public class OOMObject {public byte[] placeholder = new byte[32 * 1024];public static void fillHeap(int num) throws InterruptedException{List<OOMObject> list = new ArrayList<>();for(int i=0; i<num;i++){Thread.sleep(50);list.add(new OOMObject());}System.gc();}public static void main(String[] args) throws InterruptedException  {OOMObject.fillHeap(1000);}
}