[Multithreading] Process hang and does not terminate properly

[micheletufano]

On an app I tested, the process hangs even if all the threads finished generating the mutants.

[micheletufano]

Just an update: I tested MutAPK on ~60 apps and it happened 2 times on 2 different apps.
It's not high priority, but it would be better to investigate.

[caev03]

Are those 2 applications the ones with higher amount of mutants generated ? or maybe the bigger apks ? I am just trying to find common things between those apps.

Can you please send me the apks.

[micheletufano]

Hi Camilo, no, they are no the ones with the highest number of mutants. They are pretty average.

I'm attaching here the apk and the log file:

• be.ppareit.swiftp_free.apk.zip
• be.ppareit.swiftp_free.txt

As you can see, the log doesn't show any error/exceptions at the end, but the process didn't finish and it was still waiting, so I had to manually kill it (so the next app could start automatically).

I don't remember the second app, I didn't keep the name.

Not sure exactly how we could fix this, but maybe let's check whether there are some good practices for multithreading that avoid this (which is rare anyway).