Warning while Debugging java code

Question

I was debugging my java code in Intellij IDEA and I encountered following warning. I have debugged my code a lot of times but never saw the below dialog box.

Any idea why this warning is shown and why did it suspend the JVM?

Answer 1

Just for the sake of completing this question. Above situation occurs when you have two or more instances of your program being debugged. As I had changed my code in between IDE asked whether the edited class needs to be reloaded or existing class has to be used.

You can either close the older instance or select yes to reload the classes. IDE warns of suspending the JVM but nothing like that happened in my case. On selecting yes debugging happened just fine.