Unit tests failing on a remote server with IPC error

While trying to use JxMaps in my project I ran into the following error :

com.teamdev.jxmaps.internal.internal.ipc.v: IPC process exited. Exit code: 139
    at com.teamdev.jxmaps.internal.internal.ipc.p.run(SourceFile:185)
    at java.lang.Thread.run(Thread.java:745)

After a lot research I came up short finding anyone with the same problem (closest was exit code 127 which I've had before and fixed)

Code that causes this is any code that uses JxMaps, even the simplest

MapView mp = new MapView();

Would love any help I can get

edit : forgot to mention this is on ubuntu xenial x86_64

Solution

For future readers : The solution in the end was both of the following :

Install xserver

sudo apt-get install xorg openbox

Install ubuntu-desktop

sudo apt-get install ubuntu-desktop

As a result I'm getting a different error, and am now looking for a solution to that. error is :

com.teamdev.jxmaps.internal.internal.ipc.v: Failed to get Browser browserChannel 0

if and when I will find a solution I will update here

UPDATE :

The solution turned out to be setting a fake display using :

sudo startx -- :1

and defining DISPLAY environment variable to be :1