- Kube-apiserver --help flag help is now printed in sections. ([#64517](https://github.com/kubernetes/kubernetes/pull/64517), [@sttts](https://github.com/sttts))

            CIFSContext result = baseContext.withCredentials(auth);

            // Add a unique identifier to help with debugging
            log.debug("Created fresh context for test isolation: {}", System.currentTimeMillis());
            return result;
        } catch (Exception e) {

 * article on <a href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>The main purpose of {@code ListenableFuture} is to help you chain together a graph of
 * asynchronous operations. You can chain them together manually with calls to methods like {@link
 * Futures#transform(ListenableFuture, Function, Executor) Futures.transform}, but you will often

   background-color: lighten($dark, 10%);\n  }\n  .jsgrid-edit-row > .jsgrid-cell,\n  .jsgrid-filter-row > .jsgrid-cell,\n  .jsgrid-grid-body, .jsgrid-grid-header,\n  .jsgrid-header-row > .jsgrid-header-cell,\n  .jsgrid-insert-row > .jsgrid-cell,\n  .jsgrid-row > .jsgrid-cell,\n  .jsgrid-alt-row > .jsgrid-cell {\n    border-color: $gray-600;\n  }\n  .jsgrid-header-row > .jsgrid-header-cell,\n  .jsgrid-row > .jsgrid-cell {\n    background-color: $dark;\n  }\n  .jsgrid-alt-row > .jsgrid-cell {\n  ...

* Trusty: Avoid reaching GCE custom metadata size limit ([#22818](https://github.com/kubernetes/kubernetes/pull/22818), [@andyzheng0831](https://github.com/andyzheng0831))
* Update kubectl help for 1.2 resources ([#23305](https://github.com/kubernetes/kubernetes/pull/23305), [@janetkuo](https://github.com/janetkuo))

		if err != nil && err != io.EOF {
			// If there is a disconnection before globalNetPerfMinDuration (we give a margin of error of 1 sec)
			// would mean the network is not stable. Logging here will help in debugging network issues.
			if time.Since(connectTime) < (globalNetPerfMinDuration - time.Second) {
				peersLogIf(ctx, err)
			}
		}
		if err != nil {
			break
		}
	}
}

        if (p == guard) {
          if (pred == null) {
            activeGuards = p.next;
          } else {
            pred.next = p.next;
          }
          p.next = null; // help GC
          break;
        }
      }
    }
  }

  /*
   * Methods that loop waiting on a guard's condition until the guard is satisfied, while recording

aead.dev/mtls v0.2.1 h1:47NHWciMvrmEhlkpnis8/RGEa9HR9gcbDPfcArG+Yqs=
aead.dev/mtls v0.2.1/go.mod h1:rZvRApIcPkCNu2AgpFoaMxKBee/XVkKs7wEuYgqLI3Q=
cel.dev/expr v0.23.1 h1:K4KOtPCJQjVggkARsjG9RWXP6O4R73aHeJMa/dmCQQg=
cel.dev/expr v0.23.1/go.mod h1:hLPLo1W4QUmuYdA72RBX06QTs6MXw941piREPl3Yfiw=
cloud.google.com/go v0.120.1 h1:Z+5V7yd383+9617XDCyszmK5E4wJRJL+tquMfDj9hLM=

- If a bad flag is supplied to a kubectl command, only a tip to run `--help` is printed, instead of the usage menu.  Usage menu is printed upon running `kubectl command --help`. ([#82423](https://github.com/kubernetes/kubernetes/pull/82423), [@sallyom](https://github.com/sallyom))

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import org.jspecify.annotations.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