As per the migration guide, Spring 4.0 requires Hibernate Validator in version 4.3 or later and Tomcat in version 6.0.33 or later.
Hibernate Validator 4.3 depends upon EL 2.2 won't work with Tomcat 6.0.33 comes with EL 2.1. It will give below error:
NoSuchMethodError: javax.el.ExpressionFactory.newInstance()Ljavax/el/ExpressionFactory)
My app is deployed in Tomcat 6 and I do not have the rights to update the EL libs.
In this scenario, how to migrate to Spring 4.0 with Tomcat 6?