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org.eclipse.jetty.websocket.api.Session
java.lang.ClassNotFoundException: org.eclipse.jetty.websocket.api.Session	at java.net.URLClassLoader.findClass(URLClassLoader.java:600)	at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:777)	at java.lang.ClassLoader.loadClass(ClassLoader.java:750)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:326)	at java.lang.ClassLoader.loadClass(ClassLoader.java:731)	at java.lang.Class.getDeclaredMethodsImpl(Native Method)	at java.lang.Class.getDeclaredMethods(Class.java:916)	at com.gargoylesoftware.htmlunit.javascript.configuration.AbstractJavaScriptConfiguration.process(AbstractJavaScriptConfiguration.java:197)	at com.gargoylesoftware.htmlunit.javascript.configuration.AbstractJavaScriptConfiguration.getClassConfiguration(AbstractJavaScriptConfiguration.java:172)	at com.gargoylesoftware.htmlunit.javascript.configuration.AbstractJavaScriptConfiguration.buildUsageMap(AbstractJavaScriptConfiguration.java:79)	at com.gargoylesoftware.htmlunit.javascript.configuration.AbstractJavaScriptConfiguration.(AbstractJavaScriptConfiguration.java:59)	at com.gargoylesoftware.htmlunit.javascript.configuration.JavaScriptConfiguration.(JavaScriptConfiguration.java:597)	at com.gargoylesoftware.htmlunit.javascript.configuration.JavaScriptConfiguration.getInstance(JavaScriptConfiguration.java:613)	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.(JavaScriptEngine.java:133)	at com.gargoylesoftware.htmlunit.WebClient.init(WebClient.java:239)	at com.gargoylesoftware.htmlunit.WebClient.(WebClient.java:213)	at org.openqa.selenium.htmlunit.HtmlUnitDriver.newWebClient(HtmlUnitDriver.java:349)	at org.openqa.selenium.htmlunit.HtmlUnitDriver.createWebClient(HtmlUnitDriver.java:315)	at org.openqa.selenium.htmlunit.HtmlUnitDriver.(HtmlUnitDriver.java:192)	at org.openqa.selenium.htmlunit.HtmlUnitDriver.(HtmlUnitDriver.java:182)	at javax.portlet.tck.driver.BugTest.main(BugTest.java:52)