if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            return new ExtractData(new String(InputStreamUtil.getBytes(in), getEncoding()));
        } catch (final Exception e) {
            throw new ExtractException(e);
        }
    }

    public String getEncoding() {
        return encoding;

        int i;
        int len;
        if ( buf.length < TOK_ID_SIZE + MECH_OID_LEN_SIZE ) {
            throw new IllegalArgumentException();
        }
        // TOK_ID
        for ( i = 0; i < TOK_ID.length; i++ ) {
            if ( TOK_ID[ i ] != buf[ i ] ) {
                throw new IllegalArgumentException();
            }
        }
        // MECH_OID_LEN
        len = 0xff00 & ( buf[ i++ ] << 8 );

                if (response.getContentException() != null) {
                    throw new FessSystemException(message, response.getContentException());
                }
                throw new FessSystemException(message);
            } catch (final Exception e) {
                cause = new FessSystemException("Configsync is not available.", e);
            }

        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            @SuppressWarnings("resource")
            final SlideShowExtractor<HSLFShape, HSLFTextParagraph> extractor = new SlideShowExtractor<>(new HSLFSlideShow(in));
            return new ExtractData(extractor.getText());
        } catch (final IOException e) {
            throw new ExtractException(e);
        }
    }

            return new SuggestIndexResponse(items.length, items.length, result.getFailures(), System.currentTimeMillis() - start);
        } catch (final Exception e) {
            throw new SuggestIndexException("Failed to write items[" + items.length + "] to " + index, e);
        }
    }

    public SuggestDeleteResponse delete(final String id) {
        final long start = System.currentTimeMillis();

        return filterChain.execute(context, query, boost);
    }

    public void add(final String name, final QueryCommand queryCommand) {
        if (name == null || queryCommand == null) {
            throw new IllegalArgumentException("name or queryCommand is null.");
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", name);
        }
        queryCommandMap.put(name, queryCommand);
    }

  }

  @CollectionFeature.Require(absent = ALLOWS_NULL_VALUES)
  public void testFind_nullNotContainedAndUnsupported() {
    try {
      assertEquals(getMethodName() + "(nullNotPresent) should return -1 or throw", -1, find(null));
    } catch (NullPointerException tolerated) {
    }
  }

  @CollectionFeature.Require(ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)
  public void testFind_nonNullWhenNullContained() {

            final T o = items[index];
            index++;
            return o;
        } catch (final IndexOutOfBoundsException e) {
            throw new NoSuchElementException("index=" + index);
        }
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

            if (cells.size() != header.size()) {
                throw new RuntimeException(String.format("Expected %s <td> elements in <tr>, found: %s", header.size(), tr));
            }
            String propName = cells.get(0).getTextContent().trim();
            PropertyMetaData property = classDoc.getClassMetaData().findProperty(propName);
            if (property == null) {

                        Files.copy(zis, path, StandardCopyOption.REPLACE_EXISTING);
                    }
                }
            }
        } catch (final IOException e) {
            throw new ThemeException("Failed to install " + artifact, e);
        }
    }

    public void uninstall(final Artifact artifact) {
        final String themeName = getThemeName(artifact);