});
      throw new Error();
    } catch (AssertionFailedError expected) {
    }
  }

  public void testIsEmpty_map() {
    Map<Object, Object> map = new HashMap<>();
    assertEmpty(map);

    map.put("a", "b");
    try {
      assertEmpty(map);
      throw new Error();
    } catch (AssertionFailedError expected) {
    }
  }

  public void testAssertEqualInOrder() {
    List<?> list = asList("a", "b", "c");

    // Test default state of not started.
    assertEquals(1, listenerLatch.getCount());
    assertFalse(task.isDone());
    assertFalse(task.isCancelled());

    // Start the task to put it in the RUNNING state.  Have to use a separate
    // thread because the task will block on the task latch after unblocking
    // the run latch.
    exec.execute(task);
    runLatch.await();

          });
      throw new Error();
    } catch (AssertionFailedError expected) {
    }
  }

  public void testIsEmpty_map() {
    Map<Object, Object> map = new HashMap<>();
    assertEmpty(map);

    map.put("a", "b");
    try {
      assertEmpty(map);
      throw new Error();
    } catch (AssertionFailedError expected) {
    }
  }

  public void testAssertEqualInOrder() {
    List<?> list = asList("a", "b", "c");

                                    Properties env = OperatingSystemUtils.getSystemEnvVars();
                                    env.stringPropertyNames()
                                            .forEach(k -> properties.put("env." + k, env.getProperty(k)));
                                    return properties;
                                } else if ("getUserProperties".equals(method.getName())) {
                                    return Map.of();

}

// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
func isRequestSignStreamingV4(r *http.Request) bool {
	return r.Header.Get(xhttp.AmzContentSha256) == streamingContentSHA256 &&
		r.Method == http.MethodPut
}

// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
func isRequestSignStreamingTrailerV4(r *http.Request) bool {

      synchronized (mutex) {
        return typePreservingCollection(delegate().get(key), mutex);
      }
    }

    @Override
    public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
      synchronized (mutex) {
        return delegate().put(key, value);
      }
    }

    @Override
    public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {

      synchronized (mutex) {
        return typePreservingCollection(delegate().get(key), mutex);
      }
    }

    @Override
    public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
      synchronized (mutex) {
        return delegate().put(key, value);
      }
    }

    @Override
    public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {

     */
    public Map.Entry<K, V> getEntryAt(final int index) {
        assertIndex(index < size, "Index:" + index + ", Size:" + size);
        return listTable[index];
    }

    @Override
    public V put(final K key, final V value) {
        int hashCode = 0;
        int index = 0;

        if (key != null) {
            hashCode = key.hashCode();
            index = (hashCode & 0x7FFFFFFF) % mapTable.length;

                throw new IOException(
                        "Unable to find default handler for protocol: " +
                                protocol);
            }
            PROTOCOL_HANDLERS.put(protocol, handler);
            return handler;
        }
    }

                }
            }
            if ( handler == null ) {
                throw new IOException("Unable to find default handler for protocol: " + protocol);
            }
            PROTOCOL_HANDLERS.put(protocol, handler);
            return handler;
        }
    }