rJava load error in RStudio/R after “upgrading” to OSX Yosemite

Question

I recently \"upgraded\" from OSX Mountain Lion to Yosemite and from R 3.1.3 to 3.2. Immediately after the upgrade, when I opened R or RStudio I got a pop-up message saying t

Answer 1

I noticed that 'rJava' is pretty strict about JDK version while loading in Rstudio.
In my case (Mac OS. 10.14.6 - Mojave) I had installed jdk-13 which was tested against jdk-11.
I have linked my JDK version to a non-existent directory that was assumed to be valid by Rstudio (JDK 11):

sudo ln -sf /Library/Java/JavaVirtualMachines/jdk-13.jdk/ /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk

and suprisingly it works like a charm...
BTW., there was no problem to run 'rJava' following the previous instructions in native R.