在执行spark算子时产生的报错，其实很简单，，55对应的是jdk11，我当前工程不支持高版本，我一查，我idea的jdk版本竟然变成了jdk11，我的项目配置是jdk8，不匹配！，把idea的版本改成1.8就行了，吐了。。
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