IntelliJ The reason why the idea is suddenly slow when you start a Web project

During the process of developing a Web project using IntelliJ idea, two projects started very slowly, approximately 200s of time:

The first time forget how to solve, the second appearance, I immediately re-download the code, and then deploy, start, time is back to normal, only used about 40s.

It just appeared again, but I suddenly saw that in the place where the bean was injected, the breakpoint was broken, but the whole boot process did not terminate, but the boot became very slow. After I cancel the breakpoint, the boot time returns to normal.

It is not yet known why the breakpoint hit the bean declaration where it will start slowing down.

IntelliJ The reason why the idea is suddenly slow when you start a Web project