[Netrexx-develop] null foo bar

[Jason M. <agr...@gm...>]

-- NetRexx 4.01-GA Language Reference
-- example at top of page 54
-- changed 'foo' to null on line two
-- nrc does compile it
-- running it causes Exception in thread "main" 
java.lang.NullPointerException
-- I ask because some methods can return null whether as Rexx or as Object
-- should docs warn about this?
x='?'
x[null, 'bar']='OK'
say x['foo', 'bar']
y=x['foo']
say y['bar']