[jdk17u] RFR: 8274942: AssertionError at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:155)

[Guoxiong Li]

Hi all,

This pull request contains a backport of commit [2b02b6f5](https://github.com/openjdk/jdk/commit/2b02b6f513b062261195ca1edd059d16abb7bec6) from the openjdk/jdk repository. The code applies cleanly.

The commit being backported was authored by Guoxiong Li on 3 Nov 2021 and was reviewed by Vicente Romero.

Best Regards,
-- Guoxiong

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Commit messages:
 - Backport 2b02b6f513b062261195ca1edd059d16abb7bec6

Changes: https://git.openjdk.java.net/jdk17u/pull/242/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=242&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274942
  Stats: 63 lines in 2 files changed: 63 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/242.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/242/head:pull/242

PR: https://git.openjdk.java.net/jdk17u/pull/242