[Webtest] scriptStep doesn't work

[Alex Ignatov]

I get this error whenever I try to use scriptStep with javascript:

Error invoking script: java.lang.ClassNotFoundException:
org.apache.bsf.engines.javascript.JavaScriptEngine

Here's the code I'm using:

                        <scriptStep description="submit a form"
language="javascript">
                                document.MainForm.submit();
                        </scriptStep>

Anyone know a solution?

Thanks,
Alex