performance - Simple Java program - profiling shows unexpected behavior -


given extremely simple java program, shown below, start program , profile visualvm. 

public class test {     public static void main(string args[]) throws interruptedexception{       thread.sleep(10000000l);    }  }

as can seen below metrics, behind scenes keeps on ticking. possibly going on behind scenes here? included screenshot of "sampler" memory , looks if bunch of primitive arrays keep getting created, why this?

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you connected process visualvm. obviously, takes some work present fact jvm doing work :) in specific detail, data being collected , sent on jmx connection. garbage created.


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