An unexpected error has occurred: object not locked by thread before wait()

What steps will reproduce the problem?
1.error occurs when the renewal application after working in the background
2.
3.

What is the expected output?
An unexpected error has occurred: object not locked by thread before wait()

What do you see instead?

What version of the product are you using?
2.1.12

On what operating system?
Android 4.2.2

What device are you using?
МТС 982О

Please provide any additional information below.

Original issue reported on code.google.com by vitas1...@gmail.com on 9 Oct 2014 at 7:41

Merged into: #853

jctwagiramungu / ebookdroid

An unexpected error has occurred: object not locked by thread before wait() #875