this.nextOrNull = firstOrNull;
  }

  /**
   * Returns the element that follows {@code previous}, or returns {@code null} if no elements
   * remain. This method is invoked during each call to {@link #next()} in order to compute the
   * result of a <i>future</i> call to {@code next()}.
   */
  protected abstract @Nullable T computeNext(T previous);

  @Override

import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code poll()} operations on a queue. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Jared Levy
 */
@GwtCompatible

        Object result = createInfoMethod.invoke(response);
        assertNotNull(result);
        assertTrue(result instanceof SmbInfoAllocation);

        // Test FS_SIZE_INFO
        response = new Trans2QueryFSInformationResponse(config, FileSystemInformation.FS_SIZE_INFO);
        result = createInfoMethod.invoke(response);
        assertNotNull(result);

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingDeque}.
 *
 * @author Kurt Alfred Kluever
 * @since 12.0
 */
@J2ktIncompatible
@GwtIncompatible

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingExecutorService}.
 *
 * @author Kurt Alfred Kluever
 * @since 10.0
 */
@J2ktIncompatible
@GwtIncompatible

    }

  private fun loomThreadFactory(): ThreadFactory {
    val ofVirtual = Thread::class.java.getMethod("ofVirtual").invoke(null)

    return Class
      .forName("java.lang.Thread\$Builder")
      .getMethod("factory")
      .invoke(ofVirtual) as ThreadFactory
  }

  private fun isLoom(): Boolean = getPlatformSystemProperty() == LOOM_PROPERTY

        // When & Then - test various sizes for 8-byte alignment
        assertEquals(8, size8Method.invoke(request, 1));
        assertEquals(8, size8Method.invoke(request, 8));
        assertEquals(16, size8Method.invoke(request, 9));
        assertEquals(72, size8Method.invoke(request, 68)); // SMB2_HEADER_LENGTH + 4 = 68
    }

    @Test
    @DisplayName("Should maintain consistent command type")

import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Marks an event subscriber method as being thread-safe. This annotation indicates that EventBus
 * may invoke the event subscriber simultaneously from multiple threads.
 *
 * <p>This does not mark the method, and so should be used in combination with {@link Subscribe}.
 *
 * @author Cliff Biffle
 * @since 10.0
 */

        final Method method = Suggester.class.getDeclaredMethod("getIndicesForAlias", String.class);
        method.setAccessible(true);
        final List<String> indices = (List<String>) method.invoke(suggester, aliasName);

        assertNotNull("Indices list should not be null", indices);
        assertEquals("Should find exactly one index", 1, indices.size());

import com.google.j2objc.annotations.J2ObjCIncompatible;
import com.google.j2objc.annotations.ReflectionSupport;
import com.google.j2objc.annotations.RetainedLocalRef;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.VarHandle;
import java.lang.reflect.Field;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.Locale;