请教一个websphere里blocked问题

Question

最近遇到websphere里blocked问题，请大家帮帮忙看一看啊，这是什么原因引起的呢
State
Blocked
Monitor
Waiting for Monitor Lock on sun/misc/Launcher$AppClassLoader@0x000000000185E560/0x000000000185E56C
Java Stack
at java/lang/ClassLoader.loadClass(ClassLoader.java:626(Compiled Code))
at org/eclipse/osgi/framework/internal/core/BundleLoader.findClass(BundleLoader.java:351(Compiled Code))
at org/eclipse/osgi/framework/internal/core/BundleLoader.findClass(BundleLoader.java:347(Compiled Code))
at org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader.loadClass(DefaultClassLoader.java:79(Compiled Code))
at java/lang/ClassLoader.loadClass(ClassLoader.java:626(Compiled Code))
at java/lang/Class.forNameImpl(Native Method)
at java/lang/Class.forName(Class.java:172(Compiled Code))
at java/lang/Class.getDeclaredMethod(Class.java:587(Compiled Code))
at org/springframework/core/annotation/AnnotationUtils.findAnnotation(AnnotationUtils.java:133(Compiled Code))
at org/springframework/web/method/HandlerMethod.getMethodAnnotation(HandlerMethod.java:180(Compiled Code))
at org/springframework/web/servlet/mvc/method/annotation/ServletInvocableHandlerMethod. (ServletInvocableHandlerMethod.java:64(Compiled Code))
at org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.createRequestMappingMethod(RequestMappingHandlerAdapter.java:640(Compiled Code))
at org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:606(Compiled Code))
at org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578(Compiled Code))
at org/springframework/web/servlet/mvc/method/AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80(Compiled Code))
at org/springframework/web/servlet/DispatcherServlet.doDispatch(DispatcherServlet.java:876(Compiled Code))
at org/springframework/web/servlet/DispatcherServlet.doService(DispatcherServlet.java:852(Compiled Code))
at org/springframework/web/servlet/FrameworkServlet.processRequest(FrameworkServlet.java:882(Compiled Code))
at org/springframework/web/servlet/FrameworkServlet.doPost(FrameworkServlet.java:789(Compiled Code))
at javax/servlet/http/HttpServlet.service(HttpServlet.java:711(Compiled Code))
at javax/servlet/http/HttpServlet.service(HttpServlet.java:831(Compiled Code))
at com/ibm/ws/webcontainer/servlet/ServletWrapper.service(ServletWrapper.java:1607(Compiled Code))
at com/ibm/ws/webcontainer/servlet/ServletWrapper.service(ServletWrapper.java:1597(Compiled Code))
at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:98(Compiled Code))
at com/trustee/common/SessionFilter.doFilter(SessionFilter.java:120(Compiled Code))
at com/ibm/ws/webcontainer/filter/FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188(Compiled Code))
at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:116(Compiled Code))
at org/springframework/web/filter/CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88(Compiled Code))
at org/springframework/web/filter/OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76(Compiled Code))
at com/ibm/ws/webcontainer/filter/FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188(Compiled Code))
at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:116(Compiled Code))
at org/springframework/orm/hibernate4/support/OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:119(Compiled Code))
at org/springframework/web/filter/OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76(Compiled Code))
at com/ibm/ws/webcontainer/filter/FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188(Compiled Code))
at com/ibm/ws/webcontainer/filter/WebAppFilterChain.doFilter(WebAppFilterChain.java:116(Compiled Code))
at com/ibm/ws/webcontainer/filter/WebAppFilterChain._doFilter(WebAppFilterChain.java:77(Compiled Code))
at com/ibm/ws/webcontainer/filter/WebAppFilterManager.doFilter(WebAppFilterManager.java:849(Compiled Code))
at com/ibm/ws/webcontainer/servlet/ServletWrapper.handleRequest(ServletWrapper.java:934(Compiled Code))
at com/ibm/ws/webcontainer/servlet/ServletWrapper.handleRequest(ServletWrapper.java:502(Compiled Code))
at com/ibm/ws/webcontainer/servlet/ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179(Compiled Code))
at com/ibm/ws/webcontainer/servlet/CacheServletWrapper.handleRequest(CacheServletWrapper.java:91(Compiled Code))
at com/ibm/ws/webcontainer/WebContainer.handleRequest(WebContainer.java:864(Compiled Code))
at com/ibm/ws/webcontainer/WSWebContainer.handleRequest(WSWebContainer.java:1583(Compiled Code))
at com/ibm/ws/webcontainer/channel/WCChannelLink.ready(WCChannelLink.java:186(Compiled Code))
at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452(Compiled Code))
at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.handleNewRequest(HttpInboundLink.java:511(Compiled Code))
at com/ibm/ws/http/channel/inbound/impl/HttpInboundLink.processRequest(HttpInboundLink.java:305(Compiled Code))
at com/ibm/ws/http/channel/inbound/impl/HttpICLReadCallback.complete(HttpICLReadCallback.java:78(Compiled Code))
at com/ibm/ws/tcp/channel/impl/AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165(Compiled Code))
at com/ibm/io/async/AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217(Compiled Code))
at com/ibm/io/async/AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:143(Compiled Code))
at com/ibm/io/async/AsyncFuture.completed(AsyncFuture.java:138(Compiled Code))
at com/ibm/io/async/ResultHandler.complete(ResultHandler.java:204(Compiled Code))
at com/ibm/io/async/ResultHandler.runEventProcessingLoop(ResultHandler.java:775(Compiled Code))
at com/ibm/io/async/ResultHandler$2.run(ResultHandler.java:905)
at com/ibm/ws/util/ThreadPool$Worker.run(ThreadPool.java:1604)