{"provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/bluerabbit/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbluerabbit.hatenablog.com%2Fentry%2F20090620%2F1245507742\" title=\"GAE\u3067IllegalArgumentException\u304c\u767a\u751f\u3057\u305f - \u3042\u304a\u3046\u3055\uff20\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"bluerabbit","width":"100%","provider_url":"https://hatena.blog","url":"https://bluerabbit.hatenablog.com/entry/20090620/1245507742","height":"190","blog_title":"\u3042\u304a\u3046\u3055\uff20\u65e5\u8a18","categories":["\u6280\u8853"],"blog_url":"https://bluerabbit.hatenablog.com/","published":"2009-06-20 23:22:22","image_url":null,"description":"\u4f8b\u5916\u306e\u5185\u5bb9 java.lang.IllegalArgumentException: String properties must be 500 characters or less. Instead, use com.google.appengine.api.datastore.Text, which can store strings of any length. at com.google.appengine.api.datastore.DataTypeUtils.checkSupportedSingleValue(DataTypeUtils.java:121) at com.google\u2026","version":"1.0","type":"rich","title":"GAE\u3067IllegalArgumentException\u304c\u767a\u751f\u3057\u305f"}