How to use rt.jar in jdk11

spring cloud project upgraded from 8 to 11.
my MAVEN 3.6, springboot 2.1.3, eclipse latest.
I have added a module-info file.
ask for advice!
how to use the jar package from the original rt.jar in 11

rt.jar

code/code
SpringBoot package


JDK


this is my project dependency

Jul.11,2022
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