This Annex to the Java SE 13 Specification will contain drafts of the Java SE 13 Editions of The Java Language Specification (JLS) and The Java Virtual Machine Specification (JVMS).
The drafts will include corrections and clarifications made to the JLS and JVMS since the Java SE 12 Edition, that is, since the Final Release of JSR 386.
The Java SE 13 Platform includes the following preview feature whose specification is logically part of the Java SE 13 Edition of the JLS, but physically distributed in a separate document:
Informative background to the specific issues which will be addressed by the changes in these drafts is available in the JDK Bug System under the specification component.