printContextInitInfo() prints nulls on Linux

jMonkeyEngine application startup messages on Windows 7:

Jul 02, 2019 10:08:03 AM com.jme3.system.JmeDesktopSystem initialize
INFO: Running on jMonkeyEngine 3.3-alpha2
 * Branch: HEAD
 * Git Hash: 3f1f2e8
 * Build Date: 2019-05-22
Jul 02, 2019 10:08:04 AM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
INFO: LWJGL 2.9.3 context running on thread jME3 Main
 * Graphics Adapter: nvd3dumx,nvwgf2umx,nvwgf2umx
 * Driver Version: 23.21.13.8873
 * Scaling Factor: 1

When I boot Linux Mint 19.1 on the same hardware, the graphics adapter and driver version are described as null:

Jul 02, 2019 10:13:54 AM com.jme3.system.JmeDesktopSystem initialize
INFO: Running on jMonkeyEngine 3.3-alpha2
 * Branch: HEAD
 * Git Hash: 3f1f2e8
 * Build Date: 2019-05-22
Jul 02, 2019 10:13:56 AM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
INFO: LWJGL 2.9.3 context running on thread jME3 Main
 * Graphics Adapter: null
 * Driver Version: null
 * Scaling Factor: 1

This has been true since at least JME 3.1. Is there some way we can obtain this information on Linux?

Start at com.jme3.system.lwjgl.LwjglContext.printContextInitInfo and compare the Windows and Linux startup logs shown in the issue. Trace where the graphics adapter and driver version values come from on Linux; done means determining whether those values can be obtained and ensuring the startup output handles the result appropriately.