java.lang.NoClassDefFoundError: org/apache/wicket/request/Request

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java.lang.ClassNotFoundException: org.apache.wicket.request.Request not found by org.apache.wicket.core [180]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1532)
at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
at java.lang.Class.getConstructor0(Class.java:3075)
at java.lang.Class.newInstance(Class.java:412)
at org.eclipse.jetty.servlet.ServletContextHandler$Context.createFilter(ServletContextHandler.java:1051)
at org.eclipse.jetty.servlet.FilterHolder.doStart(FilterHolder.java:104)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:768)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:265)
at org.ops4j.pax.web.service.internal.HttpServiceStarted.end(HttpServiceStarted.java:1032)
at org.ops4j.pax.web.extender.war.internal.RegisterWebAppVisitorWC.end(RegisterWebAppVisitorWC.java:341)
at org.ops4j.pax.web.extender.war.internal.model.WebApp.accept(WebApp.java:678)
at org.ops4j.pax.web.extender.war.internal.WebAppPublisher$WebAppDependencyListener.register(WebAppPublisher.java:237)
at org.ops4j.pax.web.extender.war.internal.WebAppPublisher$WebAppDependencyListener.addingService(WebAppPublisher.java:182)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864)
at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:317)
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
at org.ops4j.pax.web.extender.war.internal.WebAppPublisher.publish(WebAppPublisher.java:101)
at org.ops4j.pax.web.extender.war.internal.WebObserver.deploy(WebObserver.java:213)
at org.ops4j.pax.web.extender.war.internal.WebObserver$1.doStart(WebObserver.java:175)
at org.ops4j.pax.web.extender.war.internal.extender.SimpleExtension.start(SimpleExtension.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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