Change Java version in R studio

Question

R studio is giving me an error when trying to open an xlsx document saying WARNING: Initial Java 12 release has broken JNI support and does NOT work. Use stable Java 11 (or watch for 12u if available). WARNING: Initial Java 12 release has broken JNI support and does NOT work. Use stable Java 11 (or watch for 12u if available). Does anyone know how I can resolve this issue and change to Java 11?

Answer 1

Had the same issue, it turns out that I just needed to set proper JAVA_HOME as indicated in the comments.

Sys.setenv(JAVA_HOME="path to your java dir") #'C:\\Program Files\\Java\\...
library(rJava)