Error after suppressing import of org.osgi.service.http.context

karaf.log

2021-05-20T18:35:51,478 | ERROR | FelixDispatchQueue | Framework                        | 173 - org.ops4j.pax.web.pax-web-extender-whiteboard - 7.3.16 | FrameworkEvent ERROR
org.ops4j.lang.NullArgumentException: ServletContextHelper is null.
	at org.ops4j.lang.NullArgumentException.validateNotNull(NullArgumentException.java:74) ~[?:?]
	at org.ops4j.pax.web.extender.whiteboard.internal.element.ServletContextHelperElement.<init>(ServletContextHelperElement.java:42) ~[?:?]
	at org.ops4j.pax.web.extender.whiteboard.internal.tracker.ServletContextHelperTracker.addingService(ServletContextHelperTracker.java:168) ~[?:?]
	at org.ops4j.pax.web.extender.whiteboard.internal.tracker.ServletContextHelperTracker.addingService(ServletContextHelperTracker.java:49) ~[?:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:943) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:871) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:903) ~[osgi.core-7.0.0.jar:?]
	at org.apache.felix.framework.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:990) ~[?:?]
	at org.apache.felix.framework.EventDispatcher.fireEventImmediately(EventDispatcher.java:838) ~[?:?]
	at org.apache.felix.framework.EventDispatcher.fireServiceEvent(EventDispatcher.java:545) ~[?:?]
	at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4833) ~[?:?]
	at org.apache.felix.framework.Felix.registerService(Felix.java:3804) ~[?:?]
	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:328) ~[?:?]
	at org.apache.felix.scr.impl.manager.AbstractComponentManager$3.register(AbstractComponentManager.java:929) ~[?:?]
	at org.apache.felix.scr.impl.manager.AbstractComponentManager$3.register(AbstractComponentManager.java:915) ~[?:?]
	at org.apache.felix.scr.impl.manager.RegistrationManager.changeRegistration(RegistrationManager.java:133) ~[?:?]
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:984) ~[?:?]
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:752) ~[?:?]
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enableInternal(AbstractComponentManager.java:674) ~[?:?]
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:437) ~[?:?]
	at org.apache.felix.scr.impl.manager.ConfigurableComponentHolder.enableComponents(ConfigurableComponentHolder.java:667) ~[?:?]
	at org.apache.felix.scr.impl.BundleComponentActivator.initialEnable(BundleComponentActivator.java:305) ~[?:?]
	at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:554) ~[?:?]
	at org.apache.felix.scr.impl.Activator.access$200(Activator.java:70) ~[?:?]
	at org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:421) ~[?:?]
	at org.apache.felix.scr.impl.AbstractExtender.createExtension(AbstractExtender.java:196) ~[?:?]
	at org.apache.felix.scr.impl.AbstractExtender.modifiedBundle(AbstractExtender.java:169) ~[?:?]
	at org.apache.felix.scr.impl.AbstractExtender.modifiedBundle(AbstractExtender.java:49) ~[?:?]
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:488) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:420) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:450) ~[osgi.core-7.0.0.jar:?]
	at org.apache.felix.framework.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:915) ~[?:?]
	at org.apache.felix.framework.EventDispatcher.fireEventImmediately(EventDispatcher.java:834) ~[?:?]
	at org.apache.felix.framework.EventDispatcher.fireBundleEvent(EventDispatcher.java:516) ~[?:?]
	at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4817) ~[?:?]
	at org.apache.felix.framework.Felix.startBundle(Felix.java:2336) ~[?:?]
	at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1539) ~[?:?]
	at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308) ~[?:?]
	at java.lang.Thread.run(Thread.java:829) [?:?]