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java.lang.NullPointerException: 	at osgi.enroute.scheduler.simple.provider.InternalSchedulerImpl.after(InternalSchedulerImpl.java:90)	at osgi.enroute.scheduler.simple.provider.InternalSchedulerImpl.at(InternalSchedulerImpl.java:285)	at osgi.enroute.scheduler.simple.provider.InternalSchedulerImpl.schedule(InternalSchedulerImpl.java:211)	at osgi.enroute.scheduler.simple.provider.InternalSchedulerImpl.schedule(InternalSchedulerImpl.java:269)	at osgi.enroute.scheduler.simple.provider.InternalSchedulerImpl$Cron.(InternalSchedulerImpl.java:296)	at osgi.enroute.scheduler.simple.provider.InternalSchedulerImpl.addSchedule(InternalSchedulerImpl.java:317)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	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.open(DependencyManager.java:1556)	at org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject(SingleComponentManager.java:260)	at org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent(SingleComponentManager.java:108)	at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:906)	at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:879)	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:748)	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enableInternal(AbstractComponentManager.java:674)	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:429)	at org.apache.felix.scr.impl.manager.ConfigurableComponentHolder.enableComponents(ConfigurableComponentHolder.java:657)	at org.apache.felix.scr.impl.BundleComponentActivator.initialEnable(BundleComponentActivator.java:341)	at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:403)	at org.apache.felix.scr.impl.Activator.access$200(Activator.java:54)	at org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:278)	at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259)	at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232)	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:482)	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:415)	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232)	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:444)	at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:913)	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:834)	at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:516)	at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4544)	at org.apache.felix.framework.Felix.startBundle(Felix.java:2166)	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:977)	at org.apache.felix.gogo.command.Basic.start(Basic.java:739)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137)	at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82)	at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480)	at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406)	at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182)	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119)	at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94)	at org.apache.felix.gogo.shell.Console.run(Console.java:66)	at org.apache.felix.gogo.shell.Shell.console(Shell.java:212)	at org.apache.felix.gogo.shell.Shell.gosh(Shell.java:137)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:137)	at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:82)	at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480)	at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406)	at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182)	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119)	at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94)	at org.apache.felix.gogo.shell.Activator$StartShellJob.run(Activator.java:179)	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)	at java.util.concurrent.FutureTask.run(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at java.lang.Thread.run(Unknown Source)