final CharMatcher first;
    final CharMatcher second;

    And(CharMatcher a, CharMatcher b) {
      first = checkNotNull(a);
      second = checkNotNull(b);
    }

    @Override
    public boolean matches(char c) {
      return first.matches(c) && second.matches(c);
    }

    @GwtIncompatible // used only from other GwtIncompatible code

testing timeouts and interactive testing.

### Java
```java
MockResponse response = new MockResponse.Builder()
    .throttleBody(1024, 1, TimeUnit.SECONDS)
    .build();
```

### Kotlin
```kotlin
val response = MockResponse.Builder()
  .throttleBody(1024, 1, TimeUnit.SECONDS)
  .build()
```

#### RecordedRequest

Verify requests by their method, path, HTTP version, body, and headers.

### Java

        .build(),
    )
    var result = cachedDns.lookup("google.com")
    assertThat(result).containsExactly(address("157.240.1.18"))
    var recordedRequest = server.takeRequest(0, TimeUnit.SECONDS)
    assertThat(recordedRequest!!.method).isEqualTo("GET")
    assertThat(recordedRequest.url.encodedQuery).isEqualTo(
      "ct&dns=AAABAAABAAAAAAAABmdvb2dsZQNjb20AAAEAAQ",
    )

      (this as Object).wait(timeoutMillis - nowMillis)
    }

    throw AssertionError("Timed out waiting for response to $url")
  }

  companion object {
    val TIMEOUT_MILLIS = TimeUnit.SECONDS.toMillis(10)
  }

        }
      }
    }

  fun takeAll(): List<String> {
    val list = mutableListOf<String>()
    logs.drainTo(list)
    return list
  }

  fun take(): String =
    logs.poll(10, TimeUnit.SECONDS)
      ?: throw AssertionError("Timed out waiting for log message.")

  private EmptyImmutableSetMultimap() {
    super(ImmutableMap.of(), 0, null);
  }

  /*
   * TODO(b/242884182): Figure out why this helps produce the same class file when we compile most
   * of common.collect a second time with the results of the first compilation on the classpath. Or
   * just back this out once we stop doing that (which we'll do after our internal GWT setup
   * changes).
   */
  @Override

        // When - navigate through chain
        CommonServerMessageBlockResponse second = response.getNextResponse();
        CommonServerMessageBlockResponse third = second.getNextResponse();
        CommonServerMessageBlockResponse end = third.getNextResponse();

        // Then
        assertEquals(nextResponse, second);
        assertEquals(thirdResponse, third);
        assertNull(end);
    }

    @Test

                }
            });
        }

        // Start all threads at once
        startLatch.countDown();

        // Wait for completion
        assertTrue(doneLatch.await(5, TimeUnit.SECONDS), "Threads did not complete in time");
        executor.shutdown();

        // Verify hash is not null
        byte[] hash = transport.getPreauthIntegrityHash();
        assertNotNull(hash);

        testClient.reindexResult = true;
        testClient.deleteIndexResult = true;
        testClient.documentCount = 10;
        testClient.aliasCount = 2;
        // First createIndex (backup) succeeds, second (new) fails
        testClient.createIndexFailOnNth = 2;

        final boolean result = testClient.reindexConfigIndices(false, allTargetPrefixes());

        assertFalse(result);

            }
        }
    }

    /**
     * Compares two SMB files by name
     * @param f1 first file to compare
     * @param f1name name of first file
     * @param f2 second file to compare
     * @return comparison result for sorting
     * @throws IOException if an I/O error occurs
     */