严重: Failed to call onClose method of POJO end point for POJO of type [cn.xhbds.admin.locator.controllers.WsAlarmController]
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.tomcat.websocket.pojo.PojoEndpointBase.onClose(PojoEndpointBase.java:103)
	at org.apache.tomcat.websocket.WsSession.fireEndpointOnClose(WsSession.java:535)
	at org.apache.tomcat.websocket.WsSession.doClose(WsSession.java:481)
	at org.apache.tomcat.websocket.WsSession.close(WsSession.java:445)
	at org.apache.tomcat.websocket.WsSession.close(WsSession.java:439)
	at cn.xhbds.admin.locator.controllers.WsAlarmController.error(WsAlarmController.java:110)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.tomcat.websocket.pojo.PojoEndpointBase.onError(PojoEndpointBase.java:130)
	at org.apache.tomcat.websocket.pojo.PojoEndpointBase.handleOnOpenOrCloseError(PojoEndpointBase.java:90)
	at org.apache.tomcat.websocket.pojo.PojoEndpointBase.doOnOpen(PojoEndpointBase.java:77)
	at org.apache.tomcat.websocket.pojo.PojoEndpointServer.onOpen(PojoEndpointServer.java:64)
	at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.init(WsHttpUpgradeHandler.java:133)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.shiro.UnavailableSecurityManagerException: No SecurityManager accessible to the calling code, either bound to the org.apache.shiro.util.ThreadContext or as a vm static singleton.  This is an invalid application configuration.
	at org.apache.shiro.SecurityUtils.getSecurityManager(SecurityUtils.java:123)
	at org.apache.shiro.subject.Subject$Builder.<init>(Subject.java:627)
	at org.apache.shiro.SecurityUtils.getSubject(SecurityUtils.java:56)
	at cn.xhbds.admin.locator.controllers.WsAlarmController.end(WsAlarmController.java:91)
	... 26 more