Create empty environment?

[A. Sundararajan]

Hi,

You can start your application with the System property

     -Dnashorn.args=--no-java

This will avoid initializing properties needed for Java access 
("Packages", "Java", "java", "javax" etc.). Note that the script can 
access Java methods/properties of objects explicitly exposed via 
javax.script.ScriptContext/Bindings (if any). If those are also empty, 
then global scope gets nothing from Java.

Note this still defines certain extensions like 'load' , 'print' in 
global scope as well as "context" (required per jsr223 spec). If you 
want, you can manually delete these properties or assign undefined to 
these by writing a simple init script that is loaded upfront - before 
running the actual script.

Hope this helps,
-Sundar

On Tuesday 21 January 2014 10:45 AM, Peter Michaux wrote:
> Hi,
>
> When I create a new Nashorn script engine, it seems to come preloaded with globals like `print` which are not part of the ECMAScript standard. How can I create an "empty" environment that only has the globals defined in the standard?
>
> Thanks,
> Peter