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jdk 8 jvisualvm

Just a bit of advice/info.
I have created and compiled the following two classes in Java 8.
When I use jvisualvm the instances under memory seem to continually increment, i cant see why this should be the case..
Regards
package test;
import java.util.ArrayList;;
public class Application {
ArrayList<Hotel> hotels = new ArrayList<Hotel>();
Application () {
hotels.createHotels();
while (True){
try {
System.out.println("sleep");
Thread.sleep(30000);
} catch (InterruptedException ex)
````` {
System.out.println ("Error");
}
}
}
public static void main (String args[]){
Application app = new Application();
}
public ArrayList<Hotel> createHotels(){
ArrayList<Hotel> tempHotel = new ArrayList<Hotel>();
for (int i = 0; i < 50; i++){
Hotel hotel = new Hotel("Test");
tempHotel.add(hotel);
}
return tempHotel;
}
}
package test;
public class Hotel {
private String name;
Hotel (String name){
this.name = name;
}
Hotel (){
}
}