In the commons-validator/pom.xml
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.8.3</version>
<optional>true</optional>
</dependency>
But in the lib folder (tomcat\webapps\ROOT\WEB-INF\lib), only commons-beanutils-1.7.0 version is found. Where will be the jar file located for the 1.8.3 version and is it necessary that the given version of the dependency should be present?