### Question:
StringProcessor { public static String encodeWebKey(String key) { try { key = URLEncoder.encode(key, "UTF-8"); } catch (UnsupportedEncodingException ex) { throw new OpenStorefrontRuntimeException("Unsupported Character set.", "Likely a Programming error", ex); } return key; }  static ObjectMapper defaultObjectMapper(); static String getResourceNameFromUrl(String url); static String getJustFileName(String originalFilename); static List<String> extractUrls(String text); static String stripeExtendedChars(String data); static String createHrefUrls(String text); static String createHrefUrls(String text, boolean showFullURL); static String stripeFieldJSON(String json, Set<String> fieldsToKeep); static String printObject(Object o); static String ellipseString(String data, int max_length); static String blankIfNull(String text); static String blankIfNull(Object text); static String nullIfBlank(String text); static Boolean isEmail(String text); static String stripHtml(String text); static BigDecimal archtecureCodeToDecimal(String code); static String urlEncode(String value); static String urlDecode(String value); static String parseStackTraceHtml(Throwable throwable); static String enclose(String s); static String enclose(String s, String enclose); static String enclose(String s, String encloseStart, String encloseEnd); static String encodeWebKey(String key); static String cleanEntityKey(String key); static String getFileExtension(String filename); static String cleanFileName(String badFileName); static String puralize(int size, String nonPuralForm, String puralForm); static String getHexFromBytes(byte[] bytes); static String decodeHexCharEscapes(String input); static boolean stringIsNotBlank(String input); static String formatForFilename(String input); static String uniqueId(); static String truncateHTML(String html, int maxCharCount); static Map<String, List<String>> splitURLQuery(String query); static String removeBadStyles(String html); static String escapeHtmlQuotes(String input);  }### Answer:
@Test public void testEncodeWebKey() { String test1 = null; try { String result = encodeWebKey(test1); fail("Returned value unexpected"); } catch (NullPointerException e) { } String test2 = "https: String result = encodeWebKey(test2); String expResult = "https%3A%2F%2Fgoogle.com%2F%23+q%3D%26computer%25science"; System.out.println(result); assertEquals(result, expResult); String test3 = ""; result = encodeWebKey(test3); System.out.println("The result: " + result); expResult = ""; assertEquals(result, expResult); }