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PONicelyResynchronizingAjaxController does not work as expected
 

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  1. PONicelyResynchronizingAjaxController does not work as expected
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    <p>I need to get data from this <a href="http://web1.seattle.gov/courts/cpi/CaseList.aspx" rel="nofollow" title="web site">Web site</a>. Since it has AJAX calls I decided to use HtmlUnit for parsing. </p> <p>This is my code:</p> <pre><code>public class MainPage { final static String baseURI = "http://web1.seattle.gov/courts/cpi/CaseList.aspx"; final static WebClient webClient = new WebClient(BrowserVersion.CHROME); static HtmlPage currentPage = null; public static void main(String[] args) { try { webClient.setAjaxController(new NicelyResynchronizingAjaxController()); webClient.getOptions().setThrowExceptionOnFailingStatusCode(false); webClient.getOptions().setThrowExceptionOnScriptError(false); final HtmlPage mainPage = webClient.getPage(baseURI); final HtmlForm searchForm = mainPage.getFormByName("form1"); searchForm.getInputByName("rtbCaseNo").setValueAttribute("203123729"); HtmlPage resultPage = searchForm.getInputByName("btnSrchByCaseNo").click(); webClient.waitForBackgroundJavaScript(50000); System.out.println(resultPage.asText()); } catch (FailingHttpStatusCodeException | IOException e) { e.printStackTrace(); } finally { webClient.closeAllWindows(); } } </code></pre> <p>}</p> <p>Firstly, when I click submit button, it seems no AJAX call at all, I don't see anything like:</p> <pre><code>INFO: Re-synchronized call to http://web1.seattle.gov/courts/cpi/CastList.aspx </code></pre> <p>Secondly, I've got some exceptions from HtmlUnit:</p> <pre><code> INFO: Caught script exception ======= EXCEPTION START ======== EcmaError: lineNumber=[729] column=[0] lineSource=[null] name=[TypeError] sourceName=[http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43] message=[TypeError: Cannot read property "disabled" from undefined (http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43#729)] com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot read property "disabled" from undefined (http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43#729) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:684) at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:602) at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:616) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:591) at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptFunctionIfPossible(HtmlPage.java:985) at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeEventListeners(EventListenersContainer.java:177) at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeBubblingListeners(EventListenersContainer.java:237) at com.gargoylesoftware.htmlunit.javascript.host.Node.fireEvent(Node.java:804) at com.gargoylesoftware.htmlunit.javascript.host.Node.fireEvent(Node.java:738) at com.gargoylesoftware.htmlunit.html.HtmlElement$1.run(HtmlElement.java:869) at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:602) at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507) at com.gargoylesoftware.htmlunit.html.HtmlElement.fireEvent(HtmlElement.java:874) at com.gargoylesoftware.htmlunit.html.HtmlElement.doClickFireClickEvent(HtmlElement.java:1311) at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1253) at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1205) at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1160) at MainPage.main(MainPage.java:29) Caused by: net.sourceforge.htmlunit.corejs.javascript.EcmaError: TypeError: Cannot read property "disabled" from undefined (http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43#729) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3603) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3587) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3608) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:3624) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.undefReadError(ScriptRuntime.java:3634) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getObjectPropNoWarn(ScriptRuntime.java:1488) at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1233) at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:798) at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:105) at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:405) at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:309) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3031) at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:103) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$4.doRun(JavaScriptEngine.java:609) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:669) ... 18 more Enclosed exception: net.sourceforge.htmlunit.corejs.javascript.EcmaError: TypeError: Cannot read property "disabled" from undefined (http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43#729) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3603) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3587) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3608) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:3624) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.undefReadError(ScriptRuntime.java:3634) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getObjectPropNoWarn(ScriptRuntime.java:1488) at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1233) at script.Sys$WebForms$PageRequestManager$_onFormElementActive(http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43:729) at script.Sys$WebForms$PageRequestManager$_onFormElementClick(http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=wAKJQuapfi2h0tvgddshu6GwSBoo0uJ-Q4zq1fpZG1ZOiNZgZZNomCn_OChvdWzXkxwIbSpMmitsYmDHmDpi-_Muj2-QmYqFjgrU54gChUB4h0YeDFGq7JyV0GIClurbdmC9pRNWwqRbk5gkFzybU7XnF9F4YUtiRPHHsC0TgYUJHhHR0&amp;t=ffffffffdca80a43:751) at script(http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=GzSW1c3NKsncPwlvGy3qGT-vozDnuoTbJRITSlPr6OEXzpdb1saFCmLwjRyqYfH5pta6HhEtCCU0x1VKNwmwJGlYwl2L_LdE-PxNHQjfNmEnmdhuyKvS5W28hsds4a5GmaIHjebqkMQ1yQVwZheqwC9K9wwuMr2kLfxJsg2&amp;t=ffffffffdca80a43:47) at script(http://web1.seattle.gov/courts/CPI/ScriptResource.axd?d=GzSW1c3NKsncPwlvGy3qGT-vozDnuoTbJRITSlPr6OEXzpdb1saFCmLwjRyqYfH5pta6HhEtCCU0x1VKNwmwJGlYwl2L_LdE-PxNHQjfNmEnmdhuyKvS5W28hsds4a5GmaIHjebqkMQ1yQVwZheqwC9K9wwuMr2kLfxJsg2&amp;t=ffffffffdca80a43:2948) at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:798) at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:105) at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:405) at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:309) at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3031) at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:103) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$4.doRun(JavaScriptEngine.java:609) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:669) at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:602) at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:616) at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:591) at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptFunctionIfPossible(HtmlPage.java:985) at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeEventListeners(EventListenersContainer.java:177) at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeBubblingListeners(EventListenersContainer.java:237) at com.gargoylesoftware.htmlunit.javascript.host.Node.fireEvent(Node.java:804) at com.gargoylesoftware.htmlunit.javascript.host.Node.fireEvent(Node.java:738) at com.gargoylesoftware.htmlunit.html.HtmlElement$1.run(HtmlElement.java:869) at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:602) at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507) at com.gargoylesoftware.htmlunit.html.HtmlElement.fireEvent(HtmlElement.java:874) at com.gargoylesoftware.htmlunit.html.HtmlElement.doClickFireClickEvent(HtmlElement.java:1311) at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1253) at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1205) at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1160) at MainPage.main(MainPage.java:29) == CALLING JAVASCRIPT == function (e) { return handler.call(element, new Sys.UI.DomEvent(e)); } ======= EXCEPTION END ======== </code></pre> <p>So I guess, because of those exceptions while loading JS caused issue with JS running on client site or something. </p> <p>Any ideas?</p>
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    1. USMinh Le
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    1. COThis [question](http://stackoverflow.com/questions/17843521/get-the-changed-html-content-after-its-updated-by-javascript-htmlunit/19551145#19551145) might help
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      1. PONicelyResynchronizingAjaxController does not work as expected
      1. USMosty Mostacho
    2. COThanks! Actually, I went through your answer before posting this question.
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      1. PONicelyResynchronizingAjaxController does not work as expected
      1. USMinh Le
 

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