web.xml initiator to javax.servlet.Filter abnormal StrutsPrepareAndExecuteFilter can not be cast

Description WEB project you created with Meaven not introduce servlet-api
added in your pom.xml

  <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.1</version>
      <scope>provided</scope>
    </dependency>

It can be compiled by the