java.lang.SecurityException: class "javax.servlet.FilterRegistration"'s signer information does not

使用sbt+scala编写spark程序单机运行时出现

首先按网上给的方案

首先出现

Exception in thread "main" java.lang.VerifyError: class com.fasterxml.jackson.module.scala.ser.ScalaIteratorSerializer overrides final method withResolved

在sbt中加入

"com.fasterxml.jackson.core" % "jackson-databind" % "2.4.4"

出现下面问题

java.lang.SecurityException: class "javax.servlet.FilterRegistration"'s signer information does not match signer information of other classes in the same package

然后再查资料要求在sbt中加入

 "javax.servlet" % "javax.servlet-api" % "3.0.1",

然后一般这样就解决了，但是今天真是日了狗了，加入之后又出现，简直就是死循环

Exception in thread "main" java.lang.VerifyError: class com.fasterxml.jackson.module.scala.ser.ScalaIteratorSerializer overrides final method withResolved

新方案

1. 先用"evicted"命令看那些包冲突