你好，我在使用websocket 创建链接的时候报错了，该怎么办？

Question

14-Jul-2018 17:13:49.314 SEVERE [http-nio-8080-exec-5] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [springServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.socket.server.HandshakeFailureException: Uncaught failure for request http://nihao.domain.com/chartbot?userid=1111&snumber=AAAAAAAAAAAA&token=dddd-dddd-oooo-oooo; nested exception is java.lang.NullPointerException] with root cause java.lang.NullPointerException at java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011) at java.util.concurrent.ConcurrentHashMap.putAll(ConcurrentHashMap.java:1084) at org.springframework.web.socket.adapter.AbstractWebSocketSession.<init>(AbstractWebSocketSession.java:57)问题太长看图片吧