NullPointerException during aotoroute

[michalfapso]

Thanks a lot, Robert, for working on the autorouter.

I saw this exception while autorouting my PCB:

Exception in thread "Thread-3" java.lang.NullPointerException
	at net.freerouting.freeroute.board.PullTightAlgo.smoothen_end_corners_at_trace_1(PullTightAlgo.java:433)
	at net.freerouting.freeroute.board.PullTightAlgo.opt_changed_area(PullTightAlgo.java:164)
	at net.freerouting.freeroute.board.RoutingBoard.opt_changed_area(RoutingBoard.java:210)
	at net.freerouting.freeroute.board.RoutingBoard.opt_changed_area(RoutingBoard.java:186)
	at net.freerouting.freeroute.autoroute.BatchAutorouter.autoroute_item(BatchAutorouter.java:276)
	at net.freerouting.freeroute.autoroute.BatchAutorouter.autoroute_pass(BatchAutorouter.java:192)
	at net.freerouting.freeroute.autoroute.BatchAutorouter.autoroute_passes_for_optimizing_item(BatchAutorouter.java:60)
	at net.freerouting.freeroute.autoroute.BatchOptRoute.opt_route_item(BatchOptRoute.java:192)
	at net.freerouting.freeroute.autoroute.BatchOptRoute.opt_route_pass(BatchOptRoute.java:133)
	at net.freerouting.freeroute.autoroute.BatchOptRoute.optimize_board(BatchOptRoute.java:110)
	at net.freerouting.freeroute.interactive.BatchAutorouterThread.thread_action(BatchAutorouterThread.java:77)
	at net.freerouting.freeroute.interactive.InteractiveActionThread.run(InteractiveActionThread.java:66)

When the exception occurred, autorouting stopped. I was able to reproduce it once more, but not anymore, so it is not a critical bug :)

I use your latest release 1.4.4

Thanks,
Michal

[rbuj]

I think that this happens when the main window is closed while autorouting thread is working. In such case you can avoid that by clicking on design board before closing the main window.

[michalfapso]

Thanks Robert,
I just ran the autorouting, then switched to another virtual workspace and after few minutes I noticed, that the CPU is idle, so I checked out the autorouter and it was not completed. But I saw this exception in my terminal from which I ran the autorouter. So I didn't close the window before the exception occurred.

[rbuj]

OK, you can add "-test" argument which provides a more verbose output.

[michalfapso]

Thanks, from now on, I am running the freerouter with the -test flag, but as I wrote before, I wasn't able to reproduce this exception anymore. So you can close this issue for now and when I experience it again, I will send you the more verbose output.

[rbuj]

Thanks, feel free to open a new issue if this problem still occurs.