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    jsp-api and servlet-api jars must NOT be deployed by your web app. They should be marked as provided but not deployed by your app.

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    The server rejects all jars that already belong to the server runtime (such as tomcat-**.jar, servlet**.jar). Consider substituting the CORS filter you're using for this one: https://goo.gl/ctQ7Fs

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via liferay.com by Unknown author, 1 year ago
org.apache.jsp.html.portlet.dockbar.view_jsp
java.lang.ClassNotFoundException: org.apache.jsp.html.portlet.dockbar.view_jsp	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)	at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)	at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:143)	at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:172)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:96)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:605)	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:544)