如何克服HTMLUnit ScriptException？

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如何克服HTMLUnit ScriptException？

box.setText(link.toString());
client.waitForBackgroundJavaScriptStartingBefore(10000);
box.dblClick(); //this line cause the exception
Exception in thread "main" ======= EXCEPTION START ========
EcmaError: lineNumber=[0] column=[0] lineSource=[function () {] name=[ReferenceError] sourceName=[onclick event for HtmlDivision[<div class="_119 stat_elem focus_target mtm mbl _5bsm _6dh _51z6" id="u_0_k" data-location="maincolumn" onclick="Bootloader.loadComponents(&quot;ComposerXControllerBootload&quot;, emptyFunction);">] in https://www.facebook.com/?_fb_noscript=1] message=[ReferenceError: "Bootloader" is not defined.]
com.gargoylesoftware.htmlunit.ScriptException: ReferenceError: "Bootloader" is not defined.
    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.executeEventHandler(EventListenersContainer.java:210)
    at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeBubblingListeners(EventListenersContainer.java:230)
    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.dblClick(HtmlElement.java:1351)
    at com.gargoylesoftware.htmlunit.html.HtmlElement.dblClick(HtmlElement.java:1326)
    at prototype.Profile.postLinkOnWall(Profile.java:225)
    at html.Log.findNext(Log.java:150)
    at prototype.Prtp.main(Prtp.java:49)
Caused by: net.sourceforge.htmlunit.corejs.javascript.EcmaError: ReferenceError: "Bootloader" is not defined.
    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.notFoundError(ScriptRuntime.java:3657)
    at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.nameOrFunction(ScriptRuntime.java:1749)
    at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.name(ScriptRuntime.java:1690)
    at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1622)
    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.host.EventHandler.call(EventHandler.java:81)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$4.doRun(JavaScriptEngine.java:609)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:669)
    ... 21 more
Enclosed exception: 
net.sourceforge.htmlunit.corejs.javascript.EcmaError: ReferenceError: "Bootloader" is not defined.
    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.notFoundError(ScriptRuntime.java:3657)
    at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.nameOrFunction(ScriptRuntime.java:1749)
    at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.name(ScriptRuntime.java:1690)
    at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1622)
    at script.onclick(onclick event for HtmlDivision[<div class="_119 stat_elem focus_target mtm mbl _5bsm _6dh _51z6" id="u_0_k" data-location="maincolumn" onclick="Bootloader.loadComponents(&quot;ComposerXControllerBootload&quot;, emptyFunction);">] in https://www.facebook.com/?_fb_noscript=1)
    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.host.EventHandler.call(EventHandler.java:81)
    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.executeEventHandler(EventListenersContainer.java:210)
    at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeBubblingListeners(EventListenersContainer.java:230)
    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.dblClick(HtmlElement.java:1351)
    at com.gargoylesoftware.htmlunit.html.HtmlElement.dblClick(HtmlElement.java:1326)
    at prototype.Profile.postLinkOnWall(Profile.java:225)
    at html.Log.findNext(Log.java:150)
    at prototype.Prtp.main(Prtp.java:49)