Re: [HtmlUnit] How to understand JavaScript errors

[Mike B. <mb...@Ga...>]

Hi Cort,

Which version of HtmlUnit are you using?  JavaScriptEngine.java has 
changed on just about every pre-release so I need to know what version 
you are using so that I can see what code is on line 153.  In the 
current code base, line 153 is a close curly brace so I'd guess that 
wasn't causing the exception ;-)

If you are able to send the html that caused it to blow up then that 
would be very helpful as well.

-- 
Mike Bowler
Principal, Gargoyle Software Inc.
Voice: (416) 822-0973 | Email  : mb...@Ga...
Fax  : (416) 822-0975 | Website: http://www.GargoyleSoftware.com


Cort Schaefer wrote:

> I have been playing with HtmlUnit all day and have been able to do a 
> few simple tests, but am having a problem with a page that is doing 
> some javascript validation before the form can be submitted.  I get 
> the following stack trace which does not help me much:
>
> <stacktrace><![CDATA[Exception 
> class=[org.mozilla.javascript.JavaScriptException]com.gargoylesoftware.htmlunit.ScriptException: 
> java.lang.NullPointerException  at 
> com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:153) 
> at 
> com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavascriptIfPossible(HtmlPage.java:722)   
> at 
> com.gargoylesoftware.htmlunit.html.HtmlAnchor.click(HtmlAnchor.java:69)      
> at com.seamlessweb.htmlunit.LoginTest.test_Order(LoginTest.java:141)
>
> I am able to use the page without any issues us IE 6, which is what I 
> set the WebClient browser version to.  I had a few other problems with 
> the syntax of select objects (form.selectobject.options[index].value 
> did not appear to work), but was able to fumble through those with the 
> information in the exceptions.  Unfortunately this exception does not 
> give me a line or anything to give me a hint as to where it is having 
> a problem.
>
> Any assistance would be much appreciated.
>
> Cort
>