- K8s.io/component-base/logs: usage of the pflag values in a normal Go flag set led to panics when printing the help message ([#114680](https://github.com/kubernetes/kubernetes/pull/114680), [@pohly](https://github.com/pohly)) [SIG Instrumentation]

- Fix a bug that `--disabled-metrics` doesn't function well. (#105793, @Huang-Wei) [SIG API Machinery, Cluster Lifecycle and Instrumentation]
- Fix a panic in kubectl when creating secrets with an improper output type (#106356, @lauchokyip) [SIG CLI]
- Fix concurrent map access causing panics when logging timed-out API calls. (#106112, @marseel) [SIG API Machinery]

- K8s.io/apimachinery/pkg/util/runtime: Added support for new calls to handle panics and errors in the context where they occur. `PanicHandlers` and `ErrorHandlers` now must accept a context parameter for that. Log output is structured instead of unstructured. ([#121970](https://github.com/kubernetes/kubernetes/pull/121970), [@po...

* Add aggregator_unavailable_apiservice_{count,gauge} metrics in the kube-aggregator. ([#71380](https://github.com/kubernetes/kubernetes/pull/71380), [@sttts](https://github.com/sttts))
* Fixes apiserver nil pointer panics when requesting v2beta1 autoscaling object metrics ([#71744](https://github.com/kubernetes/kubernetes/pull/71744), [@yue9944882](https://github.com/yue9944882))

		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewDRWMutex(ds, "test")
	mu.Unlock(t.Context())
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic2(t *testing.T) {
	mu := NewDRWMutex(ds, "test-unlock-panic-2")
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}

</QueueConfiguration>`)
	queue3 := &Queue{}
	if err := xml.Unmarshal(data, queue3); err != nil {
		panic(err)
	}

	targetList1 := NewTargetList(t.Context())

	targetList2 := NewTargetList(t.Context())
	if err := targetList2.Add(&ExampleTarget{TargetID{"1", "webhook"}, false, false}); err != nil {
		panic(err)
	}

	testCases := []struct {
		queue      *Queue
		region     string
		targetList *TargetList

	sendLog(ctx, entry)
}

// ErrCritical is the value panic'd whenever CriticalIf is called.
var ErrCritical struct{}

// CriticalIf logs the provided error on the console. It fails the
// current go-routine by causing a `panic(ErrCritical)`.
func CriticalIf(ctx context.Context, err error, errKind ...any) {
	if err != nil {
		LogIf(ctx, "", err, errKind...)
		panic(ErrCritical)
	}
}

  - `io.k8s.apimachinery.pkg.apis.meta.v1.StatusDetails_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.Status_v2` ([#110179](https://github.com/kubernetes/kubernetes/pull/110179), [@Jefftree](https://github.com/Jefftree))
- Panics while calling validating admission webhook are caught and honor the fail open or fail closed setting. ([#108746](https://github.com/kubernetes/kubernetes/pull/108746), [@deads2k](https://github.com/deads2k)) [SIG API Machinery]

    List<?> exp = copyToList(expected);
    List<?> act = copyToList(actual);
    String actString = act.toString();

    // Of course we could take pains to give the complete description of the
    // problem on any failure.

    // Yeah it's n^2.
    for (Object object : exp) {
      if (!act.remove(object)) {
        fail(

}

func (w *Walker) emitf(format string, args ...any) {
	f := strings.Join(w.scope, ", ") + ", " + fmt.Sprintf(format, args...)
	if strings.Contains(f, "\n") {
		panic("feature contains newlines: " + f)
	}

	if _, dup := w.features[f]; dup {
		panic("duplicate feature inserted: " + f)
	}
	w.features[f] = true

	if verbose {
		log.Printf("feature: %s", f)
	}
}