FULL PRODUCT VERSION :
java version "1.6.0_23"
Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux 2.6.38-10-generic-pae #46-Ubuntu SMP Tue Jun 28 16:54:49 UTC 2011 i686 i686 i386 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
This javascript expression works with jdk1.6.0_22 but will not work with jdk1.6.0_23 and 1.6.0_26 :

var v = {get value() {return 3;}};

with jdk1.6.0_23, this expression will throw the following exception :

Exception in thread "main" javax.script.ScriptException: sun.org.mozilla.javascript.internal.EvaluatorException: missing : after property id (<Unknown source>#1) in <Unknown source> at line number 1

REGRESSION. Last worked in version 6

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the following code and run it :

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;

public class JsRegression {
  public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("ecmascript");

    System.err.println("ENGINE VERSION " + engine.getFactory().getEngineVersion());
    engine.eval("var v = {get value() {return 3;}};");
  }
}


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
with jdk1.6.0_22 this program succeeds :

$> java JsRegression
ENGINE VERSION 1.6 release 2
ACTUAL -
with jdk1.6.0_26 (and also jdk1.6.0_23) this program fails :

$>java JsRegression
ENGINE VERSION 1.6 release 2
Exception in thread "main" javax.script.ScriptException: sun.org.mozilla.javascript.internal.EvaluatorException: missing : after property id (<Unknown source>#1) in <Unknown source> at line number 1
        at com.sun.script.javascript.RhinoScriptEngine.eval(RhinoScriptEngine.java:110)
        at com.sun.script.javascript.RhinoScriptEngine.eval(RhinoScriptEngine.java:124)
        at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:247)
        at JsRegression.main(JsRegression.java:10)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;

public class JsRegression {
  public static void main(String[] args) throws Exception {
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("ecmascript");

    System.err.println("ENGINE VERSION " + engine.getFactory().getEngineVersion());
    engine.eval("var v = {get value() {return 3;}};");
  }
}
---------- END SOURCE ----------