*
 * <p>A new {@code CacheBuilder} can be instantiated from a {@code CacheBuilderSpec} using {@link
 * CacheBuilder#from(CacheBuilderSpec)} or {@link CacheBuilder#from(String)}.
 *
 * @author Adam Winer
 * @since 12.0
 */
@SuppressWarnings("GoodTime") // lots of violations (nanosecond math)
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public final class CacheBuilderSpec {
  /** Parses a single value. */

 *
 * <p>A new {@code CacheBuilder} can be instantiated from a {@code CacheBuilderSpec} using {@link
 * CacheBuilder#from(CacheBuilderSpec)} or {@link CacheBuilder#from(String)}.
 *
 * @author Adam Winer
 * @since 12.0
 */
@SuppressWarnings("GoodTime") // lots of violations (nanosecond math)
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public final class CacheBuilderSpec {
  /** Parses a single value. */

            .expireAfterAccess(500000, TimeUnit.MILLISECONDS)
            .maximumSize(count)
            .build();
  }

  public void testComputeIfAbsent() {
    // simultaneous insertion for same key, expect 1 winner
    doParallelCacheOp(
        count,
        n -> {
          cache.asMap().computeIfAbsent(key, k -> "value" + n);
        });
    assertEquals(1, cache.size());
  }

import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;

/**
 * Tests CacheBuilderSpec. TODO(user): tests of a few invalid input conditions, boundary
 * conditions.
 *
 * @author Adam Winer
 */
public class CacheBuilderSpecTest extends TestCase {
  public void testParse_empty() {
    CacheBuilderSpec spec = parse("");
    assertNull(spec.initialCapacity);
    assertNull(spec.maximumSize);

import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;

/**
 * Tests CacheBuilderSpec. TODO(user): tests of a few invalid input conditions, boundary
 * conditions.
 *
 * @author Adam Winer
 */
public class CacheBuilderSpecTest extends TestCase {
  public void testParse_empty() {
    CacheBuilderSpec spec = parse("");
    assertNull(spec.initialCapacity);
    assertNull(spec.maximumSize);