<plugin>
  <groupId>org.hibernate.orm.tooling</groupId>
  <artifactId>hibernate-enhance-maven-plugin</artifactId>
  <executions>
    <execution>
      <configuration>
        <!-- <https://vladmihalcea.com/maven-gradle-hibernate-enhance-plugin/> -->
        <failOnError>true</failOnError>
        <enableDirtyTracking>true</enableDirtyTracking>
        <enableLazyInitialization>false</enableLazyInitialization>
        <enableAssociationManagement>false</enableAssociationManagement>
        <enableExtendedEnhancement>false</enableExtendedEnhancement>
      </configuration>
      <goals>
        <goal>enhance</goal>
      </goals>
    </execution>
  </executions>
</plugin>

@Entity
@Table(name = "mytable")
public class MyTable {
    @EmbeddedId
    private IdTablePK mytablePK;
    @Column(name = "LIBELL")
    private String libell;

    public MyTable(IdTablePK pk) {
        this.mytablePK = pk;
    }

    public String getLibell() {
        return libell;
    }

    public void setLibell(String libell) {
        this.libell = libell;
    }
}

for(Field field : entity.getDeclaredFields()) {
    int modifiers = field.getModifiers();
    boolean isPrivate = (modifiers & Modifier.PRIVATE)!=0;
    assertTrue(isPrivate, "The field must be private");
}