[perl #123969] NullPointerException on jvm for same CStruct in CStruct

[Christian Bartolomaeus via RT]

Hmm, actually the second NPE is still there:

$ perl6-j -e 'class Foo is repr<CStruct> { has int32 $.idontcare; has Foo $.bar 
}; my $a = Foo.new; say $a.bar'
java.lang.NullPointerException
  in block <unit> at -e:1