[erlang-patches] trivial bug in jinterface

Nico Kruber <>
Fri Feb 1 11:13:33 CET 2013

On Friday 01 Feb 2013 09:58:54 Vlad Dumitrescu wrote:
> Hi!
> I found a small problem in jinterface. It has been around for a while now,
> it happens in a corner case that probably nobody ever uses.
> In OtpErlangTuple(OtpErlangObject[], int, int), when the size of the slice
> used is 0, then the elems fields remains uninitialized, it is the parameter
> that gets assigned.
> I used master as base, I hope it's still possible to do that.
> git fetch git://github.com/vladdu/otp.git tuple_constructor_bug
> https://github.com/vladdu/otp/compare/tuple_constructor_bug
> https://github.com/vladdu/otp/compare/tuple_constructor_bug.patch
> Given that there are no other tests for jinterface at this level, do you
> want me to write one for this case?
> best regards,
> Vlad

your branch is outdated so the diff is not clean, i.e. contains a lot of other 
-> please rebase your branch
see https://github.com/erlang/otp/wiki/Submitting-patches

it would probably also be good to base it on maint - but someone from the otp 
team needs to decide here :)

your commit though seems reasonable


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