private final AtomicReference<Throwable> threadFailure = new AtomicReference<>(null);

  /**
   * Records an exception so that it can be rethrown later in the test harness thread, triggering a
   * test case failure. Only the first failure is recorded; subsequent calls to this method from
   * within the same test have no effect.
   */
  public void threadRecordFailure(Throwable t) {

## Changelog since v1.26.1

## Changes by Kind

### API Change

In-tree cloud provider bug fixes and improvements included:
- Adding initial Zones support to the provider using vSphere Tags
- Improving the testing harness for the cloud provider by introducing vcsim for automated testing
- Fixing a bug that was preventing updates from 1.10 to 1.11

- In-tree GCE PD test cases no longer run in Kubernetes testing harness anymore (side effect of switching on CSI migration in 1.22). Please switch on the environment variable `ENABLE_STORAGE_GCE_PD_DRIVER` to `yes` if you need to run these tests. ([#109541](https://github.com/kubernetes/kubernetes/pull/109541), [@dim...