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via Stack Overflow by Gadi
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Could not initialize class io.netty.util.internal.PlatformDependent0
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Could not initialize class io.netty.util. internal.PlatformDependent0
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Could not initialize class io.netty.util.internal.PlatformDependent0
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Could not initialize class io.netty.util.internal.PlatformDependent0
java.lang.NoClassDefFoundError: Could not initialize class io.netty.util.internal.PlatformDependent0	at io.netty.util.internal.PlatformDependent.(PlatformDependent.java:101)	at io.netty.util.ConstantPool.(ConstantPool.java:32)	at io.netty.util.Signal$1.(Signal.java:27)	at io.netty.util.Signal.(Signal.java:27)	at io.netty.util.concurrent.DefaultPromise.(DefaultPromise.java:42)	at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:36)	at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:58)	at io.netty.util.concurrent.MultithreadEventExecutorGroup.(MultithreadEventExecutorGroup.java:47)	at io.netty.channel.MultithreadEventLoopGroup.(MultithreadEventLoopGroup.java:58)	at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:77)	at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:72)	at io.netty.channel.nio.NioEventLoopGroup.(NioEventLoopGroup.java:59)	at io.vertx.core.impl.VertxImpl.(VertxImpl.java:133)	at io.vertx.core.impl.VertxImpl.(VertxImpl.java:122)	at io.vertx.core.impl.VertxImpl.(VertxImpl.java:118)	at io.vertx.core.impl.VertxFactoryImpl.vertx(VertxFactoryImpl.java:34)	at io.vertx.core.Vertx.vertx(Vertx.java:80)	at com.example.hello.web.VertxRegistrationService.lambda$0(VertxRegistrationService.java:26)	at com.example.hello.web.TcclSwitch.executeWithTCCLSwitch(TcclSwitch.java:11)	at com.example.hello.web.VertxRegistrationService.start(VertxRegistrationService.java:26)	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.helper.BaseMethod.invokeMethod(BaseMethod.java:222)	at org.apache.felix.scr.impl.helper.BaseMethod.access$500(BaseMethod.java:37)	at org.apache.felix.scr.impl.helper.BaseMethod$Resolved.invoke(BaseMethod.java:615)	at org.apache.felix.scr.impl.helper.BaseMethod.invoke(BaseMethod.java:499)	at org.apache.felix.scr.impl.helper.ActivateMethod.invoke(ActivateMethod.java:295)	at org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject(SingleComponentManager.java:302)	at org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent(SingleComponentManager.java:113)	at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:866)	at org.apache.felix.scr.impl.manager.SingleComponentManager.getServiceInternal(SingleComponentManager.java:833)	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:724)	at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:399)	at org.apache.felix.scr.impl.config.ConfigurableComponentHolder.enableComponents(ConfigurableComponentHolder.java:676)	at org.apache.felix.scr.impl.BundleComponentActivator.initialEnable(BundleComponentActivator.java:339)	at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:360)	at org.apache.felix.scr.impl.Activator.access$000(Activator.java:53)	at org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:260)	at org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259)	at org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232)	at org.apache.felix.utils.extender.AbstractExtender.addingBundle(AbstractExtender.java:192)	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:469)	at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:415)	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.BundleTracker.open(BundleTracker.java:156)	at org.apache.felix.utils.extender.AbstractExtender.startTracking(AbstractExtender.java:150)	at org.apache.felix.utils.extender.AbstractExtender.doStart(AbstractExtender.java:142)	at org.apache.felix.scr.impl.Activator.doStart(Activator.java:170)	at org.apache.felix.utils.extender.AbstractExtender.start(AbstractExtender.java:114)	at org.apache.felix.scr.impl.Activator.restart(Activator.java:140)	at org.apache.felix.scr.impl.config.ScrConfiguration.configure(ScrConfiguration.java:215)	at org.apache.felix.scr.impl.config.ScrConfiguration.start(ScrConfiguration.java:136)	at org.apache.felix.scr.impl.Activator.start(Activator.java:110)	at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:697)	at org.apache.felix.framework.Felix.activateBundle(Felix.java:2226)	at org.apache.felix.framework.Felix.startBundle(Felix.java:2144)	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998)	at aQute.launcher.Launcher.update(Launcher.java:483)	at aQute.launcher.Launcher.activate(Launcher.java:382)	at aQute.launcher.Launcher.run(Launcher.java:276)	at aQute.launcher.Launcher.main(Launcher.java:133)