Cf Update Broke Error Handling

Question

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After installing Coldfusion 11 Update 6, our server would no longer output error messages. All we go was a blank screen. Uninstalling the update has cleared up the issue for now. The following entry was in the log:

Exception thrown by error-handling template:

java.lang.NullPointerException

at coldfusion.monitor.error.RequestErrorMonitorEventHandler.onRequestEnd(RequestErrorMonitorEventHandler.java:31)

at coldfusion.monitor.event.RequestMonitorEventProcessor.onError(RequestMonitorEventProcessor.java:558)

at coldfusion.filter.ExceptionFilter.handleException(ExceptionFilter.java:179)

at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:108)

at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:78)

at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)

at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)

at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:58)

at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)

at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)

at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)

at coldfusion.CfmServlet.service(CfmServlet.java:219)

at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)

at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at coldfusion.inspect.weinre.MobileDeviceDomInspectionFilter.doFilter(MobileDeviceDomInspectionFilter.java:121)

at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:422)

at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:199)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Unknown Source)

Aug 28, 2015 10:44:11 AM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet [CfmServlet] in context with path [/] threw exception [ROOT CAUSE:

java.lang.NullPointerException

at coldfusion.monitor.memory.MemoryRequestEventHandler.onRequestComplete(MemoryRequestEventHandler.java:29)

at coldfusion.monitor.event.RequestMonitorEventProcessor.onRequestComplete(RequestMonitorEventProcessor.java:283)

at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:46)

at coldfusion.filter.PathFilter.invoke(PathFilter.java:142)

at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:94)