* @throws NullPointerException if both {@code first} and {@code second} are null
   * @since 18.0 (since 3.0 as {@code Objects.firstNonNull}).
   */
  public static <T> T firstNonNull(@Nullable T first, @Nullable T second) {
    if (first != null) {
      return first;
    }
    if (second != null) {
      return second;
    }
    throw new NullPointerException("Both parameters are null");
  }

   * @param second the second array of elements to concatenate
   * @param type the component type of the returned array
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  public static <T extends @Nullable Object> T[] concat(
      T[] first, T[] second, Class<@NonNull T> type) {
    T[] result = newArray(type, first.length + second.length);
    arraycopy(first, 0, result, 0, first.length);

 * limitations under the License.
 */

package com.google.common.util.concurrent;

import static java.util.concurrent.Executors.newFixedThreadPool;
import static java.util.concurrent.TimeUnit.SECONDS;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.util.ArrayList;
import java.util.Random;
import java.util.concurrent.Callable;

   * as a false predicate is found.
   *
   * <p><b>Discouraged:</b> Prefer using {@code first.and(second)}.
   */
  public static <T extends @Nullable Object> Predicate<T> and(
      Predicate<? super T> first, Predicate<? super T> second) {
    return new AndPredicate<>(Predicates.<T>asList(checkNotNull(first), checkNotNull(second)));
  }

  /**

	scannerVersionsScannedMD = NewCounterMD(scannerVersionsScanned,
		"Total number of object versions scanned since server start")
	scannerLastActivitySecondsMD = NewGaugeMD(scannerLastActivitySeconds,
		"Time elapsed (in seconds) since last scan activity.")
)

// loadClusterScannerMetrics - `MetricsLoaderFn` for cluster webhook
// such as failed objects and directories scanned.

package sql

import (
	"testing"
	"time"
)

func TestParseAndDisplaySQLTimestamp(t *testing.T) {
	beijing := time.FixedZone("", int((8 * time.Hour).Seconds()))
	fakeLosAngeles := time.FixedZone("", -int((8 * time.Hour).Seconds()))
	cases := []struct {
		s string
		t time.Time
	}{
		{"2010T", time.Date(2010, 1, 1, 0, 0, 0, 0, time.UTC)},
		{"2010-02T", time.Date(2010, 2, 1, 0, 0, 0, 0, time.UTC)},

        scriptExecutor.addShutdownListener(listener1);

        // Add second listener (should replace first)
        TestShutdownListener listener2 = new TestShutdownListener();
        scriptExecutor.addShutdownListener(listener2);

        // Call shutdown
        scriptExecutor.shutdown();

        // Verify only second listener was called
        assertFalse(listener1.wasShutdownCalled());

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

Тут `new_dict` міститиме всі пари ключ-значення з `old_dict` плюс нову пару ключ-значення:

```Python
{
    "old key": "old value",
    "second old key": "second old value",
    "new key": "new value",
}
```

      if (iter != fdef.ret().end()) {
        const auto& v = a_edges.insert({iter->second, arg.name()});
        ASSERT_TRUE(v.second) << "Duplicate edge " << iter->second << " -> "
                              << arg.name() << ". fdef: " << fdef.DebugString();
      } else {
        const auto& v = a_edges.insert({arg.name(), arg.name()});
        ASSERT_TRUE(v.second) << "Duplicate edge " << arg.name() << " -> "

        // Note: Real SmbTransportImpl will report as disconnected without actual socket
        SmbTransportImpl second = testPool.getSmbTransport(ctx, address, 445, false);

        // Then: Will create new connection since real transport has no socket
        assertNotSame(first, second, "Should create new connection when first is disconnected");
    }

    @Test