java.lang.ClassFormatError: com/sun/faces/util/Util

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java.lang.ClassFormatError: com/sun/faces/util/Util
at com.sun.faces.config.ConfigureListener.release(ConfigureListener.java:1287)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3805)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4364)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4246)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)

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