Keyword method parameters cannot take a frozen hash #2511
Description
It seems that Jruby tries to mess (in some way or another) with the parameters hash that is passed to a method. If one passes those named parameters using a true hash, that it is frozen, Jruby complains it cannot modify a frozen hash.
Here's the smallest repro I could get:
class Foo
def self.test( arg1: "default" )
puts "arg1: #{arg1.inspect}"
end
end
normal_args = {arg1: "normal"}
frozen_args = {arg1: "frozen"}.freeze
Foo.test( normal_args ) #=> succeeds
Foo.test( frozen_args ) #=> bails out RuntimeError: can't modify frozen Hashwith mri 2.2.0:
arg1: "normal"
arg1: "frozen"with jruby-head (as of today):
arg1: "normal"
RuntimeError: can't modify frozen Hash
delete at org/jruby/RubyHash.java:1574
__script__ at /tmp/test.rb:11Oh, and BTW, the original error that I saw in my application somehow complained more loudly about it:
BUG: Got exception org.jruby.exceptions.RaiseException: (RuntimeError) can't modify frozen Hash but instr using(0:0) = recv_kw_arg(0, using) is not supposed to be raising exceptions!For what it's worth.