[ https://issues.jboss.org/browse/JBTM-2883?page=com.atlassian.jira.plugin.... ] Ondra Chaloupka updated JBTM-2883: ---------------------------------- Description: Narayana hides stacktraces of exception when some internal error (e.g. protocol, communication...) happens in XTS. This particular problem reveales in case of customer case https://access.redhat.com/support/cases/#/case/01810386 where .NET application communicates with JBoss EAP over WS and WS-AT should be used. .NET (probably) uses non-standard header/message that caused Narayana response being null. The original error info was only {code} 17:43:33,846 ERROR [org.jboss.jbossts.txbridge] (http-/0.0.0.0:8543-1) com.arjuna.wst.SystemException: java.lang.NullPointerException17:43:33,852 TRACE [org.jboss.jbossts.txbridge] (http-/0.0.0.0:8543-1) JaxWSTxInboundBridgeHandler.close()17:43:33,854 INFO  [org.apache.cxf.services.IntegrationFrameworkServiceWsService.IntegrationFrameworkServiceWsPort.IntegrationFrameworkServiceWs] (http-/0.0.0.0:8543-1) Outbound Message {code} which is quite not much to start tracking reason behind the problem. There should be shown stacktrace in log to get more detailed information for investigation to start. E.g. it should be something like {code} 09:21:36,155 ERROR [stderr] (http-0.0.0.0:8443-1) RICKY: response=null 09:21:36,156 ERROR [stderr] (http-0.0.0.0:8443-1) java.lang.NullPointerException 09:21:36,156 ERROR [stderr] (http-0.0.0.0:8443-1) at com.arjuna.wsc11.RegistrationCoordinator.register(RegistrationCoordinator.java:58) 09:21:36,156 ERROR [stderr] (http-0.0.0.0:8443-1) at com.arjuna.mwlabs.wst11.at.remote.TransactionManagerImple.registerParticipant(TransactionManagerImple.java:156) 09:21:36,156 ERROR [stderr] (http-0.0.0.0:8443-1) at com.arjuna.mwlabs.wst11.at.remote.TransactionManagerImple.enlistForDurableTwoPhase(TransactionManagerImple.java:41) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.quickstarts.wsat.simple.RestaurantServiceATImpl.makeBooking(RestaurantServiceATImpl.java:74) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at java.lang.reflect.Method.invoke(Method.java:498) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) 09:21:36,157 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.webservices.deployers.WSComponentInstanceAssociationInterceptor.processInvocation(WSComponentInstanceAssociationInterceptor.java:49) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:189) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.webservices.invocation.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:129) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.stack.cxf.JBossWSInvoker.performInvocation(JBossWSInvoker.java:177) 09:21:36,158 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:104) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.jaxws.AbstractJAXWSMethodInvoker.invoke(AbstractJAXWSMethodInvoker.java:237) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.jaxws.JAXWSMethodInvoker.invoke(JAXWSMethodInvoker.java:69) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:146) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at java.util.concurrent.FutureTask.run(FutureTask.java:266) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:107) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:249) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:97) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:131) 09:21:36,159 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:88) 09:21:36,160 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:289) 09:21:36,160 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:209) 09:21:36,160 ERROR [stderr] (http-0.0.0.0:8443-1) at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) 09:21:36,160 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:136) 09:21:36,160 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140) 09:21:36,164 ERROR [stderr] (http-0.0.0.0:8443-1) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) 09:21:36,164 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) 09:21:36,164 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:150) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:854) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:656) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) 09:21:36,165 ERROR [stderr] (http-0.0.0.0:8443-1) at java.lang.Thread.run(Thread.java:745) 09:21:36,167 ERROR [org.jboss.as.webservices.invocation.InvocationHandlerJAXWS] (http-0.0.0.0:8443-1) JBAS015594: Method invocation failed with exception: Error when enlisting participant: org.jboss.as.quickstarts.wsat.simple.RestaurantException: Error when enlisting participant at