How change CurrentJDK symbolic link in MacOS

Question

Currently in my Mac I have these JAVA versions:

---

MyMac$ cd /Library/Java/JavaVirtualMachines

$ ls -la

total 0

drwxr-xr-x 4 root wheel

Answer 1

Steps that worked on macOS Catalina 10.15.2 and RStudio 1.2.5036

Install Java 11.0.1 from here (requires free account):

https://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase11-5116896.html

Run javareconf

You probably need to run the command below, but RStudio seems not acknowledge the settings:

sudo R CMD javareconf 

Remove (if installed) and reinstall rJava from source

remove.packages("rJava") 
install.packages("rJava", type="source", repos="http://cran.rstudio.com")

Installing rJava from source seems to run a different configuration setup that will look for Java and it will display "checking Java support in R" as part of the output that seems accepted by RStudio.

Change ~/.Rprofile

This change to .Rprofile may also be necessary:

options(java.home="/Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home")
Sys.setenv(DYLD_FALLBACK_LIBRARY_PATH="/Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home/lib/server/")