original request, including `Content-Length`, `Transfer-Encoding`, `User-Agent`, `Host`, `Connection`, and `Content-Type`. It will add an `Accept-Encoding` header for transparent response compression unless the header is already present. If you’ve got cookies, OkHttp will add a `Cookie` header with them.

Some requests will have a cached response. When this cached response isn’t fresh, OkHttp can do a _conditional GET_ to download an updated response if it’s newer than what’s cached. This...

                thread.join();
            } catch (InterruptedException e) {
                fail("Thread interrupted: " + e.getMessage());
            }
        }

        // Verify all threads got the same instances
        for (int i = 0; i < threadCount; i++) {
            assertSame(invertibleCryptographer, invertibles[i]);
            assertSame(oneWayCryptographer, oneWays[i]);
        }
    }

        for (int i = 0; i < threadCount; i++) {
            assertNull(exceptions[i], "Thread " + i + " threw exception");
            assertNotNull(results[i], "Thread " + i + " got null result");
            Assertions.assertEquals(3, results[i].length, "Thread " + i + " got wrong array length");
        }
    }

    /**
     * Test that volatile fields ensure visibility across threads.

        }

        // Verify no exceptions
        for (int i = 0; i < threadCount; i++) {
            assertNull(exceptions[i], "Thread " + i + " threw exception");
            assertEquals("Thread " + i + " got wrong name", "Test", results[i]);
        }
    }

  }

  private ExecutionException getExpectingExecutionException(AbstractFuture<String> future)
      throws InterruptedException {
    try {
      String got = future.get();
      throw new AssertionError("Expected exception but got " + got);
    } catch (ExecutionException e) {
      return e;
    }
  }

  private static final class WaiterThread extends Thread {

    int newValueIndex = findEntryByValue(newValue, newValueHash);
    if (newValueIndex != ABSENT) {
      if (force) {
        removeEntryValueHashKnown(newValueIndex, newValueHash);
        if (entry == size) { // this entry got moved to newValueIndex
          entry = newValueIndex;
        }
      } else {
        throw new IllegalArgumentException("Value already present in map: " + newValue);
      }
    }

  }

  private ExecutionException getExpectingExecutionException(AbstractFuture<String> future)
      throws InterruptedException {
    try {
      String got = future.get();
      throw new AssertionError("Expected exception but got " + got);
    } catch (ExecutionException e) {
      return e;
    }
  }

  private static final class WaiterThread extends Thread {

        } catch (final Throwable t) {
            if (!expectedType.isInstance(t)) {
                throw new AssertionError("Expected " + expectedType.getSimpleName() + " but got " + t.getClass().getSimpleName(), t);
            }
        }
    }

        emptyMappingFile.manager(dictionaryManager);

        PagingList<CharMappingItem> result = emptyMappingFile.selectList(0, 10);

        // Debug: print what we actually got
        if (result.size() > 0) {
            for (CharMappingItem item : result) {
                System.out.println("Unexpected item: " + item.toLineString());
            }
        }

    assertThrows(IllegalStateException.class, builder2::weakValues);
  }

  @J2ktIncompatible
  @GwtIncompatible // Duration
  @IgnoreJRERequirement // No more dangerous than wherever the caller got the Duration from
  public void testLargeDurationsAreOk() {
    Duration threeHundredYears = Duration.ofDays(365 * 300);
    CacheBuilder<Object, Object> unused =
        CacheBuilder.newBuilder()