import javax.annotation.Nullable;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
 * Uses attribute matching to select a list of one or more variants for a component in a graph
 * (in practice, this should be only contain single variant).
 *
 * This class is intentionally named similarly to {@link ArtifactVariantSelector}, as it has a

#
#   Important for patching:
#
#   (2) This script targets any POSIX shell, so it avoids extensions provided
#       by Bash, Ksh, etc; in particular arrays are avoided.
#
#       The "traditional" practice of packing multiple parameters into a
#       space-separated string is a well documented source of bugs and security
#       problems, so this is (mostly) avoided, by progressively accumulating

== Module version

A module version represents a distinct set of changes of a released <<#sub:terminology_module,module>>.
For example `18.0` represents the version of the module with the coordinates `com.google:guava:18.0`.
In practice there's no limitation to the scheme of the module version.
Timestamps, numbers, special suffixes like `-GA` are all allowed identifiers.
The most widely-used versioning strategy is link:https://semver.org/[semantic versioning].

		// the environment in any case, as Go represents the
		// environment as a slice of "key=value" strings.
		return '_'
	}
	// TODO: other transformations in spec or practice?
	return r
}

	"sync"
	"time"

	"github.com/minio/madmin-go/v3"
)

// naughtyDisk wraps a POSIX disk and returns programmed errors
// specified by the developer. The purpose is to simulate errors
// that are hard to simulate in practice like DiskNotFound.
// Programmed errors are stored in errors field.
type naughtyDisk struct {
	// The real disk
	disk StorageAPI
	// Programmed errors: API call number => error to return
	errors map[int]error

    if (escaper instanceof UnicodeEscaper) {
      return (UnicodeEscaper) escaper;
    } else if (escaper instanceof CharEscaper) {
      return wrap((CharEscaper) escaper);
    }
    // In practice this shouldn't happen because it would be very odd not to
    // extend either CharEscaper or UnicodeEscaper for non-trivial cases.
    throw new IllegalArgumentException(

      if (rule != null) {
        exactMatch = rule
        break
      }
    }

    // In theory, wildcard rules are not restricted to having the wildcard in the leftmost position.
    // In practice, wildcards are always in the leftmost position. For now, this implementation
    // cheats and does not attempt every possible permutation. Instead, it only considers wildcards

- Servers running distributed MinIO instances should be less than 15 minutes apart. You can enable [NTP](http://www.ntp.org/) service as a best practice to ensure same times across servers.
- `MINIO_DOMAIN` environment variable should be defined and exported for bucket DNS style support.

				// sorts and deduplicates the values, so we need to make sure ours are
				// sorted and deduplicated as well here to preserve round-trip comparison.
				// In practice, not sorting doesn't hurt anything...

				for i := range j.MatchExpressions {
					req := metav1.LabelSelectorRequirement{}
					c.Fuzz(&req)
					req.Key = randomLabelKey(c)

[[sub:ephemeral-ci-cache]]
== Dealing with ephemeral builds

It's a common practice to run builds in ephemeral containers.
A container is typically spawned to only execute a single build before it is destroyed.
This can become a practical problem when a build depends on a lot of dependencies which each container has to re-download.