I downloaded the Spring Loaded jar file but I do not know what directory to put in and how to do it.
I need your helpe?
Just add the -javaagent parameter with the full path to the spring loaded jar to your startup options.
See GitHub - spring-projects/spring-loaded: Java agent that enables class reloading in a running JVM
java -javaagent:<pathTo>/springloaded-{VERSION}.jar -noverify SomeJavaClass