Stringio#ungetc crashes JRuby in some cases
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Key: JRUBY-2659
URL: http://jira.codehaus.org/browse/JRUBY-2659
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.1.2
Environment: Latest JRuby 1.1.2+
Reporter: Vladimir Sizikov
Assignee: Vladimir Sizikov
Fix For: JRuby 1.1.3
ruby -rstringio -e "io = StringIO.new(); io.pos=2; io.ungetc(?A); p io.string"
#==> "\000A"
But for JRuby:
{noformat}
jruby -rstringio -e "io = StringIO.new(); io.pos=2; io.ungetc(?A); p io.string"
Exception in thread "main" java.lang.IndexOutOfBoundsException
at org.jruby.util.ByteList.set(ByteList.java:274)
at org.jruby.RubyStringIO.ungetc(RubyStringIO.java:772)
at org.jruby.RubyStringIOInvoker$ungetc_method_1_0.call(Unknown Source)
at
org.jruby.runtime.CallSite$InlineCachingCallSite.cacheAndCall(CallSite.java:149)
at
org.jruby.runtime.CallSite$InlineCachingCallSite.call(CallSite.java:356)
at ruby.__dash_e__.__file__(-e:1)
at ruby.__dash_e__.__file__(-e)
at ruby.__dash_e__.load(-e)
at org.jruby.Ruby.runScript(Ruby.java:520)
at org.jruby.Ruby.runNormally(Ruby.java:440)
at org.jruby.Ruby.runFromMain(Ruby.java:320)
at org.jruby.Main.run(Main.java:184)
at org.jruby.Main.run(Main.java:91)
at org.jruby.Main.main(Main.java:82)
{noformat}
This also crases the rubyspec run.
Will fix shortly.
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