title: Maven: Jar in Referenced Libraries despite not showing in effective POM
body: <p>Before importing my Maven project, I build it using the following: mvn clean install </p>
  
  <p>I then create the necessary Eclipse files as follows: mvn -Dwtpversion=2.0 eclipse:eclipse</p>
  
  <p>I notice that my Referenced Libraries in Eclipse contains this jar: validation-api-1.0.0.GA.jar</p>
  
  <p>However, when I view the effective POM in Eclipse no such jar appears. Therefore, I am wondering how this jar gets added to my Eclipse classpath?</p>
  
  <p>I require this jar for @Valid annotation I am using and I need Maven to be aware of it. If I build my classpath files using Maven then how come Maven is not aware of it?</p>
  
  <p>Thanks</p>