requestData.setUrl(url);
        return requestData;
    }

    /**
     * Closes the response data, deleting temporary files if any.
     * @throws IOException if an I/O error occurs.
     */
    @Override
    public void close() throws IOException {
        if (isTemporaryFile) {
            FileUtil.deleteInBackground(responseBodyFile);
        }
    }

     *
     * @param client the FTPClient instance to validate
     * @throws CrawlingAccessException if the FTP request failed
     */
    private void validateRequest(final FTPClient client) {
        final int replyCode = client.getReplyCode();
        if (replyCode >= 200 && replyCode < 300) {
            return;
        }

        try {
            ruleManager.addRule(-1, rule2);
            fail("Should throw IndexOutOfBoundsException for negative index");
        } catch (IndexOutOfBoundsException e) {
            // Expected
        }

        try {
            ruleManager.addRule(5, rule2);
            fail("Should throw IndexOutOfBoundsException for index > size");
        } catch (IndexOutOfBoundsException e) {

     * @return a string representing the bulk line for OpenSearch indexing
     * @throws SuggesterException if an I/O error occurs during the creation of the bulk line
     */
    public static String createBulkLine(final String index, final String type, final SuggestItem item) {
        if (item == null || item.getId() == null || item.getText() == null) {
            throw new SuggesterException("Invalid SuggestItem: item, id, or text is null");
        }

[Mockito](https://github.com/mockito/mockito):

1. Script the mocks.
2. Run application code.
3. Verify that the expected requests were made.

Here's a complete example:

### Java
```java
public void test() throws Exception {
  // Create a MockWebServer. These are lean enough that you can create a new
  // instance for every unit test.
  MockWebServer server = new MockWebServer();

  // Schedule some responses.

                  throws Throwable {
                throw exception;
              }
            });
    T wrapper = wrapperFunction.apply(proxy);
    try {
      method.invoke(wrapper, getParameterValues(method));
      fail(method + " failed to throw exception as is.");
    } catch (InvocationTargetException e) {
      if (exception != e.getCause()) {

/**
 * @author shinsuke
 *
 */
public class HtmlTransformerTest extends PlainTestCase {
    public HtmlTransformer htmlTransformer;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        htmlTransformer = new HtmlTransformer();
        htmlTransformer.setName("htmlTransformer");
        Map<String, String> featureMap = newHashMap();

     * @return {@link MessageDigest}
     * @throws RuntimeException
     *             If a {@link NoSuchAlgorithmException} occurs
     */
    public static MessageDigest getInstance(final String algorithm) {
        assertArgumentNotEmpty("algorithm", algorithm);

        try {
            return MessageDigest.getInstance(algorithm);
        } catch (final NoSuchAlgorithmException e) {
            throw new NoSuchAlgorithmRuntimeException(e);

   * returns a new {@code InternetDomainName} with the value {@code www.bar.foo.com}. Only lenient
   * validation is performed, as described {@link #from(String) here}.
   *
   * @throws NullPointerException if leftParts is null
   * @throws IllegalArgumentException if the resulting name is not valid
   */
  public InternetDomainName child(String leftParts) {
    return from(checkNotNull(leftParts) + "." + name);
  }

  /**

    if (key == null) {
      throw new NullPointerException("null key in entry: null=" + value);
    } else if (value == null) {
      throw new NullPointerException("null value in entry: " + key + "=null");
    }
  }

  @CanIgnoreReturnValue
  static int checkNonnegative(int value, String name) {
    if (value < 0) {
      throw new IllegalArgumentException(name + " cannot be negative but was: " + value);