Access restriction: The method 'CharacterEncoder.encode(byte[])' is not API (restriction on required

Access restriction: The method 'CharacterEncoder.encode(byte[])' is not API (restriction on required
该异常的解决方法是
1：右键点击项目，选择属性properties
2选择java中的Build Path

3：如下图，选中JRE，点击右侧的Edit

会弹出如下的窗口

在Resolution中选择Accessible，并在Rule Pattern中输入 **即可
点击完所有的OK以后就可以了
Access restriction: The method 'CharacterEncoder.encode(byte[])' is not API (restriction on required

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