問題：
Usage of API documented as @since 1.8+ less... (Ctrl+F1)
This inspection finds all usages of methods that have @since tag in their documentation. This may be useful when development is performed under newer SDK version as the target platform for production
Error:(96, 80) java: -source 1.7 中不支持 lambda 表達式
(請使用 -source 8 或更高版本以啟用 lambda 表達式)
解決方法：
在Idea中，按 shift+Ctrl+Alt+s出現如下圖：
.