Hi all I'm trying to run a jsfunit test using arquillian, I'm geting next exception. The problem is while it is parsing some css file, but is no enough information about the file and the error

Caused by: com.gargoylesoftware.htmlunit.ScriptException: Index: 0, Size: 0
          at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:601)
          at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:537)
          at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:538)
          at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:499)
          at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:970)
          at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:363)
          at com.gargoylesoftware.htmlunit.html.HtmlScript$1.execute(HtmlScript.java:235)
          at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:245)
          at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:578)
          at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
          at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:536)
          at org.cyberneko.html.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1136)
          at org.cyberneko.html.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1038)
          at org.cyberneko.html.filters.DefaultFilter.endElement(DefaultFilter.java:206)
          at org.cyberneko.html.filters.NamespaceBinder.endElement(NamespaceBinder.java:329)
          at org.cyberneko.html.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:2999)
          at org.cyberneko.html.HTMLScanner$ContentScanner.scan(HTMLScanner.java:1991)
          at org.cyberneko.html.HTMLScanner.scanDocument(HTMLScanner.java:895)
          at org.cyberneko.html.HTMLConfiguration.parse(HTMLConfiguration.java:499)
          at org.cyberneko.html.HTMLConfiguration.parse(HTMLConfiguration.java:452)
          at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
          at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.parse(HTMLParser.java:765)
          at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:211)
          at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:165)
          at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:225)
          at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:108)
          at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:429)
          at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:307)
          at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:369)
          at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:354)
          at org.jboss.jsfunit.framework.SimpleInitialRequestStrategy.doInitialRequest(SimpleInitialRequestStrategy.java:48)
          at org.jboss.jsfunit.framework.WebClientSpec.doInitialRequest(WebClientSpec.java:259)
          at org.jboss.jsfunit.jsfsession.JSFSession.<init>(JSFSession.java:81)
          at org.jboss.jsfunit.arquillian.container.JSFUnitSessionFactory.createJSFSession(JSFUnitSessionFactory.java:107)
          at org.jboss.jsfunit.arquillian.container.JSFUnitSessionFactory.findJSFSession(JSFUnitSessionFactory.java:92)
          at org.jboss.jsfunit.arquillian.container.JSFUnitSessionFactory.getJSFServerSession(JSFUnitSessionFactory.java:70)
          at org.jboss.jsfunit.arquillian.container.JSFUnitTestEnricher.resolve(JSFUnitTestEnricher.java:84)
          ... 134 more
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
          at java.util.ArrayList.RangeCheck(ArrayList.java:547)
          at java.util.ArrayList.get(ArrayList.java:322)
          at com.steadystate.css.dom.CSSRuleListImpl.item(CSSRuleListImpl.java:73)
          at com.gargoylesoftware.htmlunit.javascript.host.css.CSSRuleList.get(CSSRuleList.java:130)
          at net.sourceforge.htmlunit.corejs.javascript.ScriptableObject.getProperty(ScriptableObject.java:1991)
          at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getObjectIndex(ScriptRuntime.java:1565)
          at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getObjectIndex(ScriptRuntime.java:1550)

Here is my code

  @Deployment
   public static WebArchive createDeployment() {
             ZipFile existingZipFile;
          try {
                    existingZipFile = new ZipFile("target/newmedia.war");
                       WebArchive war = ShrinkWrap.create(ZipImporter.class, "newmedia.war")
                   .importFrom(existingZipFile)
                   .as(WebArchive.class);

                       System.out.println(war.toString(true)); // for debugging
                          return war;
          } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
          }



      return null;
   }


   @Test
   @InitialPage("/sections/explore/index.jsf")
   @BrowserVersion(Browser.FIREFOX_3_6)
   public void testInitialPage(JSFServerSession server, JSFClientSession client) throws IOException
   {
       client.getContentPage().getEnclosingWindow().getWebClient().setJavaScriptEnabled(false);
       client.setValue("filters:text_anno", "spiderman");
       Element el =client.getElement("filters:searchButton");
       client.click("filters:searchButton");



       System.out.println(server.getManagedBeanValue("#{searchResults.numFound}"));

      Assert.assertFalse("", (Long)server.getManagedBeanValue("#{searchResults.numFound}")>0);
   }