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java.lang.ClassCastException: java.util.ArrayList	at net.jforum.context.web.WebRequestContext.getParameter(WebRequestContext.java:335)	at net.jforum.view.forum.common.PostCommon.fillPostFromRequest(PostCommon.java:302)	at net.jforum.view.forum.common.PostCommon.fillPostFromRequest(PostCommon.java:291)	at net.jforum.view.forum.PostAction.insertSave(PostAction.java:1025)	at sun.reflect.GeneratedMethodAccessor97.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at net.jforum.Command.process(Command.java:125)	at net.jforum.JForum.processCommand(JForum.java:225)	at net.jforum.JForum.service(JForum.java:207)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at net.jforum.util.legacy.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:59)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)	at java.lang.Thread.run(Unknown Source)