1 files changed, 6 insertions, 5 deletions
diff --git a/src/jpa/Category.java b/src/jpa/Category.java
index 8b30db9..431635c 100644
--- a/src/jpa/Category.java
+++ b/src/jpa/Category.java
@@ -1,7 +1,7 @@
 package jpa;
 
 import java.io.Serializable;
-import java.util.Set;
+import java.util.Collection;
 
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
@@ -22,7 +22,8 @@ public class Category implements Serializable
 {
    private static final long serialVersionUID = 1L;
 
-   @Id @GeneratedValue(strategy=GenerationType.IDENTITY)
+   @Id
+   @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;
 
    private String description;
@@ -31,7 +32,7 @@ public class Category implements Serializable
 
    // bi-directional many-to-many association to Product
    @ManyToMany(mappedBy = "categories")
-   private Set<Product> products;
+   private Collection<Product> products;
 
    public Category()
    {
@@ -67,12 +68,12 @@ public class Category implements Serializable
       this.name = name;
    }
 
-   public Set<Product> getProducts()
+   public Collection<Product> getProducts()
    {
       return this.products;
    }
 
-   public void setProducts(Set<Product> products)
+   public void setProducts(Collection<Product> products)
    {
       this.products = products;
    }