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This exception has no message.
java.lang.NullPointerException: 	at org.exolab.castor.mapping.Mapping.loadMapping(Mapping.java:430)	at com.avaya.mvcs.proxy.CstaUnmarshaller.setXMLMap(CstaUnmarshaller.java:162)	at com.avaya.mvcs.proxy.CstaUnmarshaller.setBackwardCompatibilityMap(CstaUnmarshaller.java:126)	at com.avaya.mvcs.proxy.CstaUnmarshallerNode.configure(CstaUnmarshallerNode.java:307)	at com.avaya.mvcs.proxy.Pipeline.configure(Pipeline.java:173)