ScriptFunction being passed to JSObject, expected ScriptObjectMirror

[Jesse Schulman]

I did try running with -Dnashorn.apply2call=false when I saw the email for
that fix but it did not resolve the issue.

There is no exception thrown, but our JSObject.call method basically is
no-op as a result of not getting a ScriptObjectMirror, it effectively looks
like this:

        @Override
        public Object call(Object thiz, Object ... args) {
            if (args.length < 2 || !(args[0] instanceof ScriptObjectMirror)
|| !((ScriptObjectMirror) args[0]).isFunction() || !(args[1] instanceof
Integer))
                return gScriptEnvironment.getUndefined();

            // safely cast and call ScriptObjectMirror...
       }


I am continuing to work on reproducing it outside our application in a
simple way.  In the mean time if there's any other information I can share
besides a reproducing example, or suggestions on workarounds to try let me
know.

Thanks!
Jesse

On Wed, Aug 23, 2017 at 7:10 PM Sundararajan Athijegannathan <
sundararajan.athijegannathan at oracle.com> wrote:

> Hi,
>
> Sorry for the delayed response. We need more info to debug this - in
> particular, what is the exception (if any) thrown etc.
>
> I wonder if this is related to this recent apply-related fix ->
>
> http://mail.openjdk.java.net/pipermail/nashorn-dev/2017-August/006998.html
>
> -Sundar
>
> On 22/08/17, 3:43 AM, Jesse Schulman wrote:
> > This does not happen on the first run of the code but is consistently
> > happening on the 17th run after a restart and from that point forward is
> > broken until we restart.
> >
> > Attached is a broken and working call stack.
> >
> > I have tried to replicate what we are doing in a basic java reproducer
> but
> > have not been able to do so, given that I can consistently reproduce this
> > locally I am happy to take any suggested steps to gather more information
> > or to workaround/resolve the issue.
> >
> > Environment:
> > Java version 1.8.144
> > Engine created with "--no-java", "-strict", "--no-syntax-extensions",
> > "--language=es6", "--optimistic-types=true"  (also tried with
> > optimistic-types=false)
> > All evaluation done on the same engine via engine.eval(String, Bindings)
> > using a Bindings that was returned from engine.createBindings, each of
> the
> > "runs" described above took place in a different Bindings instance
> >
> > Thanks!
> > Jesse
>