selenium not found

[Caleb Chang]

I watched the single sign on juice shop authentication video, and I am trying to follow along. I created a script using graal engine and copied the first line of the script from minute 2:40 of that video:

let By = Java.type('org.openqa.selenium.By')

When I run this, I get the following error: 

org.graalvm.polyglot.PolyglotException: TypeError: Access to host class org.openqa.selenium.By is not allowed or does not exist.

Any idea why I am unable to find the selenium Class? I have the selenium add-on. I am using java version 15.

[kingthorin+owaspzap]

Did you install the selenium add-on?

[Caleb Chang]

Wow, you guys respond fast!

Yes, I have the selenium add-on installed.

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[Caleb Chang]

By the way, it is possible that I am using java version 8. I have both java 15 and 8 installed

[Caleb Chang]

Is this happening to anyone else? I even uninstalled and reinstalled zap, but I still get the same issue

[thc...@gmail.com]

That's caused by an issue in the GraalVM JavaScript add-on.

If you are still using Java 8 you can select the Nashorn engine instead
(syntax is a little different though).

Best regards.

>>>> <https://groups.google.com/d/msgid/zaproxy-users/0f064fce-7804-4bce-aec6-02065ac190een%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>>
>

[Caleb Chang]

thx! Switching to nashorn engine worked!

[Volodymyr Molodets]

The issue still exists and I've been able to reproduce this on;
- W10 machine

- Java 8 Update 351 (64-bit) (8.0.3510.10)

- OWASP ZAP 2.11.1.

As soon as I try to upgrade OWASP ZAP from 2.11.1 to the latest version 2.12.0, the installation asks me to install the proper version of JRE SDK

Once installed, the issue shows up.

[Simon Bennetts]

You say you have "Java 8 Update 351 (64-bit) (8.0.3510.10)"

But as per the release notes, ZAP 2.12.0 requires a minimum of Java 11.

So you need to install Java 11 or greater.

Cheers,

Simon

[Volodymyr Molodets]

Yes, that's what I did next.

But after that I am unable to run even builtin standalone scripts on ZAP 2.12.0 and getting the same exception as the OP. PFB.

Here is the exception:

org.graalvm.polyglot.PolyglotException: TypeError: Access to host class org.openqa.selenium.By is not allowed or does not exist.org.graalvm.polyglot.PolyglotException: TypeError: Access to host class org.openqa.selenium.By is not allowed or does not exist.

Unfortunately, "Oracle Nashorn"  is not offered as Script Engine when I try to add a new script.

Any ideas how to overcome the access issue in the exception?

[thc...@gmail.com]

Which Java version did you install? Java 11 bundles Nashorn.

Best regards.

On 04/01/2023 12:09, Volodymyr Molodets wrote:
> Yes, that's what I did next.
>
> But after that I am unable to run even builtin standalone scripts on ZAP
> 2.12.0 and getting the same exception as the OP. PFB.[image: Screenshot
> 2023-01-04 140620.png]
>
> Here is the exception:
>

> *org.graalvm.polyglot.PolyglotException: TypeError: Access to host class

> org.openqa.selenium.By is not allowed or does not
> exist.org.graalvm.polyglot.PolyglotException: TypeError: Access to host

> class org.openqa.selenium.By is not allowed or does not exist.*

>
> Unfortunately, "Oracle Nashorn" is not offered as Script Engine when I try
> to add a new script.
>
> Any ideas how to overcome the access issue in the exception?
>
> [image: Screenshot 2023-01-04 140816.png]
>
> On Wednesday, January 4, 2023 at 1:44:45 PM UTC+2 psi...@gmail.com wrote:
>
>> You say you have "Java 8 Update 351 (64-bit) (8.0.3510.10)"
>> But as per the release notes

>> <https://www.zaproxy.org/docs/desktop/releases/2.12.0/>, ZAP 2.12.0

[Volodymyr Molodets]

This one below. 

Can you share the link for the one which is working for you?

[thc...@gmail.com]

Java 19 no longer includes Nashorn.

You can download Java 11 from:
https://adoptium.net/en-GB/temurin/releases/?version=11

(You need to choose your OS/arch.)

Best regards.

[Volodymyr Molodets]

It worked, thanks a lot!

[Pritish Thapa]

Hello,
I have installed JAVA 11, from the link that you have provided, but unfortunately, it is still not working!


P.S: I have attached the screenshots of the Java version and the issue that I am facing!


Any help will be appreciated!

Thank you!


Pritish Thapa

[thc...@gmail.com]

Check in Help > Support Info… which Java version is in use by ZAP.

You need to start ZAP with Java 11 to use/select Nashorn (e.g. edit the
bat file to use the correct path for Java 11, or uninstall Java 17).

Best regards.

[Pritish Thapa]

Hello everyone, if in case anyone facing an issue

'org.graalvm.polyglot.polyglotexception: typeerror: access to host class org.openqa.selenium.by is not allowed or does not exist.org.graalvm.polyglot.polyglotexception: typeerror: access to host class org.openqa.selenium.by is not allowed or does not exist.'

then install the JAVA 12 from this link (java 12)!


Thank me later.


Pritish Thapa

[thc...@gmail.com]

Java 12 does not include Nashorn, you would still be using Graal JS and
hitting exactly the same issue.

Best regards.

On 22/03/2023 06:58, Pritish Thapa wrote:
> Hello everyone, if in case anyone facing an issue
>
> 'org.graalvm.polyglot.polyglotexception: typeerror: access to host class
> org.openqa.selenium.by is not allowed or does not
> exist.org.graalvm.polyglot.polyglotexception: typeerror: access to host
> class org.openqa.selenium.by is not allowed or does not exist.'
>
> then install the JAVA 12 from this link (java 12

> <https://www.oracle.com/in/java/technologies/javase/jdk12-archive-downloads.html>
> )!

[Pritish Thapa]

Hello thc202,
Sorry to say but, JDK 12 does have  Nashorn, and I am using it right now without any issue!
You can try it too, once.


Thank you!


Pritish Thapa

[Pritish Thapa]

besides, it is not showing any kind of errors!

[kingthorin+owaspzap]

Could you provide the support info that was requested earlier?

[umar mehmood]

hi,

We are using openjdk v11, and ZAP v 2.13.0. and getting this error while authenticating through Java script with Graalljs engine.

" org.graalvm.polyglot.PolyglotException: TypeError: Access to host class org.openqa.selenium.By is not allowed or does not exist.org.graalvm.polyglot.PolyglotException: TypeError: Access to host class org.openqa.selenium.By is not allowed or does not exist."

Please advise..

Thank You

Umar

[thc...@gmail.com]

Update to 2.14:
https://www.zaproxy.org/blog/2023-10-12-zap-2-14-0/#graal-js-add-on-access

Best regards.