Apache Commons OGNL
Apache Commons OGNL (Object-Graph Navigation Language) is a open source library for Java that provides a powerful expression language for querying and manipulating object graphs. It allows developers to easily navigate and manipulate complex data structures using a simple syntax, making it useful for tasks such as form validation, data binding, and configuration. OGNL is widely used in the Java web development community, particularly with frameworks like Struts and Hibernate.
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