}
  }

  void checkEmpty(BlockingQueue<?> q) {
    try {
      assertTrue(q.isEmpty());
      assertEquals(0, q.size());
      assertThat(q.peek()).isNull();
      assertThat(q.poll()).isNull();
      assertThat(q.poll(0, MILLISECONDS)).isNull();
      assertEquals("[]", q.toString());
      assertThat(q.toArray()).isEmpty();
      assertFalse(q.iterator().hasNext());
      try {
        q.element();

                            + "Found " + repositories.size() + " repositories but only " + set.size()
                            + " unique entries.");
        }
        if (repositories.stream().anyMatch(Objects::isNull)) {
            throw new IllegalArgumentException(
                    "Repository list contains null entries. All repository entries must be non-null RemoteRepository instances.");
        }
        return repositories;

				return updatedAt, err
			}
			// find a single expiry rule set the flag
			for _, rl := range lcCfg.Rules {
				if !rl.Expiration.IsNull() || !rl.NoncurrentVersionExpiration.IsNull() {
					expiryRuleRemoved = true
					break
				}
			}
		}

		// Form empty ILM details with `ExpiryUpdatedAt` field and save
		var cfgData []byte
		if expiryRuleRemoved {

			tests = append(tests, test{
				name: fmt.Sprint(a.GetTypeString(), "!=", b.GetTypeString()),
				fields: fields{
					a: *a, b: *b,
				},
				// Only Null == Null
				wantOk: a.IsNull() && b.IsNull() && i == 0 && j == 0,
			})
		}
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if gotOk := tt.fields.a.Equals(tt.fields.b); gotOk != tt.wantOk {

          @Override
          public @Nullable Object getIfPresent(Object key) {
            return valueRef.get();
          }
        };

    assertThat(cache.getIfPresent(new Object())).isNull();

    Object newValue = new Object();
    valueRef.set(newValue);
    assertThat(cache.getIfPresent(new Object())).isSameInstanceAs(newValue);
  }

  public void testGetAllPresent_empty() {

 */
package okhttp3.tls.internal.der

import assertk.assertThat
import assertk.assertions.hasMessage
import assertk.assertions.isEqualTo
import assertk.assertions.isFalse
import assertk.assertions.isNull
import assertk.assertions.isTrue
import java.math.BigInteger
import java.net.InetAddress
import java.net.ProtocolException
import java.text.SimpleDateFormat
import java.util.Date
import java.util.TimeZone

import assertk.assertions.isFalse
import assertk.assertions.isIn
import assertk.assertions.isInstanceOf
import assertk.assertions.isNotEmpty
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import assertk.assertions.isSameAs
import assertk.assertions.prop
import java.io.File
import java.io.IOException
import java.io.InterruptedIOException
import java.net.HttpURLConnection
import java.net.InetAddress

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.ArgumentMatchers.isNull;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;

import assertk.assertions.isEqualTo
import assertk.assertions.isFalse
import assertk.assertions.isInstanceOf
import assertk.assertions.isLessThan
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import java.io.EOFException
import java.io.IOException
import java.io.InterruptedIOException
import java.net.HttpURLConnection
import java.net.ProtocolException
import java.net.SocketTimeoutException

    underlying.put("a", 1);
    Map<String, String> map = transformValues(underlying, Functions.toStringFunction());
    assertEquals("1", map.remove("a"));
    assertThat(map.remove("b")).isNull();
  }

  public void testTransformEqualityOfMapsWithNullValues() {
    Map<String, @Nullable String> underlying = new HashMap<>();
    underlying.put("a", null);
    underlying.put("b", "");