I'm getting this as well (intermittently and can't reproduce on demand). I thought it had to do with adding a debug stop in a @WebRemote annotated method but not sure exactly what's causing this behavior. I am using multiple a4j and rich components in a single xhtml.
stack trace: 10:37:37,099 ERROR [ExceptionFilter] handling uncaught exception | javax.servlet.ServletException: could not acquire lock on @Synchronized component: noteAction | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:256) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:118) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) | at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) | at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) | at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) | at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) | at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) | at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) | at java.lang.Thread.run(Unknown Source) | Caused by: java.lang.IllegalStateException: could not acquire lock on @Synchronized component: noteAction | at org.jboss.seam.core.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:41) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54) | at org.javassist.tmp.java.lang.Object_$$_javassist_2.toString(Object_$$_javassist_2.java) | at com.sun.facelets.util.DevTools.writeVariables(DevTools.java:168) | at com.sun.facelets.util.DevTools.writeVariables(DevTools.java:147) | at com.sun.facelets.util.DevTools.debugHtml(DevTools.java:109) | at com.sun.facelets.FaceletViewHandler.handleRenderException(FaceletViewHandler.java:692) | at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:660) | at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) | at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216) | at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) | at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | ... 40 more | 10:37:37,161 ERROR [ExceptionFilter] exception root cause | java.lang.IllegalStateException: could not acquire lock on @Synchronized component: noteAction | at org.jboss.seam.core.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:41) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54) | at org.javassist.tmp.java.lang.Object_$$_javassist_2.toString(Object_$$_javassist_2.java) | at com.sun.facelets.util.DevTools.writeVariables(DevTools.java:168) | at com.sun.facelets.util.DevTools.writeVariables(DevTools.java:147) | at com.sun.facelets.util.DevTools.debugHtml(DevTools.java:109) | at com.sun.facelets.FaceletViewHandler.handleRenderException(FaceletViewHandler.java:692) | at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:660) | at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) | at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216) | at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) | at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:118) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) | at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) | at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) | at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) | at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) | at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) | at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) | at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) | at java.lang.Thread.run(Unknown Source) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4112679#4112679 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4112679 _______________________________________________ jboss-user mailing list [email protected] https://lists.jboss.org/mailman/listinfo/jboss-user
