Exception in thread "main" java.lang.NullPointerException

[SirRenix]

Exception in thread "main" java.lang.NullPointerException
at org.openhab.binding.greeair.internal.GreeTest.main(GreeTest.java:48)

[Sorin-1]

I managed to run GreeTest.java properly on 32-bit windows7 machine. I have installed JDK by jdk-8u111-nb-8_2-windows-i586.exe, JRE by JavaSetup8u321.exe, NetBeans by netbeans-8.0.1-netbeans-8.0.1-201408251540-javase.zip. I have also unsuccessfully tried using Notepad++ and copied com.google.gson_2.7.0.v20170129-0911.jar to "internal" subdir... Patched PATH and other variables.. But it runs only under NetBeans.
Here is the result from NB console:
run:
Pow = 1, Mod = 4, SetTem = 20, WdSpd = 2, Air = 0, Blo = 0, Health = 1, SwhSlp = 0, Lig = 0, SwingLfRig = 2, SwUpDn = 0, Quiet = 0, Tur = 0, StHt = 0, TemUn = 0, HeatCoolType = 0, TemRec = 0, SvSt = 0, NoiseSet = 0,
Pow = 1, Mod = 4, SetTem = 20, WdSpd = 2, Air = 0, Blo = 0, Health = 1, SwhSlp = 0, Lig = 0, SwingLfRig = 2, SwUpDn = 0, Quiet = 0, Tur = 0, StHt = 0, TemUn = 0, HeatCoolType = 0, TemRec = 0, SvSt = 0, NoiseSet = 0,
СБОРКА УСПЕШНО ЗАВЕРШЕНА (общее время: 1 минута 19 секунды)