Experimental Physics and
Industrial Control System

"Kasemir, Kay" <[email protected]> · Wed, 7 Jan 2015 16:46:47 +0000

On Jan 7, 2015, at 10:59 AM, zunbeltz <[email protected]> wrote:
> The start() methods are the same in my version and the one in github.
> Lines 115-117 are:
>        thread = new Thread(this, "WriteThread");
>        output.println("time to start: "+ currentData());
>        thread.start();

Maybe we have a different definition of "same", since the code on github has start() in lines 90-102, and there's not output.println:

 90   public void start(double write_period, int batch_size)
 91   {
 92        if (write_period < MIN_WRITE_PERIOD)
 93        {
 94            Activator.getLogger().log(Level.INFO, "Adjusting write period from {0} to {1}",
 95                new Object[] { write_period, MIN_WRITE_PERIOD });
 96            write_period = MIN_WRITE_PERIOD;
 97        }
 98        millisec_delay = (int)(1000.0 * write_period);
 99        this.batch_size = batch_size;
100       thread = new Thread(this, "WriteThread");
101       thread.start();
102  }

>  guess that the error is in the new Thread line because 116 line is composed of standard library functions (as far as my poor java knowledge helps).
> Am  i correct or shuld I look if the currentData() is not working fine?

Your line 116 is:

>        output.println("time to start: "+ currentData());

Your output variable is null.
If currentData() returned null, you would see "time to start: null" in the output.
I don't know how you get the output variable, because your code is not the same as the one on github.

Thanks,
Kay

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System