Exception in thread "main" java.lang.SecurityException: class "javax.servlet.FilterRegistration"'s signer information does not match signer information of other classes in the same package
	at java.lang.ClassLoader.checkCerts(ClassLoader.java:952)
	at java.lang.ClassLoader.preDefineClass(ClassLoader.java:666)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:794)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at org.eclipse.jetty.servlet.ServletContextHandler.<init>(ServletContextHandler.java:136)
	at org.eclipse.jetty.servlet.ServletContextHandler.<init>(ServletContextHandler.java:129)
	at org.eclipse.jetty.servlet.ServletContextHandler.<init>(ServletContextHandler.java:98)
	at org.apache.spark.ui.JettyUtils$.createServletHandler(JettyUtils.scala:98)
	at org.apache.spark.ui.JettyUtils$.createServletHandler(JettyUtils.scala:89)
	at org.apache.spark.ui.WebUI.attachPage(WebUI.scala:64)
	at org.apache.spark.ui.WebUI$$anonfun$attachTab$1.apply(WebUI.scala:57)
	at org.apache.spark.ui.WebUI$$anonfun$attachTab$1.apply(WebUI.scala:57)
	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
	at org.apache.spark.ui.WebUI.attachTab(WebUI.scala:57)
	at org.apache.spark.ui.SparkUI.initialize(SparkUI.scala:66)
	at org.apache.spark.ui.SparkUI.<init>(SparkUI.scala:60)
	at org.apache.spark.ui.SparkUI.<init>(SparkUI.scala:42)
	at org.apache.spark.SparkContext.<init>(SparkContext.scala:222)
	at com.ibm.spark.SparkKernelBootstrap$$anonfun$initializeSparkContext$1.apply$mcV$sp(SparkKernelBootstrap.scala:183)
	at com.ibm.spark.SparkKernelBootstrap$$anonfun$initializeSparkContext$1.apply(SparkKernelBootstrap.scala:176)
	at com.ibm.spark.SparkKernelBootstrap$$anonfun$initializeSparkContext$1.apply(SparkKernelBootstrap.scala:176)
	at org.apache.spark.repl.SparkIMain.beQuietDuring(SparkIMain.scala:263)
	at com.ibm.spark.interpreter.ScalaInterpreter.doQuietly(ScalaInterpreter.scala:215)
	at com.ibm.spark.SparkKernelBootstrap.initializeSparkContext(SparkKernelBootstrap.scala:176)
	at com.ibm.spark.SparkKernelBootstrap.initialize(SparkKernelBootstrap.scala:57)
	at com.ibm.spark.SparkKernel$delayedInit$body.apply(SparkKernel.scala:10)
	at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
	at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
	at scala.App$$anonfun$main$1.apply(App.scala:71)
	at scala.App$$anonfun$main$1.apply(App.scala:71)
	at scala.collection.immutable.List.foreach(List.scala:318)
	at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
	at scala.App$class.main(App.scala:71)
	at com.ibm.spark.SparkKernel$.main(SparkKernel.scala:3)
	at com.ibm.spark.SparkKernel.main(SparkKernel.scala)