1 package neutron.oom.heap;
 2 
 3 import java.util.ArrayList;
 4 import java.util.List;
 5 /**
 6  * java堆内存溢出测试
 7  * VM Args： -Xms20m -Xmx20m -XX:+HeapDumpOnOutOfMemoryError
 8  * @author zhanght
 9  *
10  * result：
11  * java.lang.OutOfMemoryError: Java heap space
12    Dumping heap to java_pid21900.hprof ...
13    Heap dump file created [27535108 bytes in 0.120 secs]
14  */
15 public class Heap_OOM {
16     
17     public static void main(String[] args) {
18         List<Person> persons = new ArrayList<>();
19         while(true){
20             persons.add(new Person());
21         }
22     }
23 
24 }
25 
26 class Person {
27     
28 }