Tomcat 死锁了，找不到啥原因，求指导一下。

[1] Busy(96.8%) thread(22361/0x5759) stack of java process(22237) under user(root): "http-nio-8080-exec-7" #53 daemon prio=5 os_prio=0 tid=0x00007fa430251800 nid=0x5759 runnable [0x00007fa4135f9000] java.lang.Thread.State: RUNNABLE at org.springframework.core.SerializableTypeWrapper$TypeProxyInvocationHandler.invoke(SerializableTypeWrapper.java:220) at com.sun.proxy.$Proxy4.equals(Unknown Source) at org.springframework.util.ObjectUtils.nullSafeEquals(ObjectUtils.java:252) at org.springframework.core.ResolvableType.equals(ResolvableType.java:681) at org.springframework.util.ObjectUtils.nullSafeEquals(ObjectUtils.java:252) at org.springframework.core.ResolvableType.variableResolverSourceEquals(ResolvableType.java:719) at org.springframework.core.ResolvableType.equals(ResolvableType.java:683) at org.springframework.util.ConcurrentReferenceHashMap$Segment.findInChain(ConcurrentReferenceHashMap.java:571) at org.springframework.util.ConcurrentReferenceHashMap$Segment.getReference(ConcurrentReferenceHashMap.java:439) at org.springframework.util.ConcurrentReferenceHashMap.getReference(ConcurrentReferenceHashMap.java:238) at org.springframework.util.ConcurrentReferenceHashMap.get(ConcurrentReferenceHashMap.java:217) at org.springframework.core.ResolvableType.forType(ResolvableType.java:1018) at org.springframework.core.ResolvableType.forType(ResolvableType.java:998) at org.springframework.core.ResolvableType.getGenerics(ResolvableType.java:489) at org.springframework.core.ResolvableType.getGeneric(ResolvableType.java:451) at org.springframework.core.convert.TypeDescriptor.getElementTypeDescriptor(TypeDescriptor.java:305) at org.springframework.core.convert.TypeDescriptor.elementTypeDescriptor(TypeDescriptor.java:321) at org.springframework.core.convert.support.CollectionToArrayConverter.convert(CollectionToArrayConverter.java:66) at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:35) at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:178) at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:161) at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:93) at org.springframework.beans.TypeConverterSupport.doConvert(TypeConverterSupport.java:64) at org.springframework.beans.TypeConverterSupport.convertIfNecessary(TypeConverterSupport.java:47) at org.springframework.validation.DataBinder.convertIfNecessary(DataBinder.java:582) at org.springframework.web.method.annotation.AbstractNamedValueMethodArgumentResolver.resolveArgument(AbstractNamedValueMethodArgumentResolver.java:102) at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:79) at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:157) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:124) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:748) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:931) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:833) at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) - locked <0x00000006ce25c298> (a org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)