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Konrad Windszus edited comment on SLING-6369 at 12/6/16 1:29 PM: ----------------------------------------------------------------- The reason for that is that the {{o.a.s.models.factory.MissingElementsException#getMessage()}} does only give out the first cause, but not any subsequent one to the root. The code in https://github.com/apache/sling/blob/trunk/bundles/extensions/models/api/src/main/java/org/apache/sling/models/factory/MissingElementsException.java#L48 needs to be refactored to evaluate/print all causes up to the root. That code should rather use {{Throwable.printStackTrace(...)}} to expose in the same format as all other exceptions. was (Author: kwin): The reason for that is that the {{o.a.s.models.factory.MissingElementsException#getMessage()}} does only give out the first cause, but not any subsequent one to the root. The code in https://github.com/apache/sling/blob/trunk/bundles/extensions/models/api/src/main/java/org/apache/sling/models/factory/MissingElementsException.java#L48 needs to be refactored to evaluate/print all causes up to the root. > Exceptions thrown by reflection API in ModelAdapterFactory#setField() are not > logged > ------------------------------------------------------------------------------------ > > Key: SLING-6369 > URL: https://issues.apache.org/jira/browse/SLING-6369 > Project: Sling > Issue Type: Bug > Affects Versions: Sling Models API 1.3.0 > Reporter: Dirk Rudolph > Priority: Minor > > We got the following exception due to "reflection issues" > {code} > 06.12.2016 09:36:08.242 *WARN* [172.19.143.86 [1481013368241] GET /[…] > HTTP/1.1] org.apache.sling.models.impl.ModelAdapterFactory Could not adapt to > model > org.apache.sling.models.factory.MissingElementsException: Could not inject > all required fields into class my.Model > Could not inject private org.apache.sling.api.adapter.AdapterManager > my.Model.adapterManager caused by Could not inject field due to reflection > issues > at > org.apache.sling.models.impl.ModelAdapterFactory.createObject(ModelAdapterFactory.java:549) > at > org.apache.sling.models.impl.ModelAdapterFactory.internalCreateModel(ModelAdapterFactory.java:310) > at > org.apache.sling.models.impl.ModelAdapterFactory.getAdapter(ModelAdapterFactory.java:186) > at > org.apache.sling.adapter.internal.AdapterManagerImpl.getAdapter(AdapterManagerImpl.java:147) > at > org.apache.sling.api.adapter.SlingAdaptable.adaptTo(SlingAdaptable.java:104) > at > org.apache.sling.resourceresolver.impl.ResourceResolverImpl.adaptTo(ResourceResolverImpl.java:837) > at […] > at > org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68) > at > com.adobe.granite.resourceresolverhelper.impl.ResourceResolverHelperImpl.doFilter(ResourceResolverHelperImpl.java:84) > at > org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68) > at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:129) > at > org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68) > at > org.apache.sling.engine.impl.SlingRequestProcessorImpl.doProcessRequest(SlingRequestProcessorImpl.java:151) > at > org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:216) > at > org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:85) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:79) > at > com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:308) > at > org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74) > at > org.apache.felix.http.sslfilter.internal.SslFilter.doFilter(SslFilter.java:89) > at > org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74) > at > org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:290) > at > org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74) > at > org.apache.sling.featureflags.impl.FeatureManager.doFilter(FeatureManager.java:116) > at > org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74) > at > org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:75) > at > org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74) > at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:129) > at > org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135) > at > org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74) > at > org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:124) > at > org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:61) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) > at > org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812) > at > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587) > at > org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221) > at > org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) > at > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) > at > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) > at > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) > at > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) > at > org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215) > at > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) > at org.eclipse.jetty.server.Server.handle(Server.java:499) > at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311) > at > org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) > at > org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) > at > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) > at > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) > at java.lang.Thread.run(Thread.java:745) > {code} > Unfortunately, the actual exception, isn't logged, making debugging the issue > quite difficult. From the exception message I'm only able to find the place > where it is thrown but not what exactly was thrown. My expectation is that > the cause is logged as well. -- This message was sent by Atlassian JIRA (v6.3.4#6332)