OutOfMemoryError のサンプル

OOM.java

import java.util.LinkedList;
import java.util.List;

// -Xmx5m -Xms1m で実行
public class OOM {
    private String string;

    public OOM() {
        StringBuilder sb = new StringBuilder();
        for (int i = 0 ; i < 10000 ; i++) {
            sb.append("abcdefghijklmnopqrstuvwxyz");
        }

        string = sb.toString();
    }

    public static void main(String... args) {
        try {
            List<OOM> list = new LinkedList<OOM>();

            while (true) {
                list.add(new OOM());
            }
        } catch (OutOfMemoryError oome) {
            System.out.println("OOM: " + oome.getMessage());
        } catch (Throwable t) {
            System.out.println("Other throwable: " + t.getMessage());
        }
    }
}