Ref. JEP 12 - Preview Language and VM Features
david.holmes at oracle.com
Wed Mar 7 01:00:29 UTC 2018
The JEP defines a "launcher flag" --enable-preview but it is unclear
whether this is truly a launcher flag or a VM flag? Is the VM expected
to process the --enable-preview flag and accept it via the JNI
invocation API? Or does the launcher translate --enable-preview into a
suitable -XX VM flag?
If the above is considered too implementation oriented for the JEP then
at a minimum the JEP needs to clarify whether you can enable preview
features via the JNI invocation API.
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