setSucceeds(predecessor, size);
    setSucceeds(size, successor);
    size++;
    modCount++;
    return null;
  }

  /**
   * Updates the pointers of the insertion order linked list so that {@code next} follows {@code
   * prev}. {@code ENDPOINT} represents either the first or last entry in the entire map (as
   * appropriate).
   */

   * are the "next" pointer (pointing to the next entry in the bucket chain), which will always be
   * less than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */

   * the "next" pointer (pointing to the next entry in the bucket chain), which will always be less
   * than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */

   * the "next" pointer (pointing to the next entry in the bucket chain), which will always be less
   * than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */

   *
   * @throws IllegalArgumentException if there is a loop in the causal chain
   */
  public static Throwable getRootCause(Throwable throwable) {
    // Keep a second pointer that slowly walks the causal chain. If the fast pointer ever catches
    // the slower pointer, then there's a loop.
    Throwable slowPointer = throwable;
    boolean advanceSlowPointer = false;

    Throwable cause;

            // Override to avoid null pointer issues
            final String docid = (String) docMap.get("_id");
            if (docid == null) {
                return "default.jpg";
            }
            return getImageFilename(docid);
        }

        @Override
        public void destroy() {
            // Override to avoid null pointer issues with thread
            generating = false;
        }

                case 3:
                    throw new IllegalStateException("Invalid state");
                case 4:
                    throw new NullPointerException("Null pointer");
                default:
                    throw new RuntimeException("Generic error");
                }
            }
        };
        ComponentUtil.register(mockSearchLogHelper, "searchLogHelper");

           * modified concurrently), or it might have been only an estimate to begin with (for a
           * collection like ConcurrentHashMap, which sums up several counters that may not be in
           * sync with one another). We accommodate that by resizing as necessary.
           */
          toJoin = Arrays.copyOf(toJoin, expandedCapacity(toJoin.length, toJoin.length + 1));
        }

        assertEquals(2, lines.length);
        assertTrue(lines[0].matches("TestScoreBooster : \\d+"));
        assertTrue(lines[1].matches("TestScoreBooster : \\d+"));
    }

    // Test with null pointer exception
    public void test_execute_nullPointerException() {
        NullPointerScoreBooster booster = new NullPointerScoreBooster();
        scoreUpdater.addScoreBooster(booster);

   * Normally used as a C string terminator.
   *
   * <p>Although RFC 20 names this as "Null", note that it is distinct from the C/C++ "NULL"
   * pointer.
   *
   * @since 8.0
   */
  public static final byte NUL = 0;

  /**
   * Start of Heading: A communication control character used at the beginning of a sequence of