[jdk17u] RFR: 8271254: javac generates unreachable code when using empty semicolon statement

[Guoxiong Li]

Hi all,

Request to backport this change about unreachable code to jdk17u. The code applies cleanly.

The commit being backported was authored by Guoxiong Li on 14 Sep 2021 and was reviewed by Vicente Romero.

Best Regards,
-- Guoxiong

-------------

Commit messages:
 - Backport fe89dd3b0d47807c7dbfe24d17f6aca152fc8908

Changes: https://git.openjdk.java.net/jdk17u/pull/108/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=108&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8271254
  Stats: 101 lines in 2 files changed: 92 ins; 0 del; 9 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/108.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/108/head:pull/108

PR: https://git.openjdk.java.net/jdk17u/pull/108