SDK 25 Crash when scan with timeout

[jawherjouini]

Description of the problem:

Hello,
I tried to build the sample project with sdk 25 (support appcompat 25.0.0). When I use setTimeout, application crashes at the second time I scan a barcode. It seems to be due to a memory leak. Did anyone meet this issue ?
Thanks a lot.

Which library version are you using? 3.4.0

**Which phone/tablet are you using, and which Android version does it run? Huawei Mate 9 Android 7.0

Does the same happen on other devices or an emulator? devices >= Android 5.0

**Can you reproduce the issue in the sample project included with the library? ** YES

[rkistner]

Do you get any meaningful stack trace in the application logs?