Hi,
I’ve seen that ProgressIndicator#setValue() is not thread-safe, although the
Book of Vaadin
suggests that this method should be called from a background-thread. This might lead to weird problems (as always in concurrent programming …).
kind regards
Tobias
Hi,
yes, there are at least
these
tickets
about the issue already.
As a general guideline, all access to Vaadin component from external threads should be synchronized to the Application instance to ensure that no ‘funny’ effects will happen. I hope someone will fix the documentation/example about the ProgressIndicator also.
-Tepi