import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Static convenience methods that help a method or constructor check whether it was invoked
 * correctly (that is, whether its <i>preconditions</i> were met).
 *
 * <p>If the precondition is not met, the {@code Preconditions} method throws an unchecked exception

	// Note:
	// * the number of additional invocations is not guaranteed to be exactly one.
	// * if additional invocations result in further modifications to the object, webhooks are not guaranteed to be invoked again.
	// * webhooks that use this option may be reordered to minimize the number of additional invocations.
	// * to validate an object after all mutations are guaranteed complete, use a validating admission webhook instead.

  // Note:
  // * the number of additional invocations is not guaranteed to be exactly one.
  // * if additional invocations result in further modifications to the object, webhooks are not guaranteed to be invoked again.
  // * webhooks that use this option may be reordered to minimize the number of additional invocations.
  // * to validate an object after all mutations are guaranteed complete, use a validating admission webhook instead.

  // Note:
  // * the number of additional invocations is not guaranteed to be exactly one.
  // * if additional invocations result in further modifications to the object, webhooks are not guaranteed to be invoked again.
  // * webhooks that use this option may be reordered to minimize the number of additional invocations.
  // * to validate an object after all mutations are guaranteed complete, use a validating admission webhook instead.

	// ClientAuth is NoClientCert, this callback is not called on the server.
	// rawCerts may be empty on the server if ClientAuth is RequestClientCert or
	// VerifyClientCertIfGiven.
	//
	// This callback is not invoked on resumed connections, as certificates are
	// not re-verified on resumption.
	//
	// verifiedChains and its contents should not be modified.

  // Specifies the CNI provider. Can be either "default" or "multus". When set to "multus", an additional
  // NetworkAttachmentDefinition resource is deployed to the cluster to allow the istio-cni plugin to be
  // invoked in a cluster using the Multus CNI plugin.
  string provider = 22;

  // The number of pods that can be unavailable during a rolling update of the CNI DaemonSet (see
  // `updateStrategy.rollingUpdate.maxUnavailable` here:

		{name: "LoweredAtomicOr32Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true},

		// LoweredWB invokes runtime.gcWriteBarrier. arg0=mem, auxint=# of buffer entries needed
		// It saves all GP registers if necessary,
		// but clobbers R30 (LR) because it's a call.
		// R16 and R17 may be clobbered by linker trampoline.

	}
}

// Issue 25686: hard crash on concurrent timer access.
// Issue 37400: panic with "racy use of timers"
// This test deliberately invokes a race condition.
// We are testing that we don't crash with "fatal error: panic holding locks",
// and that we also don't panic.
func TestConcurrentTimerReset(t *testing.T) {
	const goroutines = 8

// memory in these densely packed chunks while they're being packed is counter-productive,
// and worse, it breaks up huge pages on systems that support them. The scavenger (invoked
// during memory allocation) further ensures that chunks it identifies as "dense" are
// immediately eligible for being backed by huge pages. Note that for the most part these

	//    resolver stub.
	//
	// 5) We generate the glink resolver stub (only once).  This
	//    computes which symbol resolver stub we came through and
	//    invokes the dynamic resolver via a pointer provided by
	//    the dynamic linker. This will patch up the .plt slot to
	//    point directly at the function so future calls go
	//    straight from the call stub to the real function, and