Message1042

I've got jython 2.2a1 release installed on a linux
fedora core 3 box.

if the classpath passed to jython, by means of the
environment variable  CLASSPATH, contains empty element
("::") then jython interpreter won't initialize
properly but terminate imediatelly. 

Though the problem is avoidable making sure that there
is not such empty elements, since the jvm (and I
believe the majority of Java programs) do simply ignore
them and the error message is far from informative, I
do classify it as a bug.

To reproduce:

$ export CLASSPATH=:/tmp
$ jython
couldn't open registry file: /home/valentin/.jython
Jython 2.2a1 on java1.4.2_08 (JIT: null)
error importing site
Traceback (innermost last):
  File "/usr/local/share/jython-2.2a1/Lib/site.py",
line 66, in ?
AttributeError: java package 'sys' has no attribute
'modules'

However the following "equivalent" CP does not trigger it.
$ export CLASSPATH=/tmp