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4. Versions of the License.

    4.1. New Versions.

    Oracle is the initial license steward and may publish revised and/or
    new versions of this License from time to time. Each version will be
    given a distinguishing version number. Except as provided in Section
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import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests relating to cache eviction: what does and doesn't count toward maximumSize, what happens
 * when maximumSize is reached, etc.
 *
 * @author mike nonemacher
 */
@NullUnmarked
public class CacheEvictionTest extends TestCase {
  static final int MAX_SIZE = 100;

  // algorithm would lead to an overflow.

  static boolean fitsInInt(long x) {
    return (int) x == x;
  }

  /**
   * Returns the arithmetic mean of {@code x} and {@code y}, rounded toward negative infinity. This
   * method is resilient to overflow.
   *
   * @since 14.0
   */
  public static long mean(long x, long y) {
    // Efficient method for computing the arithmetic mean.