internal symbols in the standard library (including the runtime) that
are not marked with `//go:linkname` on their definitions.
Similarly, the linker disallows references to such symbols from assembly
code.
For backward compatibility, existing usages of `//go:linkname` found in
a large open-source code corpus remain supported.
Any new references to standard library internal symbols will be disallowed.

import javax.annotation.Nullable;

public abstract class Cast {

    /**
     * Casts the given object to the given type, providing a better error message than the default.
     *
     * The standard {@link Class#cast(Object)} method produces unsatisfactory error messages on some platforms
     * when it fails. All this method does is provide a better, consistent, error message.
     *

		klog.Warningf("Failed preparing watchlist options for examples, falling back to the standard LIST semantics, err = %v", watchListOptionsErr)
	} else if hasWatchListOptionsPrepared {
		result, err := c.watchList(ctx, watchListOptions)
		if err == nil {

	Uncaptured echo.Instances
	// Sidecar echo services with sidecar
	Sidecar echo.Instances

	// All echo services
	All echo.Instances
}

// TestMain defines the entrypoint for pilot tests using a standard Istio installation.
// If a test requires a custom install it should go into its own package, otherwise it should go
// here to reuse a single install across tests.
func TestMain(m *testing.M) {
	// nolint: staticcheck

	}

	return topics
}

func normalize(input string) string {
	return strings.Replace(input, "/", "-", -1)
}

// Run starts up the ControlZ listeners.
//
// ControlZ uses the set of standard core topics.
func Run(o *Options, customTopics []fw.Topic) (*Server, error) {
	topicMutex.Lock()
	allTopics = append(allTopics, coreTopics...)
	allTopics = append(allTopics, customTopics...)
	topicMutex.Unlock()

		} else if cp.Match.Proxy != nil && cp.Match.Proxy.ProxyVersion != "" {
			// Attempt to convert regex to a simple prefix match for the common case of matching
			// a standard Istio version. This field should likely be replaced with semver, but for now
			// we can workaround the performance impact of regex
			if prefix, f := wellKnownVersions[cp.Match.Proxy.ProxyVersion]; f {