public void doFilter()

in java/com/google/gitiles/DefaultErrorHandlingFilter.java [46:88]
43 lines of code
11 McCabe index (conditional complexity)

  public void doFilter(HttpServletRequest req, HttpServletResponse res, FilterChain chain)
      throws IOException, ServletException {
    try {
      chain.doFilter(req, res);
    } catch (GitilesRequestFailureException e) {
      try {
        res.setHeader(GITILES_ERROR, e.getReason().toString());
        renderHtml(req, res, e.getReason().getHttpStatusCode(), e.getPublicErrorMessage());
      } catch (IOException e2) {
        e.addSuppressed(e2);
        throw e;
      }
    } catch (RepositoryNotFoundException e) {
      try {
        renderHtml(req, res, FailureReason.REPOSITORY_NOT_FOUND);
      } catch (IOException e2) {
        e.addSuppressed(e2);
        throw e;
      }
    } catch (AmbiguousObjectException e) {
      try {
        renderHtml(req, res, FailureReason.AMBIGUOUS_OBJECT);
      } catch (IOException e2) {
        e.addSuppressed(e2);
        throw e;
      }
    } catch (ServiceMayNotContinueException e) {
      try {
        renderHtml(req, res, e.getStatusCode(), e.getMessage());
      } catch (IOException e2) {
        e.addSuppressed(e2);
        throw e;
      }
    } catch (IOException | ServletException e) {
      try {
        log.warn("Internal server error", e);
        renderHtml(req, res, FailureReason.INTERNAL_SERVER_ERROR);
      } catch (IOException e2) {
        e.addSuppressed(e2);
        throw e;
      }
    }
  }