Eclipse 2023-09: Debugging implementing JPA Entity Relationships in a Spring Boot Application
I'm migrating some code and I'm updating my dependencies and I’ve been working on a Spring Boot application in Eclipse 2023-09, and I’m running into a question with JPA entity relationships that isn’t behaving as expected during debugging. I have two entities, `Student` and `Course`, where a `Student` can enroll in multiple `Course` instances and a `Course` can have multiple `Students`. The relationships are set up using a many-to-many association with a join table. Here’s the code for the entities: ```java @Entity public class Student { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @ManyToMany(mappedBy = "students") private Set<Course> courses = new HashSet<>(); // Getters and Setters } @Entity public class Course { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @ManyToMany @JoinTable(name = "enrollment", joinColumns = @JoinColumn(name = "course_id"), inverseJoinColumns = @JoinColumn(name = "student_id")) private Set<Student> students = new HashSet<>(); // Getters and Setters } ``` When I try to debug my application and inspect the `courses` field of a `Student` object or the `students` field of a `Course` object, it shows empty collections, even though I know there are records in the database. I’ve confirmed that the database is properly populated, and I can retrieve the data using a repository method, but Eclipse doesn’t seem to show the expected relationships during debugging. I tried cleaning and rebuilding the project, and even restarting Eclipse, but the question continues. Additionally, I have the following configuration in my `application.properties` file: ```properties spring.datasource.url=jdbc:mysql://localhost:3306/mydb spring.datasource.username=root spring.datasource.password=password spring.jpa.hibernate.ddl-auto=update spring.jpa.show-sql=true ``` Is there a configuration that I might be missing, or is this a known scenario with Eclipse 2023-09? Also, any advice on how to improve my debugging experience with JPA entities in this context would be greatly appreciated. I'm working with Java in a Docker container on CentOS. Any suggestions would be helpful. Any suggestions would be helpful.