Object#try(:squeeze!) raises an array index out of bounds exception #3668
Description
Using Active Support's Object#try method with String#squeeze raises a Java ArrayIndexOutOfBoundsException:
jruby-9.0.5.0 :003 > ' '.try(:squeeze!)
Java::JavaLang::ArrayIndexOutOfBoundsException: 0
from org.jruby.RubyString.squeeze_bang19(RubyString.java:4611)
from org.jruby.RubyString$INVOKER$i$squeeze_bang19.call(RubyString$INVOKER$i$squeeze_bang19.gen)
from org.jruby.internal.runtime.methods.JavaMethod$JavaMethodN.call(JavaMethod.java:729)
from org.jruby.RubyKernel.public_send(RubyKernel.java:1823)
from org.jruby.RubyKernel$INVOKER$s$0$0$public_send.call(RubyKernel$INVOKER$s$0$0$public_send.gen)
from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:273)
from org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:79)
from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:83)
from org.jruby.ir.instructions.CallBase.interpret(CallBase.java:414)
from org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:348)
from org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:77)
from org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:140)
from org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:126)
from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:273)
from org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:79)
from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:83)
... 122 levels...
from org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:196)
from org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:197)
from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:313)
from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:163)
from Users.ah.$_dot_rvm.rubies.jruby_minus_9_dot_0_dot_5_dot_0.bin.irb.invokeOther3:start(/Users/ah/.rvm/rubies/jruby-9.0.5.0/bin/irb)
from Users.ah.$_dot_rvm.rubies.jruby_minus_9_dot_0_dot_5_dot_0.bin.irb.RUBY$script(/Users/ah/.rvm/rubies/jruby-9.0.5.0/bin/irb:13)
from java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627)
from org.jruby.ir.Compiler$1.load(Compiler.java:111)
from org.jruby.Ruby.runScript(Ruby.java:817)
from org.jruby.Ruby.runScript(Ruby.java:809)
from org.jruby.Ruby.runNormally(Ruby.java:747)
from org.jruby.Ruby.runFromMain(Ruby.java:569)
from org.jruby.Main.doRunFromMain(Main.java:415)
from org.jruby.Main.internalRun(Main.java:310)
from org.jruby.Main.run(Main.java:239)
from org.jruby.Main.main(Main.java:201)
To reproduce, with Active Support installed:
require 'active_support'
require 'active_support/core_ext'
# Works:
# ' '.squeeze
# ' '.squeeze!
# ''.try(:squeeze)
# ''.try(:squeeze!)
#
# Does not work:
# ' '.try(:squeeze)
# ' '.try(:squeeze!)
' '.try(:squeeze)I was able reproduce this in JRuby 9.0.x.x and JRuby 1.7.x with Active Support 4.2 back to 3.2. It seems to be limited to the squeeze method.
Let me know if you need any other info.