org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/eclipse-tomcat8]]


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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/eclipse-tomcat8]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/lni]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/]]

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, 10 months ago
Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]

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Failed to start component [StandardEngine [Catalina].StandardHost[localhost].StandardContext[/Testing]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/FirstSpringMVC]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/meusContatos]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/]]

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Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/]]

Stack trace

org.apache.catalina.LifecycleException: Failed to start component 
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/eclipse-tomcat8]]
	at java.util.concurrent.FutureTask.report(Unknown Source)
	at java.util.concurrent.FutureTask.get(Unknown Source)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
	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)
Caused by: org.apache.catalina.LifecycleException: Failed to start 
component 
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/eclipse-tomcat8]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
	... 6 more
Caused by: java.lang.NullPointerException
	at org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer.isEnabled(WebSocketServerContainerInitializer.java:122)
	at org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer.onStartup(WebSocketServerContainerInitializer.java:137)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	... 6 more

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