steps
.sbtopts file:
-J--enable-preview
-J--add-modules jdk.incubator.concurrent
problem
$ sbt
Error: --add-modules requires modules to be specified
copying runtime jar...
mkdir: cannot create directory ‘’: No such file or directory
Error: --add-modules requires modules to be specified
Error: --add-modules requires modules to be specified
expectation
Succesful startup
notes
Also tried:
"-J--add-modules jdk.incubator.concurrent"
-J"--add-modules jdk.incubator.concurrent"