ConcurrentModificationException: TorControlConnection.handleEvent

[Torsten Grote]

Samsung Galaxy S9+ Android 10 (SDK 29)

java.util.ConcurrentModificationException: 
  at java.util.ArrayList$Itr.next (ArrayList.java:860)
  at net.freehaven.tor.control.TorControlConnection.handleEvent (TorControlConnection.java:239)
  at net.freehaven.tor.control.TorControlConnection.react (TorControlConnection.java:382)
  at net.freehaven.tor.control.TorControlConnection$ControlParseThread.run (TorControlConnection.java:352)

[Torsten Grote]

The line where the exception gets thrown is for (RawEventListener rawEventListener : rawEventListeners) {.

Looks like we might be using addRawEventListener() while the control connection is handling an event.

We should probably set the listeners before launching the control thread.

[Torsten Grote]

The real issue here seems to be that we are removing the event listener while still in that listener loop.

I don't really see another solution except just keeping that event listener attached.

[akwizgran]

Fixed by #21.