tempBuf.append(Arrays.toString((double[]) value));
            } else {
                tempBuf.append('"').append(StringEscapeUtils.escapeJson(value.toString())).append('"');
            }
        } catch (final Exception e) {
            tempBuf.append("null");
        }
        buf.append(tempBuf.toString());
        return buf;
    }

            result.setCreatedBy(DfTypeUtil.toString(source.get("createdBy")));
            result.setCreatedTime(DfTypeUtil.toLong(source.get("createdTime")));
            result.setSuggestWord(DfTypeUtil.toString(source.get("suggestWord")));
            result.setTargetLabel(DfTypeUtil.toString(source.get("targetLabel")));
            result.setTargetRole(DfTypeUtil.toString(source.get("targetRole")));

    T proxy = new FreshValueGenerator().newFreshProxy(interfaceType);
    assertEquals(
        "toString() isn't properly forwarded",
        proxy.toString(),
        wrapperFunction.apply(proxy).toString());
  }

  private static @Nullable Object[] getParameterValues(Method method) {
    FreshValueGenerator paramValues = new FreshValueGenerator();

        return rootCause;
    }
    public String toString() {
        if (rootCause != null) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            rootCause.printStackTrace(pw);
            return super.toString() + "\n" + sw;
        }
        return super.toString();
    }

            }

            return metadata != null && metadata.toString().equals(node2.metadata.toString());
        } else {
            return super.equals(obj);
        }
    }

    @Override
    public int hashCode() {
        if (metadata == null) {
            return super.hashCode();
        }

        return metadata.toString().hashCode();
    }

            result.setAccessType(DfTypeUtil.toString(source.get("accessType")));
            result.setClientIp(DfTypeUtil.toString(source.get("clientIp")));
            result.setHitCount(DfTypeUtil.toLong(source.get("hitCount")));
            result.setHitCountRelation(DfTypeUtil.toString(source.get("hitCountRelation")));
            result.setLanguages(DfTypeUtil.toString(source.get("languages")));

                if (buf != null) {
                    sitemapUrl.setLoc(buf.toString().trim());
                    buf = null;
                }
            } else if (LASTMOD_ELEMENT.equals(qName)) {
                if (buf != null) {
                    sitemapUrl.setLastmod(buf.toString().trim());
                    buf = null;
                }

        Map<String, Object> source;
        while ((source = reader.read()) != null) {
            assertTrue(source.get("field1").toString().startsWith("test"));
            valueSet.add(source.get("field1").toString());
            count++;
        }
        assertEquals(num, count);
        assertEquals(num, valueSet.size());
    }

    @Test

    }

    protected void addFessSystemProperties(final List<String> cmdList) {
        System.getProperties().keySet().stream().filter(k -> k != null && k.toString().startsWith(Constants.SYSTEM_PROP_PREFIX))
                .forEach(k -> addSystemProperty(cmdList, k.toString(), null, null));
    }

    protected void addFessCustomSystemProperties(final List<String> cmdList, final String regex) {

     * @return 変換された{@literal String}
     */
    public static String toString(final Object value) {
        return toString(value, null);
    }

    /**
     * 文字列に変換します。
     *
     * @param value
     *            変換元のオブジェクト
     * @param pattern
     *            パターン文字列
     * @return 変換された{@literal String}
     */
    public static String toString(final Object value, final String pattern) {
        if (value == null) {