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  1. ,
    Expert tip

    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.

  2. ,
    Expert tip

    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:

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via Liferay Issues by Albert Lee, 1 year ago
via by Unknown author, 2 years ago
via Liferay Issues by Albert Lee, 1 year ago
via Liferay Issues by Albert Lee, 2 years ago
java.lang.ClassNotFoundException: org.apache.jsp.html.taglib.ui.icon.page_jsp	at$	at$	at	at org.apache.jasper.servlet.JasperLoader.loadClass(	at org.apache.jasper.servlet.JasperLoader.loadClass(	at org.wildfly.extension.undertow.deployment.UndertowJSPInstanceManager.newInstance(	at org.apache.jasper.servlet.JspServletWrapper.getServlet(	at org.apache.jasper.servlet.JspServletWrapper.service(	at org.apache.jasper.servlet.JspServlet.serviceJspFile(	at org.apache.jasper.servlet.JspServlet.service(	at javax.servlet.http.HttpServlet.service(	at io.undertow.servlet.handlers.ServletHandler.handleRequest(	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(	at io.undertow.servlet.core.ManagedFilter.doFilter(	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(	at io.undertow.servlet.handlers.FilterHandler.handleRequest(	at	at io.undertow.jsp.JspFileHandler.handleRequest(