Increasing the logging level.

gistfile1.txt

import java.util.logging.ConsoleHandler;
import java.util.logging.Level;
import java.util.logging.Logger;
public class MyDataflowProgram {
  public static void main(String[] args) {
    ConsoleHandler consoleHandler = new ConsoleHandler();
    consoleHandler.setLevel(Level.ALL);
    Logger googleApiLogger = Logger.getLogger("com.google.api");
    googleApiLogger.setLevel(Level.ALL);
    googleApiLogger.setUseParentHandlers(false);
    googleApiLogger.addHandler(consoleHandler);
    ... Pipeline Construction ...
}