private String getRequestMethod(Object[] args) {
        final Map<?, ?> message = getMap(args);
        if (message != null) {
            String requestMethod = (String) message.get("org.apache.cxf.request.method");

            return requestMethod != null ? requestMethod : "unknown";
        }
        return "unknown";
    }
Instantiates a new Cxf client handle message method interceptor.

@param traceContext the trace context
@param descriptor   the descriptor
agent-module/plugins/cxf/src/main/java/com/navercorp/pinpoint/plugin/cxf/interceptor/CxfClientHandleMessageMethodInterceptor.java