First of all, any of the above schemes on Baidu have no effect, various settings, etc., there is also a new object and then cancel the Declare final. It has no effect, as long as the code is saved, the final will be added inexplicably, I guess it must be The problem with the plug-ins installed by idea randomly, as expected, when I uninstalled some plug-ins, the problem disappeared.
The problem that has troubled me for a long time has disappeared and it is clean! ! !
Idea can be reused again, and it's easy to use again! ! !
So don't believe in the idea plugin recommended by big guys like Baidu, the consequences of random installation, bloody tears! ! !
---------------2020.12.12----------------------------
Found the problem with that plugin, Save Actions plugin.
Do not check add final modifier to local variable or parameter
