tree c6756920575d9030ddbdad3369355218a9832c93
parent 7f749e927f61a84ef3a8f361ce601db9d2b81fc4
author Benjamin Peterson <benjamin@engflow.com> 1709857172 -0800
committer Florian Weikert <fwe@google.com> 1709901224 +0100

Fix CommandLine class initialization deadlock.

https://github.com/bazelbuild/bazel/issues/21566#issuecomment-1983242695 shows a deadlock when initializing static variable `CommandLine.EMPTY` and another thread is initializing `CommandLine`'s subclass `AbstractCommandLine` because `CommandLine.EMPTY` is an instance of `AbstractCommandLine`.

Fixes https://github.com/bazelbuild/bazel/issues/21566.

Closes #21608.

PiperOrigin-RevId: 613736999
Change-Id: Iadb738b0a89f34cee9a03bc92b385fa7ab58c98f