import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.stream.Collector;
import jsinterop.annotations.JsMethod;
import org.jspecify.annotations.Nullable;

/**
 * GWT emulated version of {@link com.google.common.collect.ImmutableSet}. For the unsorted sets,
 * they are thin wrapper around {@link java.util.Collections#emptySet()}, {@link

        return this.first().equals(that.first()) && this.last().equals(that.last());
      }
    }
    return super.equals(object);
  }

  // copied to make sure not to use the GWT-emulated version
  @Override
  public int hashCode() {
    return Sets.hashCodeImpl(this);
  }

  @GwtIncompatible
  @J2ktIncompatible

	b.cachesRoot[best.root] = append(b.cachesRoot[best.root], best.id)
	b.updated = true
	b.debugf("returning new cache %s, bucket: %v", best.id, best.bucket)
	return best
}

// cleanup removes redundant and outdated entries.
func (b *bucketMetacache) cleanup() {
	// Entries to remove.
	remove := make(map[string]struct{})

	// Test on a copy
	// cleanup is the only one deleting caches.
	caches, _ := b.cloneCaches()

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable

Object form. 

3. Grant of Patent License. Subject to the terms and conditions of this 
License, each Contributor hereby grants to You a perpetual, worldwide, 
non-exclusive, no-charge, royalty-free, irrevocable (except as stated in 
this section) patent license to make, have made, use, offer to sell, sell, 
import, and otherwise transfer the Work, where such license applies only to 
those patent claims licensable by such Contributor that are necessarily 

                progressHandler = new VagrantProgressLogger("==> " + extension.getBox() + ": ");
            }
            OutputStream output = execSpec.getStandardOutput();
            // output from vagrant needs to be manually curated because --machine-readable isn't actually "readable"
            OutputStream progressStream = new ProgressOutputStream(vagrantSpec.command, progressHandler);

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable

        break;
      }
      index++;
    }
    return index;
  }

  /**
   * Escapes a code point that has no direct explicit value in the replacement array and lies
   * outside the stated safe range. Subclasses should override this method to provide generalized
   * escaping for code points if required.
   *
   * <p>Note that arrays returned by this method must not be modified once they have been returned.