Test case demonstrating race in sqlite-jdbc 3.16.1

TestSqlite.java

import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

public class TestSqlite {
    public static void main(String[] args) throws Throwable {
        Object lock = new Object();
        ExecutorService pool = Executors.newFixedThreadPool(32);
        for (int i = 0; i < 32; i++) {
            final String connStr = "jdbc:sqlite:sample-" + i + ".db";
            final int sleepMillis = i;
            pool.execute(() -> {
                    try {
                        Thread.sleep(sleepMillis * 10);
                    } catch (InterruptedException e) {
                    }
                    try {
                        // Uncomment the synchronized block and everything works.                                                                                                                               
   		                  //synchronized (TestSqlite.class) {                                                                                                                                                     
                        Connection conn = DriverManager.getConnection(connStr);
                        //}                                                                                                                                                                                     
                        System.out.println("Connected!");
                    } catch (SQLException e) {
                        e.printStackTrace();
                    }
                });
        }
        pool.shutdown();
        pool.awaitTermination(1, TimeUnit.SECONDS);
    }
}