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#2456 aggregation of xml files when no files are found results in hung busy state
test146 suddenly started hanging last week and I'm finally getting to look into what's causing the problem. If a vap contains an aggregation of xml files, and no xml files are found, then the data source cannot be resolved and the application is left in a bad state. I also notice that the .vap is a time series browse without a time axis, so this may also be part of the problem.
On my system, try to load the vap file:///home/jbf/ct/hudson/vap/errorSubmissions.vap . I'll make a public version to demo the problem.
Discussion
Simply load https://github.com/autoplot/dev/blob/master/bugs/2022/20220601/errorSubmissions.vap
to demo the bug.
Even more interestingly do File->Reset twice and see where it gets stuck because of the lock.
Last edit: Jeremy Faden 2022-06-01
It looks like with this vap, two resetMePropertyChangeListeners are registered and expected to run, but only one runs.
Ok, the bug is a nice one, because it could have affected all sorts of things. There's a RunLaterListener which does some action when a property changes. If two are registered on the same property, then a crash in the call to the first RunLaterListener will prevent the second from getting the message. The calls to run() in RunLaterListener are now wrapped in a try catch, so this can't happen now.