.jinit/.jpackage hangs

[gdkrmr]

On Manjaro calling .jinit() or .jpackage() make the R session hang with 100% CPU usage.

$ java -version
openjdk version "1.8.0_292"
OpenJDK Runtime Environment (build 1.8.0_292-b10)
OpenJDK 64-Bit Server VM (build 25.292-b10, mixed mode)

$ R CMD javareconf
Java interpreter : /usr/bin/java
Java version     : 1.8.0_292
Java home path   : /usr/lib/jvm/java-8-openjdk/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/linux
detected JNI linker flags : -L$(JAVA_HOME)/lib/amd64/server -ljvm
gcc -I"/home/gkraemer/progs/R/R-4.1.0/include" -DNDEBUG -I/usr/lib/jvm/java-8-openjdk/jre/../include -I/usr/lib/jvm/java-8-openjdk/jre/../include/linux  -I/usr/local/include   -fpic  -g -O2 -flto -c conftest.c -o conftest.o
gcc -shared -g -O2 -flto -fpic -L/home/gkraemer/progs/R/R-4.1.0/lib -L/usr/local/lib64 -o conftest.so conftest.o -L/usr/lib/jvm/java-8-openjdk/jre/lib/amd64/server -ljvm -L/home/gkraemer/progs/R/R-4.1.0/lib -lR


JAVA_HOME        : /usr/lib/jvm/java-8-openjdk/jre
Java library path: $(JAVA_HOME)/lib/amd64/server
JNI cpp flags    : -I$(JAVA_HOME)/../include -I$(JAVA_HOME)/../include/linux
JNI linker flags : -L$(JAVA_HOME)/lib/amd64/server -ljvm
Updating Java configuration in /home/gkraemer/progs/R/R-4.1.0
Done.

I am coming from here: ifellows/ROSM#13

[gdkrmr]

Solved it: I had JDK/JRE 1.8 installed and it had to be uninstalled, I also had to reinstall the current version (1.16). I didn't think this would be a problem, because the CRAN page[1] names version 1.2/1.4 as lower bounds. Maybe the lower bounds should be updated?

[1] https://cran.r-project.org/package=rJava

[s-u]

The requirements are true, apparently there was as issue in your installation, but given the lack of details in this report it is hard to give you any advice other that rJava definitely works with Java 1.8 as we have it deployed like that on many machines.