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  1. ,
    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:

  2. ,

    This is thrown when the Java Virtual Machine (JVM) tries to load a particular class and the specified class cannot be found in the classpath. If you are using a Java version less than 8, upgrade because java.util.Base64 only comes with > Java 8.

Solutions on the web

via Liferay Issues by Albert Lee, 1 year ago
via by Unknown author, 2 years ago
via Liferay Issues by Albert Lee, 2 years 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(