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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: https://goo.gl/ctQ7Fs

  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.

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com.sun.faces.config.ConfigureListener
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java.lang.ClassNotFoundException: com.sun.faces.config.ConfigureListener 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 org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:998) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1494) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4474) at org.apache.catalina.core.StandardContext.start(StandardContext.java:5192) at com.sun.enterprise.web.WebModule.start(WebModule.java:341) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:989)