Обсуждение: BUG #12548: I cannot connect to database

The following bug has been logged on the website:

Bug reference:      12548
Logged by:          Pasha
Email address:      16blackwood16@gmail.com
PostgreSQL version: 9.4.0
Operating system:   Windows 7
Description:

Hi support team!
I work with android in android studio.
I use android 5.0.
I am add .jar library to my project. When I run my project, click on button
connect to database, application cannot connect to database.
This is error: PSQLException: Something unusual has occurred to cause the
driver to fail. Please report this exception.
For example, i use the same code in console application and it works!
I was reading, that  have to use separate thread for connect. Maybe this is
solution this problem, but i try and it not works.
Can you help me to solve this problem.
Best wishes, Pasha.