FULL PRODUCT VERSION :
java version "1.8.0_33"
Java(TM) SE Runtime Environment (build 1.8.0_33-b05)
Java HotSpot(TM) Client VM (build 25.33-b05, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux myhost 3.18.11+ #781 PREEMPT Tue Apr 21 18:02:18 BST 2015 armv6l GNU/Linux


A DESCRIPTION OF THE PROBLEM :
$ENV.PWD normally contains the current working directory. However, when the script is invoked with sudo, $ENV.PWD is undefined.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) create a file "pwd.js" with the following content:
print($ENV.PWD);

2) invoke it as usual:
jjs -scripting pwd.js

3) invoke it with sudo:
sudo jjs -scripting pwd.js

4) for comparison, print the working directory with bash:
sudo bash -c 'echo $PWD'


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The following output

/home/pi
/home/pi
/home/pi
ACTUAL -
The following output:

/home/pi
undefined
/home/pi

REPRODUCIBILITY :
This bug can be reproduced always.