exception
C:\Develop\jruby>jruby -v
jruby 1.6.0.RC2 (ruby 1.8.7 patchlevel 330) (2011-02-22 b1be236) (Java HotSpot(TM) Client VM 1.6.0_16) [Windows XP-x86-java]
OSEnvironment.java:82:in `getAsMapOfRubyStrings': java.lang.NullPointerException
from OSEnvironment.java:52:in `getEnvironmentVariableMap'
from RubyGlobal.java:340:in `defineGlobalEnvConstants'
from RubyGlobal.java:319:in `createGlobals'
from Ruby.java:1069:in `init'
from Ruby.java:182:in `newInstance'
from Main.java:182:in `internalRun'
from Main.java:164:in `run'
from Main.java:148:in `run'
from Main.java:128:in `main'
C:\Develop\jruby>