return Sets.newHashSetWithExpectedSize(expectedSize);
  }

  static <E extends @Nullable Object> Set<E> newConcurrentHashSet() {
    // GWT's ConcurrentHashMap is a wrapper around HashMap, but it rejects null keys, which matches
    // the behaviour of the non-GWT implementation of newConcurrentHashSet().
    // On the other hand HashSet might be better for code size if apps aren't
    // already using Collections.newSetFromMap and ConcurrentHashMap.

            t = (SmbTree) e.nextElement();
            if (t.matches(share, service)) {
                return t;
            }
        }
        t = new SmbTree(this, share, service);
        trees.addElement(t);
        return t;
    }

    boolean matches(final NtlmPasswordAuthentication auth) {
        return this.auth == auth || this.auth.equals(auth);
    }

    }

    @Test
    public void testDeleteByQueryWithNoMatches() {
        // Test delete with query that matches nothing
        boolean result = SuggestUtil.deleteByQuery(client, settings, TEST_INDEX, QueryBuilders.termQuery("nonexistent", "value"));
        assertTrue(result); // Should still return true even with no matches
    }

    @Test(expected = SuggesterException.class)
    public void testDeleteByQueryWithInvalidIndex() {

     * @param params the search request parameters including pagination, filters, etc.
     * @param userBean the optional user bean for access control and personalization
     * @return the search result containing matched documents and metadata
     */
    protected abstract SearchResult search(String query, SearchRequestParams params, OptionalThing<FessUserBean> userBean);

                assertNotNull(result);
                assertEquals(1, result.size());
                assertNotNull(result.get(0).getFileName());
                assertTrue(result.get(0).getFileName().matches("file[1-3]\\.txt"));
            }
        } finally {
            executor.shutdown();
        }
    }

    /**
     * Test watch timeout scenario
     */
    @Test

    // TODO(dbeaumont): Support escapers where alphanumeric chars are not safe.
    checkNotNull(safeChars); // eager for GWT.
    // Avoid any misunderstandings about the behavior of this escaper
    if (safeChars.matches(".*[0-9A-Za-z].*")) {
      throw new IllegalArgumentException(
          "Alphanumeric characters are always 'safe' and should not be explicitly specified");
    }

        // ## Act & Assert ##
        assertTrue(Curl.tmpDir.exists());
    }

    @Test
    public void test_TmpDirMatchesSystemProperty() {
        // ## Test that tmpDir matches system property ##

        // ## Act ##
        final String systemTmpDir = System.getProperty("java.io.tmpdir");
        final String curlTmpDir = Curl.tmpDir.getAbsolutePath();

        // ## Assert ##

        byte[] buffer = new byte[request.size()];
        int encodedLength = request.encode(buffer, 0);

        // Verify encoded length matches size
        assertEquals(request.size(), encodedLength);

        // Verify capabilities (4 bytes)
        assertEquals(DEFAULT_CAPABILITIES, SMBUtil.readInt4(buffer, 0));

        // Verify client GUID (16 bytes)

    assertThat(cs.hashCode(), cs.toString())
      .isEqualTo(System.identityHashCode(cs))
  }

  @Test
  fun hashCode_usesIdentityHashCode_regularCase() {
    // This one's javaName matches the identifier.
    val cs = CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA256
    assertThat(cs.hashCode(), cs.toString())
      .isEqualTo(System.identityHashCode(cs))
  }

  @Test
  fun instancesAreInterned() {

            final String key = e.getKey();
            if (StringUtil.isBlank(key)) {
                return false;
            }
            return pattern.matcher(key).matches();
        }).collect(Collectors.toMap(Entry<String, String>::getKey, Entry<String, String>::getValue));
    }

    /**
     * Gets a map of environment variables.
     *