HSDB

select t from java.lang.Thread t

$JAVA_HOME/bin/java -classpath $JAVA_HOME/lib/sa-jdi.jar sun.jvm.hotspot.HSDB

import java.util.ArrayList; import java.util.List; import java.util.Properties;
/**  * Created by jason on 7/25/2016.  */ public class gg {
    public static void main(String[] args) {
        String s = System.getProperty("java.class.path");         System.out.println(s);
        Properties p = System.getProperties();         p.list(System.out);
     List<String>  LT =new ArrayList<>();                 for (int i = 0; i < 1000000000; i++) {             LT.add(Integer.toString(i));         }
        System.out.println("Hello World!");     }
    }