NKF.guess crashes JRuby in some cases
-------------------------------------
Key: JRUBY-4417
URL: http://jira.codehaus.org/browse/JRUBY-4417
Project: JRuby
Issue Type: Bug
Components: Extensions
Affects Versions: JRuby 1.4
Reporter: Vladimir Sizikov
Assignee: Vladimir Sizikov
At least on Windows, when pure-JRE is installed from java.com, such JRE
installation doesn't have charsets.jar, and doing NKF.guess crashes JRuby:
{noformat}
# jruby -rnkf -e "NKF.guess('vvs')"
null:-1:in `forName': java.nio.charset.UnsupportedCharsetException: x-JISAutoDet
ect
from RubyNKF.java:128:in `guess'
from org/jruby/RubyNKF$s_method_1_0$RUBYINVOKER$guess.gen:-1:in `call'
from CachingCallSite.java:310:in `cacheAndCall'
from CachingCallSite.java:149:in `call'
from -e:1:in `__file__'
from -e:-1:in `load'
from Ruby.java:628:in `runScript'
from Ruby.java:550:in `runNormally'
from Ruby.java:396:in `runFromMain'
from Main.java:272:in `run'
from Main.java:117:in `run'
from Main.java:97:in `main'
{noformat}
We should print out some warning and fail gracefully somehow, maybe even just
when require 'nkf' is performed.
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