Why am I Getting an `org.hibernate.InstantiationException: No Default Constructor for Entity: principal.Cliente` Error?

org.hibernate.InstantiationException: No Default Constructor for Entity: principal.Cliente

Problem Explanation:

The error occurs due to the absence of a default constructor in the principal.Cliente entity class. As per Hibernate's conventions, all persistent classes must provide a public, no-argument constructor for automatic instantiation.

Resolution: Defining a Default Constructor

To resolve this issue, define a default constructor within the Cliente class, which simply initializes the instance without any arguments:

<code class="java">public class Cliente {
    public Cliente() {} // New default constructor
    
    // Other constructors and properties here
}</code>

With this modification, Hibernate can successfully instantiate and create instances of the Cliente entity.

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