* Returns an iterator over the merged contents of all given {@code iterators}, traversing every
   * element of the input iterators. Equivalent entries will not be de-duplicated.
   *
   * <p>Callers must ensure that the source {@code iterators} are in non-descending order as this
   * method does not sort its input.
   *
   * <p>For any equivalent elements across all {@code iterators}, elements are returned in the order

   * {@code factory}, and the multimap contents are all serializable.
   *
   * <p>The multimap is not threadsafe when any concurrent operations update the multimap, even if
   * {@code map} and the instances generated by {@code factory} are. Concurrent read operations will
   * work correctly. To allow concurrent update operations, wrap the multimap with a call to {@link
   * #synchronizedMultimap}.
   *

 * entries may be counted in {@link Cache#size}, but will never be visible to read or write
 * operations.
 *
 * <p>Certain cache configurations will result in the accrual of periodic maintenance tasks which
 * will be performed during write operations, or during occasional read operations in the absence of
 * writes. The {@link Cache#cleanUp} method of the returned cache will also perform maintenance, but

 * entries may be counted in {@link Cache#size}, but will never be visible to read or write
 * operations.
 *
 * <p>Certain cache configurations will result in the accrual of periodic maintenance tasks which
 * will be performed during write operations, or during occasional read operations in the absence of
 * writes. The {@link Cache#cleanUp} method of the returned cache will also perform maintenance, but

import static com.google.common.collect.Iterators.advance;
import static com.google.common.collect.Iterators.all;
import static com.google.common.collect.Iterators.any;
import static com.google.common.collect.Iterators.elementsEqual;
import static com.google.common.collect.Iterators.emptyIterator;
import static com.google.common.collect.Iterators.filter;
import static com.google.common.collect.Iterators.find;

    }

    @Override
    public @Nullable E lower(@ParametricNullness E e) {
      return Iterators.find(unfiltered().headSet(e, false).descendingIterator(), predicate, null);
    }

    @Override
    public @Nullable E floor(@ParametricNullness E e) {
      return Iterators.find(unfiltered().headSet(e, true).descendingIterator(), predicate, null);
    }

    @Override

     * read operations anyway:
     *
     * - All (unsynchronized) read operations must first read the "count" field, and should not
     * look at table entries if it is 0.
     *
     * - All (synchronized) write operations should write to the "count" field after structurally
     * changing any bin. The operations must not take any action that could even momentarily

import jcifs.context.BaseContext;
import jcifs.context.SingletonContext;

/**
 * Integration tests for SmbFile using a real SMB server via Testcontainers.
 * These tests validate actual SMB protocol operations against dperson/samba:latest.
 */
@Testcontainers
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
@TestMethodOrder(MethodOrderer.MethodName.class)
class SmbFileIntegrationTest {

  public void testFromPropertiesNullKey() {
    Properties properties =
        new Properties() {
          @Override
          public Enumeration<?> propertyNames() {
            return Iterators.asEnumeration(asList(null, "first", "second").iterator());
          }
        };
    properties.setProperty("first", "true");
    properties.setProperty("second", "null");

   * about heavyweight listeners are also applicable to heavyweight functions passed to this method.
   * (Specifically, {@code directExecutor} functions should avoid heavyweight operations inside
   * {@code AsyncClosingFunction.apply}. Any heavyweight operations should occur in other threads
   * responsible for completing the returned {@code ClosingFuture}.)
   *