org.jboss.as.quickstarts.wsat.simple.RestaurantServiceATImpl.makeBooking(RestaurantServiceATImpl.java:76) [classes:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_102] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_102] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_102] at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_102] at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) [jboss-as-ee-7.5.12.Final-redhat-1.jar:7.5.12.Final-redhat-1] at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.5.12.Final-redhat-1.jar:7.5.12.Final-redhat-1] at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.5.12.Final-redhat-1.jar:7.5.12.Final-redhat-1] at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.5.12.Final-redhat-1.jar:7.5.12.Final-redhat-1] at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.as.webservices.deployers.WSComponentInstanceAssociationInterceptor.processInvocation(WSComponentInstanceAssociationInterceptor.java:49) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.3.Final-redhat-1.jar:1.1.3.Final-redhat-1] at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:189) [jboss-as-ee-7.5.12.Final-redhat-1.jar:7.5.12.Final-redhat-1] at org.jboss.as.webservices.invocation.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:129) at org.jboss.wsf.stack.cxf.JBossWSInvoker.performInvocation(JBossWSInvoker.java:177) at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:104) at org.apache.cxf.jaxws.AbstractJAXWSMethodInvoker.invoke(AbstractJAXWSMethodInvoker.java:237) at org.apache.cxf.jaxws.JAXWSMethodInvoker.invoke(JAXWSMethodInvoker.java:69) at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:146) at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_102] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_102] at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37) at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:107) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272) at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121) at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:249) at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:97) at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:131) at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:88) at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:289) at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:209) at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-2.jar:1.0.2.Final-redhat-2] at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:136) at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140) [jbossws-spi-2.3.1.Final-redhat-1.jar:2.3.1.Final-redhat-1] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-2.jar:1.0.2.Final-redhat-2] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.5.12.Final-redhat-1.jar:7.5.12.Final-redhat-1] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:150) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:854) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:656) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.19.Final-redhat-1.jar:7.5.19.Final-redhat-1] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_102] Caused by: com.arjuna.wst.SystemException: java.lang.NullPointerException at com.arjuna.mwlabs.wst11.at.remote.TransactionManagerImple.registerParticipant(TransactionManagerImple.java:177) [jbossxts-4.17.38.Final-redhat-1.jar:4.17.38.Final-redhat-1] at com.arjuna.mwlabs.wst11.at.remote.TransactionManagerImple.enlistForDurableTwoPhase(TransactionManagerImple.java:41) [jbossxts-4.17.38.Final-redhat-1.jar:4.17.38.Final-redhat-1] at org.jboss.as.quickstarts.wsat.simple.RestaurantServiceATImpl.makeBooking(RestaurantServiceATImpl.java:74) [classes:] ... 58 more {code} The goal of this enhancement is to provide such logging on places where exception stacktrace is currently thrown away (not written to log). was: Narayana hides stacktraces of exception when some internal error (e.g. protocol, communication...) happens in XTS. This particular problem reveales in case of customer case https://access.redhat.com/support/cases/#/case/01810386 where .NET application communicates with JBoss EAP over WS and WS-AT should be used. .NET (probably) uses non-standard header/message that caused Narayana response being null. The original error info was only {code} 17:43:33,846 ERROR [org.jboss.jbossts.txbridge] (http-/0.0.0.0:8543-1) com.arjuna.wst.SystemException: java.lang.NullPointerException17:43:33,852 TRACE [org.jboss.jbossts.txbridge] (http-/0.0.0.0:8543-1) JaxWSTxInboundBridgeHandler.close()17:43:33,854 INFO  [org.apache.cxf.services.IntegrationFrameworkServiceWsService.IntegrationFrameworkServiceWsPort.IntegrationFrameworkServiceWs] (http-/0.0.0.0:8543-1) Outbound Message {code} which is quite not much to start tracking reason behind the problem. There should be shown stacktrace in log to get more detailed information for investigation to start. E.g. it should be something like {code} {code} The goal of this enhancement is to provide such logging on places where exception stacktrace is currently thrown away (not written to log). -- This message was sent by Atlassian JIRA (v7.2.3#72005)