}

      while (true) {
        int oldValue = existingCounter.get();
        if (oldValue != 0) {
          try {
            int newValue = IntMath.checkedAdd(oldValue, occurrences);
            if (existingCounter.compareAndSet(oldValue, newValue)) {
              // newValue can't == 0, so no need to check & remove
              return oldValue;
            }
          } catch (ArithmeticException overflow) {

        return parent.remove(toCamelCase(key), value);
    }

    @Override
    public boolean replace(final K key, final V oldValue, final V newValue) {
        if (parent.replace(key, oldValue, newValue)) {
            return true;
        }
        return parent.replace(key, oldValue, newValue);
    }

    @Override
    public V replace(final K key, final V value) {
        // use original key

    public void replace(Transformer<? extends @org.jetbrains.annotations.Nullable Provider<? extends T>, ? super Provider<T>> transformation) {
        Provider<? extends T> newValue = transformation.transform(shallowCopy());
        if (newValue != null) {
            set(newValue);
        } else {
            set((T) null);
        }
    }

	// Cache the CPU usage every defaultCachePeriod
	go wait.Forever(func() {
		newValue := p.nodeMetrics.cpuUsageCoreNanoSeconds
		p.mu.Lock()
		defer p.mu.Unlock()
		p.cpuUsageCoreNanoSecondsCache = cpuUsageCoreNanoSecondsCache{
			previousValue: p.cpuUsageCoreNanoSecondsCache.latestValue,
			latestValue:   newValue,
		}
	}, defaultCachePeriod)

	return nil
}

    V oldValue = table.get(row, column);
    if (oldValue == null) {
      table.put(row, column, value);
    } else {
      V newValue = mergeFunction.apply(oldValue, value);
      if (newValue == null) {
        table.remove(row, column);
      } else {
        table.put(row, column, newValue);
      }
    }
  }

  private TableCollectors() {}

    }

    def "Can override existing system properties"() {
        when:
        runTask { withSystemProperties('mySystemProperty' : 'newValue') }

        then:
        hasSystemProperty('mySystemProperty', 'newValue')
    }

    def "JVM arguments have precedence over system properties"() {
        when:
        runTask {

            String newValue = transform(oldValue);
            Map<String, String> oldAttrs = node.getAttributes();
            Map<String, String> newAttrs = transform(oldAttrs, this::transform);
            List<XmlNode> oldChildren = node.getChildren();
            List<XmlNode> newChildren = transform(oldChildren, this::transform);
            if (oldValue != newValue || oldAttrs != newAttrs || oldChildren != newChildren) {

    V oldValue = table.get(row, column);
    if (oldValue == null) {
      table.put(row, column, value);
    } else {
      V newValue = mergeFunction.apply(oldValue, value);
      if (newValue == null) {
        table.remove(row, column);
      } else {
        table.put(row, column, newValue);
      }
    }
  }

  private TableCollectors() {}

   * iterator tests.
   *
   * @return the new container instance
   * @param newValue the new container instance
   */
  @CanIgnoreReturnValue
  protected C resetContainer(C newValue) {
    container = newValue;
    return container;
  }

  /**
   * @see #expectContents(java.util.Collection)
   * @param elements expected contents of {@link #container}

      V value = localCache.get(key);
      if (value != null) {
        return value;
      }

      try {
        V newValue = valueLoader.call();
        localCache.put(key, newValue);
        return newValue;
      } catch (Exception e) {
        throw new ExecutionException(e);
      }
    }

    @Override
    public @Nullable V getIfPresent(Object key) {