Here are a few question-based titles that fit your article: * **Hibernate MappingException: \"Could Not Determine Type for: java.util.List\" - Why and How to Fix?** * **One-To-Many Relation

org.hibernate.MappingException: Could Not Determine Type for: java.util.List

Users encounter this error when defining a One-To-Many relationship in Hibernate using a Java List. It occurs when Hibernate cannot determine the type of the list, as in the given scenario.

The error message indicates that the issue stems from the "students" list in the College entity. To resolve this, the @OneToMany annotation should be placed directly above the field instead of the getter method. This change clarifies the relationship between the College and Student entities.

Refactorized Code:

<code class="java">@Entity
public class College {

  @Id
  @GeneratedValue(strategy = GenerationType.AUTO)
  private int collegeId;
  private String collegeName;

  @OneToMany(targetEntity = Student.class, mappedBy = "college", fetch = FetchType.EAGER)
  private List<Student> students;

  // getters and setters omitted for brevity
}</code>

By implementing this change, you ensure that Hibernate correctly associates the students list with the College entity, eliminating the error during mapping.

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