Eclipse Unable to install breakpoint in XXX solution

I've searched all over the internet for a solution, but none solved the problem.
For example: under window-preferences-java-
compiler , remove the check mark before Add line number attributes.., compile, and check it again. Waiting doesn't help.

Finally, after careful analysis,

the class marked by @Component is
automatically instantiated through <!-- auto-scanned package name--> <context:component-scan base-package="com.XXX" />, and the breakpoint It is in a certain method of these classes, so the



solution is: remove @Component, the most reasonable solution, (of course it is suitable for this in my project, this solution may not be suitable for any situation, just for reference!)