Adobe Experience Manager Sites & More

Peter_Puzanovs · 7/13/18

Hi,

We had issues deploying to Prod last night in AEM 6.3 CFP 2.

We have Servlets that are registered using following API:

@Component(service = Servlet.class,

property = {

Constants.SERVICE_DESCRIPTION + "=Service",

"service.label" + "=Service",

"sling.servlet.methods=GET",

SLING_SERVLET_RESOURCE_TYPES + "=sling/servlet/default",

SLING_SERVLET_RESOURCE_TYPES + "=library/components/content/component",

"sling.servlet.selectors=mySelector",

SLING_SERVLET_EXTENSIONS + "=json"
})

public class MyServlet extends SlingSafeMethodsServlet {

Unfortunately, while adding bundles 25% of servers thrown following exception:

11.07.2018 11:31:15.343 *WARN* [OsgiInstallerImpl] org.apache.sling.servlets.resolver [org.apache.sling.servlets.resolver.SlingServletResolver(745)] Could not get service from ref [javax.servlet.Servlet]
11.07.2018 11:31:15.343 *ERROR* [OsgiInstallerImpl] org.apache.sling.servlets.resolver.internal.SlingServletResolver bindServlet: Servlet service not available from reference [javax.servlet.Servlet]
11.07.2018 11:31:15.345 *ERROR* [FelixDispatchQueue] org.apache.sling.servlets.resolver FrameworkEvent ERROR (org.osgi.framework.ServiceException: Service factory returned null. (Component: com.company.MyServlet (3824)))

org.osgi.framework.ServiceException: Service factory returned null. (Component: com.company.MyServlet (3824))

at org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:380)

at org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:247)

at org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:344)

at org.apache.felix.framework.Felix.getService(Felix.java:3700)

at org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl.java:470)

at org.apache.felix.scr.impl.manager.SingleRefPair.getServiceObject(SingleRefPair.java:72)

at org.apache.felix.scr.impl.manager.DependencyManager.getService(DependencyManager.java:1461)

at org.apache.felix.scr.impl.manager.DependencyManager.getService(DependencyManager.java:1434)

at org.apache.felix.scr.impl.manager.ComponentContextImpl.locateService(ComponentContextImpl.java:147)

at org.apache.sling.servlets.resolver.internal.SlingServletResolver.createServlet(SlingServletResolver.java:968)

at org.apache.sling.servlets.resolver.internal.SlingServletResolver.bindServlet(SlingServletResolver.java:930)

at sun.reflect.GeneratedMethodAccessor44.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.felix.scr.impl.inject.BaseMethod.invokeMethod(BaseMethod.java:224)

at org.apache.felix.scr.impl.inject.BaseMethod.access$500(BaseMethod.java:39)

at org.apache.felix.scr.impl.inject.BaseMethod$Resolved.invoke(BaseMethod.java:617)

at org.apache.felix.scr.impl.inject.BaseMethod.invoke(BaseMethod.java:501)

at org.apache.felix.scr.impl.inject.BindMethod.invoke(BindMethod.java:655)

at org.apache.felix.scr.impl.manager.DependencyManager.doInvokeBindMethod(DependencyManager.java:1722)

at org.apache.felix.scr.impl.manager.DependencyManager.invokeBindMethod(DependencyManager.java:1699)

at org.apache.felix.scr.impl.manager.SingleComponentManager.invokeBindMethod(SingleComponentManager.java:372)

at org.apache.felix.scr.impl.manager.DependencyManager$MultipleDynamicCustomizer.addedService(DependencyManager.java:320)

at org.apache.felix.scr.impl.manager.DependencyManager$MultipleDynamicCustomizer.addedService(DependencyManager.java:291)

at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerAdded(ServiceTracker.java:1215)

at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.customizerAdded(ServiceTracker.java:1136)

at org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.trackAdding(ServiceTracker.java:945)

at org.apache.felix.scr.impl.manager.ServiceTracker$AbstractTracked.track(ServiceTracker.java:881)

at org.apache.felix.scr.impl.manager.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:1167)

at org.apache.felix.scr.impl.BundleComponentActivator$ListenerInfo.serviceChanged(BundleComponentActivator.java:127)

at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:991)

at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:839)

at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:546)

at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4558)

at org.apache.felix.framework.Felix.registerService(Felix.java:3550)

at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:348)

at org.apache.felix.scr.impl.manager.AbstractComponentManager$3.register(AbstractComponentManager.java:887)

at org.apache.felix.scr.impl.manager.AbstractComponentManager$3.register(AbstractComponentManager.java:874)

at org.apache.felix.scr.impl.manager.RegistrationManager.changeRegistration(RegistrationManager.java:132)

at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:941)

at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:741)

at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.addedService(DependencyManager.java:1012)

at org.apache.felix.scr.impl.manager.DependencyManager$SingleStaticCustomizer.addedService(DependencyManager.java:968)