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  1. ,
    Expert tip

    You might've forgot to add a dependency or it's written wrong. Also, you might be using incompatible versions of Java and Hibernate. More on this here: https://goo.gl/SjSlRA

  2. ,

    You are not deploying the oracle driver with the application. Place the driver jars in a shared or library extension folder of your application server. (You should go with option one or two though

java.lang.ClassNotFoundException: org.apache.commons.io.IOUtils	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)	at org.archive.crawler.settings.XMLSettingsHandler.writeSettingsObject(XMLSettingsHandler.java:260)	at org.archive.crawler.settings.XMLSettingsHandler.writeSettingsObject(XMLSettingsHandler.java:208)	at org.archive.crawler.settings.XMLSettingsHandler.copySettings(XMLSettingsHandler.java:360)	at org.archive.crawler.admin.CrawlJobHandler.createSettingsHandler(CrawlJobHandler.java:889)	at org.archive.crawler.admin.CrawlJobHandler.createNewJob(CrawlJobHandler.java:781)	at org.archive.crawler.admin.CrawlJobHandler.newJob(CrawlJobHandler.java:730)	at org.apache.jsp.new_jsp._jspService(new_jsp.java:185)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:210)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)	at org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:342)	at org.archive.crawler.admin.ui.RootFilter.doFilter(RootFilter.java:67)	at org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)	at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)	at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)	at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)	at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)	at org.mortbay.http.HttpServer.service(HttpServer.java:879)	at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)	at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)	at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)	at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:218)	at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:300)	at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)