdk jdk1.8.0_65.jdk

我的路径中有哪个Java：

Which Java is on my PATH:

$ which java
/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home//bin/Java

我还将JavaHome定义为：

I also have JavaHome defined as:

$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/

推荐答案

https://stackoverflow.com/a/36045290/4351357在MacOS Sierra版本10.12上为我帮助解决了这个问题。特别是，它在下面的命令1中提供了代码。

The answer at https://stackoverflow.com/a/36045290/4351357 helped resolve this issue for me on MacOS Sierra Version 10.12. In particular, it provided the code in command 1, below.

我使用的三个终端命令是：

The three Terminal commands I used are:

1. sudo ln -s $（/ usr / libexec / java_home）/jre/lib/server/libjvm.dylib / usr / local / lib


2. sudo R CMD javareconf


3. install.packages（ rJava，type ='source'）

1. sudo ln -s $(/usr/libexec/java_home)/jre/lib/server/libjvm.dylib /usr/local/lib
2. sudo R CMD javareconf
3. install.packages("rJava",type='source')

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