Unexplained assertion in juce_Thread.cpp

General JUCE discussion
1

I’ve started running into a problem where I frequently get an assertion on line 233 of juce_Thread.cpp when shutting down an application.

bool Thread::stopThread (const int timeOutMilliseconds)
 // ...

    if (isThreadRunning())
    {
        // very bad karma if this point is reached, as there are bound to be
        // locks and events left in silly states when a thread is killed by force..
        jassertfalse;  //            <<--- here

The assertion comes often when I close the application, but not every time. The funny thing is that it seems to happen in any juce application, not just the one I’m working on. When I build an application from juce demo code and shut it down, I get the same thing. It wasn’t happening yesterday, and since it seems to work independently from my code, I have no idea how to diagnose it. Any suggestions?

2

I’m not seeing this on macOS 10.14.5 using the latest tip of develop. Are you able to track down the commit which started causing this behaviour?

3

I’m actually still using JUCE 5.4.1, and haven’t updated it for ages. This is why it’s so strange, as I can’t think of what might have triggered it. But perhaps this is the right time for me to update JUCE anyway–I’ll try it and see if it helps.

4

This problem seems to have passed. I’ve updated to JUCE 5.4.3, although I could swear that the problem had disappeared before I updated (indicating that it wasn’t the update that fixed it). Maybe it was just having a bad day.