new Function<AnEnum, AnEnum>() {
              boolean used = false;

              @Override
              public AnEnum apply(AnEnum ae) {
                checkState(!used, "should not be applied more than once");
                used = true;
                return ae;
              }
            });
    ImmutableMap<AnEnum, AnEnum> copy = Maps.immutableEnumMap(map);

Transition tiers can be added to MinIO using `mc admin tier add` command to associate a `gcs`, `s3` or `azure` bucket or prefix path on a bucket to the tier name.
Lifecycle transition rules can be applied to buckets (both versioned and un-versioned) by specifying the tier name defined above as the transition storage class for the lifecycle rule.

## Implementation

    }

    /**
     * Execute a callable through the circuit breaker with fallback
     *
     * @param <T> return type
     * @param callable the callable to execute
     * @param fallback fallback supplier if circuit is open
     * @return the result or fallback value
     * @throws Exception if execution fails and no fallback provided
     */
    public <T> T call(Callable<T> callable, Callable<T> fallback) throws Exception {

import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.UUID;
import java.util.function.Supplier;

import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.text.StringEscapeUtils;
import org.apache.logging.log4j.LogManager;

  }

  @Override
  public Collection<V> values() {
    return delegate.values();
  }

  @CanIgnoreReturnValue
  private <T> T checkValid(T t) {
    // a ClassCastException is what's supposed to happen!
    @SuppressWarnings("unchecked")
    K k = (K) t;
    int unused = comparator().compare(k, k);
    return t;
  }

  @Override
  public boolean equals(@Nullable Object obj) {

  }

  EqualsTester(RelationshipTester.ItemReporter itemReporter) {
    this.itemReporter = checkNotNull(itemReporter);
  }

  /**
   * Adds {@code equalityGroup} with objects that are supposed to be equal to each other and not
   * equal to any other equality groups added to this tester.
   *
   * <p>The {@code @Nullable} annotations on the {@code equalityGroup} parameter imply that the

var errLessData = StorageErr("less data available than what was requested")

// errMoreData = returned when more data was sent by the caller than what it was supposed to.
var errMoreData = StorageErr("more data was sent than what was advertised")

// indicates readDirFn to return without further applying the fn()
var errDoneForNow = errors.New("done for now")

        return MappedRange.InlineDelta(mapping.rangeStart, codePointDelta)
      }
    }
  }
  return null
}

/**
 * Inputs must have applied [withoutSectionSpans].
 */
internal fun sections(mappings: List<Mapping>): Map<Int, List<MappedRange>> {
  val result = mutableMapOf<Int, MutableList<MappedRange>>()

  for (mapping in mappings) {

    }

    @Test
    @DisplayName("Test configuration updates")
    void testConfigurationUpdates() {
        resourceManager.configure(5000, 1000, false, false);

        // Configuration should be applied (we can't directly verify private fields,
        // but we can ensure it doesn't throw)
        assertDoesNotThrow(() -> resourceManager.checkForLeaks());
        assertDoesNotThrow(() -> resourceManager.performCleanup());

Once the **patch** is successfully applied, developer must run tests to validate the fix that was backported by running following tests, locally.

Unit tests

```
λ make test
```

Verify different type of MinIO deployments work

```