code: @Test public void testLogLotsOfThreadsToDatabase() throws IOException, InterruptedException, ExecutionException, SQLException {
    JDBCLogHandler logHandler=new JDBCLogHandler(HELLO_HANDLER,DefaultServer.getWorker(),"combined",ds);
    CompletionLatchHandler latchHandler;
    DefaultServer.setRootHandler(latchHandler=new CompletionLatchHandler(NUM_REQUESTS * NUM_THREADS,logHandler));
    ExecutorService executor=Executors.newFixedThreadPool(NUM_THREADS);
    try {
      final List<Future<?>> futures=new ArrayList<Future<?>>();
      for (int i=0; i < NUM_THREADS; ++i) {
        final int threadNo=i;
        futures.add(executor.submit(new Runnable(){
          @Override public void run(){
            TestHttpClient client=new TestHttpClient();
            try {
              for (int i=0; i < NUM_REQUESTS; ++i) {
                HttpGet get=new HttpGet(DefaultServer.getDefaultServerURL() + "/path");
                HttpResponse result=client.execute(get);
                Assert.assertEquals(200,result.getStatusLine().getStatusCode());
                final String response=HttpClientUtils.readResponse(result);
                Assert.assertEquals("Hello",response);
              }
            }
   catch (          IOException e) {
              throw new RuntimeException(e);
            }
   finally {
              client.getConnectionManager().shutdown();
            }
          }
        }
  ));
      }
      for (    Future<?> future : futures) {
        future.get();
      }
    }
    finally {
      executor.shutdown();
    }
    latchHandler.await();
    logHandler.awaitWrittenForTest();
    Connection conn=null;
    Statement statement=null;
    try {
      conn=ds.getConnection();
      statement=conn.createStatement();
      ResultSet resultDatabase=conn.createStatement().executeQuery("SELECT COUNT(*) FROM PUBLIC.ACCESS;");
      resultDatabase.next();
      Assert.assertEquals(resultDatabase.getInt(1),NUM_REQUESTS * NUM_THREADS);
    }
    finally {
      if (statement != null) {
        statement.close();
      }
      if (conn != null) {
        conn.close();
      }
    }
  }
  