@Override
            public String getApiJsonResponseExceptionIncluded() {
                return "false";
            }
        });

        FessConfig config = ComponentUtil.getFessConfig();
        assertEquals("false", config.getApiJsonResponseExceptionIncluded());
    }

    // Test error code generation
    @Test

            } catch (final IOException ignore) {}
            return sb.toString();
        };

        if (Constants.TRUE.equalsIgnoreCase(ComponentUtil.getFessConfig().getApiJsonResponseExceptionIncluded())) {
            return stacktraceString.get();
        }

        final String errorCode = UUID.randomUUID().toString();
        if (logger.isDebugEnabled()) {