How can I debug Scheduler Task?

Question

Hallo,
I'm developing a scheduler task. I'd like to debug it. I tried it with NWDS debugger. I ran debugger before the scheduler task had started, but it didn't stop on my breakpoint. I copy my code to regular dynpage and debugging worked, but there is something, what I can't debug this way (state of task depeds on time).
Is possible to debug scheduler task directly?
Thanks in advance for your responces,
Josef Motl

Answer 1

Hi, Josef,
there is nothing specific that prevents scheduler tasks from being debugged. I could think of two possible reasons for your problems.
First, the IDE or the VM don't seem to like setting breakpoints on some kinds of code lines, for example while conditions or (even initializing) field declarations, although the IDE does not complain about you doing that. In those cases, it helps to set the breakpoint on the nearest 'normal' code line, best are self-contained statements like assignments or method calls.
Second, scheduler tasks are of course executed in their own threads. Sometimes, for example if you at the same time debug some other code, the suspended thread executing the task won't get active in the debugger so you have to look for suspended threads in the thread list and select the one you're interested in explicitly.
One of these two options always enabled me to debug scheduled tasks, so I hope this is going to help you, too.
Cheers
Heiko