About
The thing that can hot update classes is called HotSwap and is built into JVM. All the IDEs do is that they call 'redefine' command via debugger protocol when there's a new version of *.class file.
The JVM itself can only hot swap when the method signature doesn't change
List
IDE
Agent
- https://www.eclipse.org/jetty/documentation/9.4.x/jetty-maven-plugin.html - Jetty scanIntervalSeconds
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