MacOS 无法识别 MacOS 10.14.6 上更新的 Java

Question

在通过 Homebrew 将 R 更新到 3.6.1 后重新安装包的过程中，我遇到了这个问题（运行在 RStudio 1.2.5019 中）：

install.packages( "rJava" )
...
...
...
configure: error: One or more Java configuration variables are not set.
Make sure R is configured with full Java support (including JDK). Run
R CMD javareconf
as root to add Java support to R.

If you don't have root privileges, run
R CMD javareconf -e
to set all Java-related variables and then install rJava.

ERROR: configuration failed for package ‘rJava’
* removing ‘/usr/local/lib/R/3.6/site-library/rJava’

运行

bash-3.2$ sudo R CMD javareconf

产量

Java interpreter : /usr/bin/java
Java version     : 1.8.0_25
Java home path   : /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre
Java compiler    : /usr/bin/javac
Java headers gen.: /usr/bin/javah
Java archive tool: /usr/bin/jar

trying to compile and link a JNI program 
detected JNI cpp flags    : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/darwin
detected JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm
clang -I"/usr/local/Cellar/r/3.6.1_1/lib/R/include" -DNDEBUG -I/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre/../include -I/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre/../include/darwin  -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/include  -fPIC  -g -O2  -c conftest.c -o conftest.o
clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/Cellar/r/3.6.1_1/lib/R/lib -L/usr/local/opt/gettext/lib -L/usr/local/opt/readline/lib -L/usr/local/lib -o conftest.so conftest.o -L/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre/lib/server -ljvm -L/usr/local/Cellar/r/3.6.1_1/lib/R/lib -lR -lintl -Wl,-framework -Wl,CoreFoundation


JAVA_HOME        : /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre
Java library path: $(JAVA_HOME)/lib/server
JNI cpp flags    : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/darwin
JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm
Updating Java configuration in /usr/local/Cellar/r/3.6.1_1/lib/R
Done.

Re 运行ning install.packages( "rJava" ) 产生略有不同的错误消息：


*** JDK is incomplete! Please make sure you have a complete JDK. JRE is *not* sufficient.
configure: error: ./configure failed for jri
ERROR: configuration failed for package ‘rJava’
* removing ‘/usr/local/lib/R/3.6/site-library/rJava’
Warning in install.packages :
  installation of package ‘rJava’ had non-zero exit status

但我注意到 R CMD javareconf 的输出列出了一个旧的 Java 版本：1.8.0_25。运行 java -version 确认：

java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)

运行 /usr/libexec/java_home -V 确认仅安装了 1.8.0_25（即使已经下载并运行最新 Java 版本的安装程序） :

Matching Java Virtual Machines (1):
    1.8.0_25, x86_64:   "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home

/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home

查看 Java Control Panel 表明 1.8.0_231-b11 应该已安装。

我已经尝试卸载 Java 并重新安装 Java 但没有效果。

为什么会出现差异？我如何让他们 OS 识别最新版本？

我是运行宁 MacOS Mojave 10.14.6

谢谢，

Answer 1

好的，新手错误。我正在安装 JRE 而不是 JDK。从 Oracle 下载 JDK 并安装解决了 java 版本问题。

MacOS 无法识别 MacOS 10.14.6 上更新的 Java

MacOS does not recognize updated Java on MacOS 10.14.6

java

macos-mojave