#!/usr/bin/env ruby

MyData = Struct.new(:value)

# Test 3: FAILS - Data.define with BOTH *args and **kwargs
def test_data_with_both_splats(*args, **kwargs)
  MyData.new(*args, **kwargs)
end

begin
  puts "✓ Test 3 - Data.define with both splats: #{test_data_with_both_splats("ok").value}"
rescue ArgumentError => e
  puts "✗ Test 3 - Data.define with both splats: #{e.class}: #{e.message}"
end

$ jruby blah.rb    
Unhandled Java exception: java.lang.ClassCastException: class org.jruby.RubyString cannot be cast to class org.jruby.RubyHash (org.jruby.RubyString and org.jruby.RubyHash are in module org.jruby.dist of loader 'app')
java.lang.ClassCastException: class org.jruby.RubyString cannot be cast to class org.jruby.RubyHash (org.jruby.RubyString and org.jruby.RubyHash are in module org.jruby.dist of loader 'app')
                            initialize at org/jruby/RubyStruct.java:537
                                  call at org/jruby/RubyStruct$INVOKER$i$initialize.gen:-1
                                  call at org/jruby/internal/runtime/methods/JavaMethod.java:841
                          cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:446
                                  call at org/jruby/runtime/callsite/CachingCallSite.java:92
                              callInit at org/jruby/RubyObject.java:274
                             newStruct at org/jruby/api/Create.java:487
                             newStruct at org/jruby/RubyStruct.java:339
                                  call at org/jruby/RubyStruct$StructMethods$INVOKER$s$newStruct.gen:-1
                   performIndirectCall at org/jruby/ir/targets/indy/InvokeSite.java:882
                                invoke at org/jruby/ir/targets/indy/InvokeSite.java:786
  ️❤ def test_data_with_both_splats #0 at blah.rb:7