if err != nil || volumePlugin == nil {
		return volumetypes.GeneratedOperations{}, volumeToMount.GenerateErrorDetailed("VerifyControllerAttachedVolume.FindPluginBySpec failed", err)
	}

	// For attachable volume types, lets check if volume is attached by reading from node lister.
	// This would avoid exponential back-off and creation of goroutine unnecessarily. We still

	// a cloning allocation. For example, if the driver returns a *string and
	// the user is scanning into a *RawBytes, we need to copy the string.
	// The raw buffer here lets us reuse the memory for that copy across Scan calls.
	raw []byte
}

// lasterrOrErrLocked returns either lasterr or the provided err.
// rs.closemu must be read-locked.

// Hijacker, but HTTP/2 connections intentionally do not.
// ResponseWriter wrappers may also not support Hijacker. Handlers
// should always test for this ability at runtime.
type Hijacker interface {
	// Hijack lets the caller take over the connection.
	// After a call to Hijack the HTTP server library
	// will not do anything else with the connection.
	//
	// It becomes the caller's responsibility to manage

   * Creates an {@code ImmutableMap<String, String>} from a {@code Properties} instance. Properties
   * normally derive from {@code Map<Object, Object>}, but they typically contain strings, which is
   * awkward. This method lets you get a plain-old-{@code Map} out of a {@code Properties}.
   *
   * @param properties a {@code Properties} object to be converted
   * @return an immutable map containing all the entries in {@code properties}

	semacquire(&worldsema)
	gp := getg()
	gp.m.preemptoff = reason.String()
	systemstack(func() {
		// Mark the goroutine which called stopTheWorld preemptible so its
		// stack may be scanned.
		// This lets a mark worker scan us while we try to stop the world
		// since otherwise we could get in a mutual preemption deadlock.
		// We must not modify anything on the G stack because a stack shrink