From: adamon@... (Damon)
Date: 2002-08-04T14:16:57+09:00
Subject: Re: JRuby changes breaking code?

Thanks!  Much obliged.

Damon

Anders Bengtsson <ndrsbngtssn@yahoo.se> wrote in message news:<1028373734.1727.17.camel@spinoza>...
> A few minutes later: It turned out it wasn't a bug in JRuby at all. But
> the exception isn't as clear as it can be.
> 
> > > Exception in thread "main" java.lang.ClassCastException:
> > > org.jruby.RubyRange
> > >         at org.jruby.javasupport.JavaUtil.convertRubyToJava(JavaUtil.java:163)
> > >         at org.jruby.Ruby.evalScript(Ruby.java:203)
> > >         at Java2Ruby.main(Java2Ruby.java:33)
> 
> This instead is where the error is:
> 
> > >                 String rubySource = "listContents = []\n" +
> > >                         "(1..9).each { |x| listContents << " +
> > >                         "(\"cat number \" + x.to_s)}\n";
> 
> The each() will here return (1..9), which causes the classcast exception
> for RubyRange.
> I guess the intended code has an extra row at the end, like this:
> 
> String rubySource = "listContents = []\n" +
> 			"(1..9).each { |x| listContents << " +
> 			"(\"cat number \" + x.to_s)}\n" +
> 			"listContents\n";
> 
> /Anders