FULL PRODUCT VERSION :
java version "1.8.0_66"
Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux 4.3.0-1-amd64 #1 SMP Debian 4.3.3-2 (2015-12-17) x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
returned Objects cannot be used in Object.defineProperties
(e.g. run with jjs)
-----
 var x = loadWithNewGlobal({script:'({get:function(){return 1;}})',name:'x'});
 var o = {};
 Object.defineProperty(o,'x',x);
-----
bug1.js:3 TypeError: [object Object] is not an Object

returned Functions cannot be used in Object.defineProperties
-----
 var x = loadWithNewGlobal({script:'(function(){return 1;})',name:'x'});
 var o = {};
 Object.defineProperty(o,'x',{get:x});
-----
bug2.js:3 TypeError: function(){return 1;} is not a function

returned Function cannot be directly used as SAM
-----
 var x = loadWithNewGlobal({script:'(function(){return 1;})',name:'x'});
 javax.swing.SwingUtilities.invokeLater(x);
-----
Exception in thread "main" java.lang.ClassCastException: Cannot cast jdk.nashorn.api.scripting.ScriptObjectMirror to java.lang.Runnable


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
*save one of the examples above as textfile
*run jjs <file>


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No error
ACTUAL -
TypeError: [object Object] is not an Object


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
class Bug{
  public static void main(String[] ar) throws Exception{
    new javax.script.ScriptEngineManager().getEngineByName("nashorn").eval(
      "var x = loadWithNewGlobal({script:'(function(){print(\"X\");})',name:'x'});\n"+
      "javax.swing.SwingUtilities.invokeLater(x);");
  }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
*No workaround found for Object.defineProperties
*for SAM: use Constructor, or wrapper function